There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.

There is a need to analyse the structure of the national hydrochemical monitoring programme of rivers, including its spatial and temporal scope, in order to ensure sufficient data for reliable assessment of nutrient load from land-based sources (including nutrient balance on agricultural land). There are only a few marine stations, where water sampling of nutrients are done from discrete depths strictly following HELCOM guidance. Samples are collected from 1, 5, 10 m depth and the bottom layer at the most stations. This doesn't give a comprehensive overview of nutrients concentration in the water column, the depth of nutricline after spring bloom and stratification process. There is no monitoring to assess the internal nutrient load from sediments and transboundary nutrient inputs yet. There is no regular monitoring of pCO2. Regular measurements of pH are done, but only pH data do not allow reliably assess the acidification of the marine environment. Regular pCO2 measurements also would provide the data for production assessments. The frequency of monitoring in off-shore areas (6 times per year) does not allow the full use of developed chlorophyll-a indicator as the status assessment based on this data is not with sufficient reliability. There are only a few stations, where water sampling and analyses of chlorophyll-a are done from discrete depths strictly following HELCOM guidance. Off-shore area low sampling frequency is partly compensated by ferrybox-monitoring. Dissolved oxygen and chlorophyll-a concentration data collected by remote sensing and new technologies (buoys, glider) (fluorescence is measured and converted to Chl a concentration using corresponding laboratory analyses results) should be integrated to regular in situ monitoring for status assessments. The number of benthic monitoring stations and benthic transects in coastal waters is not sufficient to provide high-level confidence assessments of the ecological status of a body of water in some areas. Currently, there is no zoobenthos transect in the Northern Baltic Proper basin and Limecola balthica depth distribution in this area could not be assessed, therefore. There is a need to develop the remote sensing methods as perspective and effective approach to monitoring the effects of eutrophication (criteria D5C2, D5C3, and also D5C4, D5C6). It is necessary to carry out relevant pilot projects and develop regional cooperation.