D5C1 Nutrient concentrations (5.1, 5.1.1)

5.1.2 Nutrient ratios (silica, nitrogen and phosphorus)

D5C1 Nutrient concentrations (5.1, 5.1.1)

5.1.2 Nutrient ratios (silica, nitrogen and phosphorus)

D5C1 Nutrient concentrations (5.1, 5.1.1)

D5C2 Chlorophyll-a concentration (5.2.1)

D5C4 Photic limit (5.2.2)

D5C6 Opportunistic macroalgae of benthic habitats (5.2.3)

D5C3 Harmful algal blooms (5.2.4)

D5C5 Dissolved oxygen concentration (5.3.2)

D5C3 Harmful algal blooms (5.2.4)

D5C7 Macrophyte communities of benthic habitats (5.3.1)

D5C5 Dissolved oxygen concentration (5.3.2)

LevelPressureOverall

LevelPressureNLoad

LevelPressureNLoad

LevelPressureNConcentration

LevelPressurePLoad

LevelPressurePLoad

LevelPressurePConcentration

LevelPressureOLoad

LevelPressureOConcentration

ImpactPressureWaterColumn

ImpactPressureWaterColumn

ImpactPressureWaterColumn

ImpactPressureWaterColumn

ImpactPressureWaterColumn

ImpactPressureSeabedHabitats

ImpactPressureSeabedHabitats

ImpactPressureSeabedHabitats

NutrientsOrganicEnrichment5_1

NutrientsNitrogen5_1

NutrientsNitrogen5_1

NutrientsPhosphorus5_1

NutrientsPhosphorus5_1

NutrientsOrganicMatter5_1

NutrientsEnrichmentWaterColumn5_2or5_3

NutrientsEnrichmentWaterColumn5_2or5_3

NutrientsEnrichmentWaterColumn5_2or5_3

NutrientsEnrichmentWaterColumn5_2or5_3

NutrientsEnrichmentWaterColumn5_2or5_3

NutrientsEnrichmentSeabedHabitats5_2or5_3

NutrientsEnrichmentSeabedHabitats5_2or5_3

NutrientsEnrichmentSeabedHabitats5_2or5_3

MarineCoast, NutrientLevels, OxygenLevels, RedSalinity, Salinity, Transparency, Turbidity, VarSalinity

MarineCoast, NutrientLevels, OxygenLevels, RedSalinity, Salinity, Transparency, Turbidity, VarSalinity

MarineCoast, NutrientLevels, OxygenLevels, RedSalinity, Salinity, Transparency, Turbidity, VarSalinity

MarineCoast, NutrientLevels, OxygenLevels, RedSalinity, Salinity, Transparency, Turbidity, VarSalinity

MarineCoast, NutrientLevels, OxygenLevels, RedSalinity, Salinity, Transparency, Turbidity, VarSalinity

LitRock, LitSed, ShallCoarseSed, ShallMud, ShallMxdSed, ShallRock, ShallRock, ShallSand

LitRock, LitSed, ShallCoarseSed, ShallMud, ShallMxdSed, ShallRock, ShallRock, ShallSand

LitRock, LitSed, ShallCoarseSed, ShallMud, ShallMxdSed, ShallRock, ShallRock, ShallSand

To achieve GES, nutrients should be kept at moderate levels. Therefore, the suggested threshold values (limit reference points) are based on Karydis (1999) eutroficaton criteria. NO3 <1μM

To achieve GES, nutrients should be kept at moderate levels. Therefore, the suggested threshold values (limit reference points) are based on Karydis (1999) eutroficaton criteria. PO4 <0,5 μM

To achieve GES, nutrients should be kept at moderate levels. Therefore, the suggested threshold values (limit reference points) are based on Karydis (1999) eutroficaton criteria. Chl-a<1,5μg/l

To achieve GES, water transparency should be over a certain threshold value ( reference points) : water transparency should be at least 5 m

There should be no occurrence of toxic algal blooms

There should be no occurrence of toxic algal blooms

There should be no occurrence of toxic algal blooms

There should be no occurrence of toxic algal blooms

Good

Good

Good

Good

Good

Good

Good

Good

Good

Good

Good

Good

Good

Good

Stable

Stable

Stable

Stable

Stable

Stable

Stable

Stable

Stable

Stable

Stable

Stable

Stable

Stable

High

High

High

High

High

High

High

High

High

High

High

High

High

High

The coastal waters of the assessment area are generally characterised as oligotrophic. However, in coastal areas there is localised enrichment by nutrients and organic material manly due to human activities, and run off. As a result primary productivity increases which is possible to lead to algal blooms. In the open sea there is no evidence of eutrophication. The concentrations of nutrients in the upper part of the water column (0-50m) are lower than those in the deep sea waters. However, dissoved organic nitrogen (DON) exhibits the opposite trend.

Nitrogen input is attributed to point and diffuse sources related to agriculture, urban wastewater treatment, livestock farming, urban activiities and waste from industry (e.g. food industry). The contribution of riverine influx is not considerable as there are not major rivers in the area. However, the Wastewater Treatment Plant of Psitallia in Saronikos Gulf constitutes a major point source in the Central Aegean as it treats major amounts of wastewater; 800,000 m3/day is discharged in Saronikos after being secondarily treated.

Nitrogen input is attributed to point and diffuse sources related to agriculture, urban wastewater treatment, livestock farming, urban activiities and waste from industry (e.g. food industry). The contribution of riverine influx is not considerable as there are not major rivers in the area. However, the Wastewater Treatment Plant of Psitallia in Saronikos Gulf constitutes a major point source in the Central Aegean as it treats major amounts of wastewater; 800,000 m3/day is discharged in Saronikos after being secondarily treated.

The levels of nitrogen in the assessment area range from 0.07 to 3.2 μmol N/l (DIN) in the water column . As a general trend the concentrations of Nitrogen in the open sea increase with depth. In the euphotic zone Nitrogen concentrations are lower than 1 μmol N/l in general. Saronikos Gulf is a hot spot in the area, presenting increased values (0.81 - 198 μmol N/l). As far as the temporal trend is concerned, winter exhibits comparatively higher concentrations than the summer ones, depending on dominating climatic conditions.

Phoshorus mainly derives from fertilisers, livestock farming, waste water treatment. Phosphorus is the limiting factor for phytoplagton growth .

Phoshorus mainly derives from fertilisers, livestock farming, waste water treatment. Phosphorus is the limiting factor for phytoplagton growth .

The levels of phosporus in the assessment area range from 0.001 to 0.144 μmol P/l in the water column.The general trend is for the concentrations of Phosphorus to increase with depth. The surficial values are generally very low; <0,05μmol P/l. As far as the temporal trend is concerned, winter exhibits comparatively higher concentrations than the summer ones , depending on dominating climatic conditions.

Organic load mainly derives from waste water treatment plants and livestock farming,

The concentrations of dissolved organic carbon (DOC) in the area ranged from 55 to 198 μmolC/l. Increased concentrations were found in the surface whereas the minimum values were measured in the deeper waters.

As a whole, the Central Aegean is oligotrophic, well oxyganated . The dissolved oxygen concentration ranged from 4.96-5.65 ml/l and the minimum was in the deep waters (500-1000m). However, in parts of Saronikos Gulf some low DO values (<3.00 ml/l) have ben observed near the bottom. Chlorophyll concentration was 0.0- 3.68 μg/l (higher value in Saronikos). Concerning bloom events, the toxic dinoflagelatte Alexandrium minutum proliferated during spring- summer of 2002 and 2003 in Saronikos Gulf (along with Kavala, Thermaikos, Pagasitikos, S. Evoikos Gulfs in the North Aegean). The nutrient levels were crucial in determining the numerical abundance and bloom out breaks of the species; the Gulfs could be characterised as eutrophic since PO4 were>0.1 μM and DIN >1.17μM. The N:P ratio was also elevated in the areas

As a whole, the Central Aegean is oligotrophic, well oxyganated . The dissolved oxygen concentration ranged from 4.96-5.65 ml/l and the minimum was in the deep waters (500-1000m). However, in parts of Saronikos Gulf some low DO values (<3.00 ml/l) have ben observed near the bottom. Chlorophyll concentration was 0.0- 3.68 μg/l (higher value in Saronikos). Concerning bloom events, the toxic dinoflagelatte Alexandrium minutum proliferated during spring- summer of 2002 and 2003 in Saronikos Gulf (along with Kavala, Thermaikos, Pagasitikos, S. Evoikos Gulfs in the North Aegean). The nutrient levels were crucial in determining the numerical abundance and bloom out breaks of the species; the Gulfs could be characterised as eutrophic since PO4 were>0.1 μM and DIN >1.17μM. The N:P ratio was also elevated in the areas

As a whole, the Central Aegean is oligotrophic, well oxyganated . The dissolved oxygen concentration ranged from 4.96-5.65 ml/l and the minimum was in the deep waters (500-1000m). However, in parts of Saronikos Gulf some low DO values (<3.00 ml/l) have ben observed near the bottom. Chlorophyll concentration was 0.0- 3.68 μg/l (higher value in Saronikos). Concerning bloom events, the toxic dinoflagelatte Alexandrium minutum proliferated during spring- summer of 2002 and 2003 in Saronikos Gulf (along with Kavala, Thermaikos, Pagasitikos, S. Evoikos Gulfs in the North Aegean). The nutrient levels were crucial in determining the numerical abundance and bloom out breaks of the species; the Gulfs could be characterised as eutrophic since PO4 were>0.1 μM and DIN >1.17μM. The N:P ratio was also elevated in the areas

As a whole, the Central Aegean is oligotrophic, well oxyganated . The dissolved oxygen concentration ranged from 4.96-5.65 ml/l and the minimum was in the deep waters (500-1000m). However, in parts of Saronikos Gulf some low DO values (<3.00 ml/l) have ben observed near the bottom. Chlorophyll concentration was 0.0- 3.68 μg/l (higher value in Saronikos). Concerning bloom events, the toxic dinoflagelatte Alexandrium minutum proliferated during spring- summer of 2002 and 2003 in Saronikos Gulf (along with Kavala, Thermaikos, Pagasitikos, S. Evoikos Gulfs in the North Aegean). The nutrient levels were crucial in determining the numerical abundance and bloom out breaks of the species; the Gulfs could be characterised as eutrophic since PO4 were>0.1 μM and DIN >1.17μM. The N:P ratio was also elevated in the areas

As a whole, the Central Aegean is oligotrophic, well oxyganated . The dissolved oxygen concentration ranged from 4.96-5.65 ml/l and the minimum was in the deep waters (500-1000m). However, in parts of Saronikos Gulf some low DO values (<3.00 ml/l) have ben observed near the bottom. Chlorophyll concentration was 0.0- 3.68 μg/l (higher value in Saronikos). Concerning bloom events, the toxic dinoflagelatte Alexandrium minutum proliferated during spring- summer of 2002 and 2003 in Saronikos Gulf (along with Kavala, Thermaikos, Pagasitikos, S. Evoikos Gulfs in the North Aegean). The nutrient levels were crucial in determining the numerical abundance and bloom out breaks of the species; the Gulfs could be characterised as eutrophic since PO4 were>0.1 μM and DIN >1.17μM. The N:P ratio was also elevated in the areas

The general state of the assessment area is good so the extent to which the ecosystem is affected is limited. Saronikos Gulf could only be mentioned as an area which is adversely impacted by nutrient enrichment.

The general state of the assessment area is good so the extent to which the ecosystem is affected is limited. Saronikos Gulf could only be mentioned as an area which is adversely impacted by nutrient enrichment.

The general state of the assessment area is good so the extent to which the ecosystem is affected is limited. Saronikos Gulf could only be mentioned as an area which is adversely impacted by nutrient enrichment.

Input load of nitrogen: 6,000 tonnes/year, Psitallia Wastewater Treatment Plant fluxe into Central Aegean) An estimated 600 tonnes of nitrogen enter the central Aegean due to aquaculture affecting the marine environment locally.

Input load of nitrogen: 6,000 tonnes/year, Psitallia Wastewater Treatment Plant fluxe into Central Aegean) An estimated 600 tonnes of nitrogen enter the central Aegean due to aquaculture affecting the marine environment locally.

High

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Non related GES component

Low

High

High

High

High

High

High

High

High

Stable

Stable

Stable

Stable

Stable

Stable

Unknown_NotAssessed

Stable

Decrease

Decrease

Decrease

Decrease

Decrease

Decrease

Decrease

Decrease

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

• AgricultForestry
• Industry
• Urban

• AgricultForestry
• Industry
• Urban

• AgricultForestry
• Industry
• Urban

• AgricultForestry
• Industry
• Urban

• AgricultForestry
• Industry
• Urban

• AgricultForestry
• Industry
• Urban

• AgricultForestry
• Industry
• Urban

• AgricultForestry
• Industry
• Urban

• AgricultForestry
• Industry
• Urban

• AgricultForestry
• Industry
• Urban

• AgricultForestry
• Industry
• Urban

• AgricultForestry
• Industry
• Urban

• AgricultForestry
• Industry
• Urban

• AgricultForestry
• Industry
• Urban

• AgricultForestry
• Industry
• Urban

• AgricultForestry
• Industry
• Urban

• AgricultForestry
• Industry
• Urban

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

D5C1 Nutrient concentrations (5.1, 5.1.1)

5.1.2 Nutrient ratios (silica, nitrogen and phosphorus)

D5C1 Nutrient concentrations (5.1, 5.1.1)

5.1.2 Nutrient ratios (silica, nitrogen and phosphorus)

D5C1 Nutrient concentrations (5.1, 5.1.1)

D5C2 Chlorophyll-a concentration (5.2.1)

D5C4 Photic limit (5.2.2)

D5C6 Opportunistic macroalgae of benthic habitats (5.2.3)

D5C3 Harmful algal blooms (5.2.4)

D5C5 Dissolved oxygen concentration (5.3.2)

D5C3 Harmful algal blooms (5.2.4)

D5C7 Macrophyte communities of benthic habitats (5.3.1)

D5C5 Dissolved oxygen concentration (5.3.2)

LevelPressureOverall

LevelPressureNLoad

LevelPressureNLoad

LevelPressureNConcentration

LevelPressurePLoad

LevelPressurePLoad

LevelPressurePConcentration

LevelPressureOLoad

LevelPressureOConcentration

ImpactPressureWaterColumn

ImpactPressureWaterColumn

ImpactPressureWaterColumn

ImpactPressureWaterColumn

ImpactPressureWaterColumn

ImpactPressureSeabedHabitats

ImpactPressureSeabedHabitats

ImpactPressureSeabedHabitats

NutrientsOrganicEnrichment5_1

NutrientsNitrogen5_1

NutrientsNitrogen5_1

NutrientsPhosphorus5_1

NutrientsPhosphorus5_1

NutrientsOrganicMatter5_1

NutrientsEnrichmentWaterColumn5_2or5_3

NutrientsEnrichmentWaterColumn5_2or5_3

NutrientsEnrichmentWaterColumn5_2or5_3

NutrientsEnrichmentWaterColumn5_2or5_3

NutrientsEnrichmentWaterColumn5_2or5_3

NutrientsEnrichmentSeabedHabitats5_2or5_3

NutrientsEnrichmentSeabedHabitats5_2or5_3

NutrientsEnrichmentSeabedHabitats5_2or5_3

MarineCoast, NutrientLevels, OxygenLevels, RedSalinity, Salinity, Transparency, Turbidity, VarSalinity

MarineCoast, NutrientLevels, OxygenLevels, RedSalinity, Salinity, Transparency, Turbidity, VarSalinity

MarineCoast, NutrientLevels, OxygenLevels, RedSalinity, Salinity, Transparency, Turbidity, VarSalinity

MarineCoast, NutrientLevels, OxygenLevels, RedSalinity, Salinity, Transparency, Turbidity, VarSalinity

MarineCoast, NutrientLevels, OxygenLevels, RedSalinity, Salinity, Transparency, Turbidity, VarSalinity

LitRock, LitSed, ShallCoarseSed, ShallMud, ShallMxdSed, ShallRock, ShallRock, ShallSand

LitRock, LitSed, ShallCoarseSed, ShallMud, ShallMxdSed, ShallRock, ShallRock, ShallSand

LitRock, LitSed, ShallCoarseSed, ShallMud, ShallMxdSed, ShallRock, ShallRock, ShallSand

To achieve GES, nutrients should be kept at moderate levels. Therefore, the suggested threshold values (limit reference points) are based on Karydis (1999) eutroficaton criteria. NO3 <1μM

To achieve GES, nutrients should be kept at moderate levels. Therefore, the suggested threshold values (limit reference points) are based on Karydis (1999) eutroficaton criteria. PO4 <0,5 μM

To achieve GES, nutrients should be kept at moderate levels. Therefore, the suggested threshold values (limit reference points) are based on Karydis (1999) eutroficaton criteria. Chl-a<1.5μg/l

To achieve GES, water transparency should be over a certain threshold value ( reference points) : water transparency should be at least 5 m

There should be no occurrence of toxic algal blooms

There should be no occurrence of toxic algal blooms

There should be no occurrence of toxic algal blooms

There should be no occurrence of toxic algal blooms

Good

Good

Good

Good

Good

Good

Good

Good

Good

Good

Good

Good

Good

Good

Unknown_NotAssessed

Unknown_NotAssessed

Unknown_NotAssessed

Unknown_NotAssessed

Unknown_NotAssessed

Unknown_NotAssessed

Unknown_NotAssessed

Unknown_NotAssessed

Unknown_NotAssessed

Unknown_NotAssessed

Unknown_NotAssessed

Unknown_NotAssessed

Unknown_NotAssessed

Unknown_NotAssessed

Low

Low

Low

Low

Low

Low

Low

Low

Low

Low

Low

Low

Low

Low

The assessment area is generally characterised as oligotrophic and there are no data regarding localised enrichment by nutrients in coastal areas. Riverine input is highly limited , therefore, there could not be any mentioning of riverine influx of nutrients. Generally, there is no evidence of eutrofication. The concentrations of nutrients in the upper part of the water column are lower than those in the deep sea waters. However, dissoved organic nitrogen (DON) exhibits the opposite trend.

Nitrogen input is mainly attributed to agriculture, wastewater treatment, livestock farming and human activiities, although there are not any significant urban agglomerations in the assessment area.

Nitrogen input is mainly attributed to agriculture, wastewater treatment, livestock farming and human activiities, although there are not any significant urban agglomerations in the assessment area.

The levels of nitrogen in the assessment area range from 0.08 to 5.6 μmol N/l (DIN) in the water column . As a general trend the concentrations of Nitrogen in the open sea increase with depth. In the euphotic zone Nitrogen concentrations are lower than 1 μmol N/l in general. As far as the temporal trend is concerned, winter exhibits comparatively higher concentrations than the summer ones , depending on dominating climatic conditions.

Phoshorus mainly derives from fertilisers, livestock farming, waste water treatment. Phosphorus is the limiting factor for the phytoplagkton growth.

Phoshorus mainly derives from fertilisers, livestock farming, waste water treatment. Phosphorus is the limiting factor for the phytoplagkton growth.

The levels of phosporus in the assessment area range from 0.022 to 0.24 μmol P/l in the water column.The general trend is for the concentrations of Phosphorus to increase with depth. The surficial values are generally very low; <0,05 μmol P/l. As far as the temporal trend is concerned, winter exhibits comparatively higher concentrations than the summer ones , depending on dominating climatic conditions.

Organic load mainly derives from waste water treatment plants and livestock farming,

As a whole, the Levantine Sea is oligotrophic, well oxyganated and does not present any HABs. The dissolved oxygen concentration ranged from 4.08-5.74 ml/l and the minimum was in the deep waters .Chlorophyll concentration is generally very low.

As a whole, the Levantine Sea is oligotrophic, well oxyganated and does not present any HABs. The dissolved oxygen concentration ranged from 4.08-5.74 ml/l and the minimum was in the deep waters .Chlorophyll concentration is generally very low.

As a whole, the Levantine Sea is oligotrophic, well oxyganated and does not present any HABs. The dissolved oxygen concentration ranged from 4.08-5.74 ml/l and the minimum was in the deep waters .Chlorophyll concentration is generally very low.

As a whole, the Levantine Sea is oligotrophic, well oxyganated and does not present any HABs. The dissolved oxygen concentration ranged from 4.08-5.74 ml/l and the minimum was in the deep waters .Chlorophyll concentration is generally very low.

As a whole, the Levantine Sea is oligotrophic, well oxyganated and does not present any HABs. The dissolved oxygen concentration ranged from 4.08-5.74 ml/l and the minimum was in the deep waters .Chlorophyll concentration is generally very low.

The general state of the assessment area is good so the extent to which the ecosystem is affected is limited.

The general state of the assessment area is good so the extent to which the ecosystem is affected is limited.

The general state of the assessment area is good so the extent to which the ecosystem is affected is limited.

Low

Non related GES component

Non related GES component

Low

Non related GES component

Non related GES component

Low

Non related GES component

Non related GES component

Low

Low

Low

Low

Low

Low

Low

Low

Unknown_NotAssessed

Unknown_NotAssessed

Unknown_NotAssessed

Unknown_NotAssessed

Unknown_NotAssessed

Unknown_NotAssessed

Unknown_NotAssessed

Unknown_NotAssessed

Decrease

Decrease

Decrease

Decrease

Decrease

Decrease

Decrease

Unknown_NotAssessed

The main causes of nutrient in the area are land-based anthropogenic activities such as agriculture and waste water treatment.

The main causes of nutrient in the area are land-based anthropogenic activities such as agriculture and waste water treatment.

The main causes of nutrient in the area are land-based anthropogenic activities such as agriculture and waste water treatment.

The main causes of nutrient in the area are land-based anthropogenic activities such as agriculture and waste water treatment.

The main causes of nutrient in the area are land-based anthropogenic activities such as agriculture and waste water treatment.

The main causes of nutrient in the area are land-based anthropogenic activities such as agriculture and waste water treatment.

The main causes of nutrient in the area are land-based anthropogenic activities such as agriculture and waste water treatment.

The main causes of nutrient in the area are land-based anthropogenic activities such as agriculture and waste water treatment.

The main causes of nutrient in the area are land-based anthropogenic activities such as agriculture and waste water treatment.

The main causes of nutrient in the area are land-based anthropogenic activities such as agriculture and waste water treatment.

The main causes of nutrient in the area are land-based anthropogenic activities such as agriculture and waste water treatment.

The main causes of nutrient in the area are land-based anthropogenic activities such as agriculture and waste water treatment.

The main causes of nutrient in the area are land-based anthropogenic activities such as agriculture and waste water treatment.

The main causes of nutrient in the area are land-based anthropogenic activities such as agriculture and waste water treatment.

The main causes of nutrient in the area are land-based anthropogenic activities such as agriculture and waste water treatment.

The main causes of nutrient in the area are land-based anthropogenic activities such as agriculture and waste water treatment.

The main causes of nutrient in the area are land-based anthropogenic activities such as agriculture and waste water treatment.

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

There is data inadequacy concerning nutrient and organic matter input . This could be addressed by establishing monitoring stations in the forthcoming programme. In addition information about human activities contributing to nutrient enrichment should be collected.

There is data inadequacy concerning nutrient and organic matter input . This could be addressed by establishing monitoring stations in the forthcoming programme. In addition information about human activities contributing to nutrient enrichment should be collected.

There is data inadequacy concerning nutrient and organic matter input . This could be addressed by establishing monitoring stations in the forthcoming programme. In addition information about human activities contributing to nutrient enrichment should be collected.

There is data inadequacy concerning nutrient and organic matter input . This could be addressed by establishing monitoring stations in the forthcoming programme. In addition information about human activities contributing to nutrient enrichment should be collected.

There is data inadequacy concerning nutrient and organic matter input . This could be addressed by establishing monitoring stations in the forthcoming programme. In addition information about human activities contributing to nutrient enrichment should be collected.

There is data inadequacy concerning nutrient and organic matter input . This could be addressed by establishing monitoring stations in the forthcoming programme. In addition information about human activities contributing to nutrient enrichment should be collected.

There is data inadequacy concerning nutrient and organic matter input . This could be addressed by establishing monitoring stations in the forthcoming programme. In addition information about human activities contributing to nutrient enrichment should be collected.

There is data inadequacy concerning nutrient and organic matter input . This could be addressed by establishing monitoring stations in the forthcoming programme. In addition information about human activities contributing to nutrient enrichment should be collected.

There is data inadequacy concerning nutrient and organic matter input . This could be addressed by establishing monitoring stations in the forthcoming programme. In addition information about human activities contributing to nutrient enrichment should be collected.

There is data inadequacy concerning nutrient and organic matter input . This could be addressed by establishing monitoring stations in the forthcoming programme. In addition information about human activities contributing to nutrient enrichment should be collected.

There is data inadequacy concerning nutrient and organic matter input . This could be addressed by establishing monitoring stations in the forthcoming programme. In addition information about human activities contributing to nutrient enrichment should be collected.

There is data inadequacy concerning nutrient and organic matter input . This could be addressed by establishing monitoring stations in the forthcoming programme. In addition information about human activities contributing to nutrient enrichment should be collected.

There is data inadequacy concerning nutrient and organic matter input . This could be addressed by establishing monitoring stations in the forthcoming programme. In addition information about human activities contributing to nutrient enrichment should be collected.

There is data inadequacy concerning nutrient and organic matter input . This could be addressed by establishing monitoring stations in the forthcoming programme. In addition information about human activities contributing to nutrient enrichment should be collected.

There is data inadequacy concerning nutrient and organic matter input . This could be addressed by establishing monitoring stations in the forthcoming programme. In addition information about human activities contributing to nutrient enrichment should be collected.

There is data inadequacy concerning nutrient and organic matter input . This could be addressed by establishing monitoring stations in the forthcoming programme. In addition information about human activities contributing to nutrient enrichment should be collected.

There is data inadequacy concerning nutrient and organic matter input . This could be addressed by establishing monitoring stations in the forthcoming programme. In addition information about human activities contributing to nutrient enrichment should be collected.

D5C1 Nutrient concentrations (5.1, 5.1.1)

5.1.2 Nutrient ratios (silica, nitrogen and phosphorus)

D5C1 Nutrient concentrations (5.1, 5.1.1)

5.1.2 Nutrient ratios (silica, nitrogen and phosphorus)

D5C1 Nutrient concentrations (5.1, 5.1.1)

D5C2 Chlorophyll-a concentration (5.2.1)

D5C4 Photic limit (5.2.2)

D5C6 Opportunistic macroalgae of benthic habitats (5.2.3)

D5C3 Harmful algal blooms (5.2.4)

D5C5 Dissolved oxygen concentration (5.3.2)

D5C3 Harmful algal blooms (5.2.4)

D5C7 Macrophyte communities of benthic habitats (5.3.1)

D5C5 Dissolved oxygen concentration (5.3.2)

LevelPressureOverall

LevelPressureNLoad

LevelPressureNLoad

LevelPressureNConcentration

LevelPressurePLoad

LevelPressurePLoad

LevelPressurePConcentration

LevelPressureOLoad

LevelPressureOConcentration

ImpactPressureWaterColumn

ImpactPressureWaterColumn

ImpactPressureWaterColumn

ImpactPressureWaterColumn

ImpactPressureWaterColumn

ImpactPressureSeabedHabitats

ImpactPressureSeabedHabitats

ImpactPressureSeabedHabitats

NutrientsOrganicEnrichment5_1

NutrientsNitrogen5_1

NutrientsNitrogen5_1

NutrientsPhosphorus5_1

NutrientsPhosphorus5_1

NutrientsOrganicMatter5_1

NutrientsEnrichmentWaterColumn5_2or5_3

NutrientsEnrichmentWaterColumn5_2or5_3

NutrientsEnrichmentWaterColumn5_2or5_3

NutrientsEnrichmentWaterColumn5_2or5_3

NutrientsEnrichmentWaterColumn5_2or5_3

NutrientsEnrichmentSeabedHabitats5_2or5_3

NutrientsEnrichmentSeabedHabitats5_2or5_3

NutrientsEnrichmentSeabedHabitats5_2or5_3

MarineCoast, NutrientLevels, OxygenLevels, RedSalinity, Salinity, Transparency, Turbidity, VarSalinity

MarineCoast, NutrientLevels, OxygenLevels, RedSalinity, Salinity, Transparency, Turbidity, VarSalinity

MarineCoast, NutrientLevels, OxygenLevels, RedSalinity, Salinity, Transparency, Turbidity, VarSalinity

MarineCoast, NutrientLevels, OxygenLevels, RedSalinity, Salinity, Transparency, Turbidity, VarSalinity

MarineCoast, NutrientLevels, OxygenLevels, RedSalinity, Salinity, Transparency, Turbidity, VarSalinity

LitRock, LitSed, ShallCoarseSed, ShallMud, ShallMxdSed, ShallRock, ShallRock, ShallSand

LitRock, LitSed, ShallCoarseSed, ShallMud, ShallMxdSed, ShallRock, ShallRock, ShallSand

LitRock, LitSed, ShallCoarseSed, ShallMud, ShallMxdSed, ShallRock, ShallRock, ShallSand

To achieve GES, nutrients should be kept at moderate levels. Therefore, the suggested threshold values (limit reference points) are based on Karydis (1999) eutroficaton criteria. NO3 <1μM

To achieve GES, nutrients should be kept at moderate levels. Therefore, the suggested threshold values (limit reference points) are based on Karydis (1999) eutroficaton criteria. PO4 <0,5 μM

To achieve GES, nutrients should be kept at moderate levels. Therefore, the suggested threshold values (limit reference points) are based on Karydis (1999) eutroficaton criteria. Chl-a<1.5μg/l

To achieve GES, water transparency should be over a certain threshold value ( reference points) : water transparency should be at least 5 m

There should be no occurrence of toxic algal blooms

There should be no occurrence of toxic algal blooms

There should be no occurrence of toxic algal blooms

There should be no occurrence of toxic algal blooms

Good

Good

Good

Good

Good

Good

Good

Good

Good

Good

Good

Good

Good

Good

Stable

Stable

Stable

Stable

Stable

Stable

Stable

Stable

Stable

Stable

Stable

Stable

Stable

Stable

High

High

High

High

High

High

High

High

High

High

High

High

High

High

The coastal waters of the assessment area are generally characterised as oligotrophic to mesotrophic. However, in coastal and estuarine areas there is localised enrichment by nutrients and organic material as rivers carry agricultural runoff. As a result primary productivity increases which is possible to lead to algal blooms. In the open sea there is no evidence of eutrofication. The concentrations of nutrients in the upper part of the water column (0-50m) are lower than those in the deep sea waters.

Nitrogen input is attributed to point and diffuse sources related to agriculture, urban wastewater treatment, livestock farming, urban activiities and waste from industry (e.g. food industry). The numerous major rivers which discharge in the assessment area play an important role in the transport of nutrients in the marine evironment . In addition, there is the contribution of the Black Sea to the trophic status of the North Aegean; the barckish, relatively cold and mesotrophic Black Sea waters enter the saline oligotrophic Aegean (approximately 300km3 of water enter the Aegean Sea per year).

Nitrogen input is attributed to point and diffuse sources related to agriculture, urban wastewater treatment, livestock farming, urban activiities and waste from industry (e.g. food industry). The numerous major rivers which discharge in the assessment area play an important role in the transport of nutrients in the marine evironment . In addition, there is the contribution of the Black Sea to the trophic status of the North Aegean; the barckish, relatively cold and mesotrophic Black Sea waters enter the saline oligotrophic Aegean (approximately 300km3 of water enter the Aegean Sea per year).

The levels of nitrogen in the assessment area range from 0.04 to 5.3 μmol N/l (DIN) in the water column . As a general trend the concentrations of Nitrogen in the open sea increase with depth. In the euphotic zone Nitrogen concentrations are lower than 1 μmol N/l in general. Thermaikos Gulf is a hot spot in the area, occasionally presenting eutrophic conditions (0.65 - 51.6 μmol N/l) -mainly in its coastal more impacted by the urban area of Thessaloniki. Generally, the northern coasts of the assessment area present higher values of nitrogen compared to the open sea. As far as the temporal trend is concerned, winter exhibits comparatively higher concentrations than the summer ones , depending on dominating climatic conditions.

Phoshorus mainly derives from fertilisers, livestock farming, waste water treatment plants. Riverine inputs are significant, tranporting major amounts of nutrients. Phosphorus is the limiting factor for phytoplagton growth .

Phoshorus mainly derives from fertilisers, livestock farming, waste water treatment plants. Riverine inputs are significant, tranporting major amounts of nutrients. Phosphorus is the limiting factor for phytoplagton growth .

The levels of phosporus in the assessment area range from 0.001 to 0.285 μmol P/l in the water column.The general trend for the concentrations of Phosphorus is to increase with depth. The surficial values are generally very low; <0,05μmol P/l. As far as the temporal trend is concerned, winter exhibits comparatively higher concentrations than the summer ones , depending on dominating climatic conditions. However, the Thermaikos Gulf presents higher levels of phosphate (0. 57 μmol P/l). The same applies for the northen coasts in the assessment area.

Organic load mainly derives from waste water treatment plants and livestock farming,

The concentrations of dissolved organic carbon (DOC) measured in the North Aegean ranged from 43 to 274 μmolC/l. Thermaikos Gulf was found to have 84-363 μmolC/l DOC values. Increased concentrations were found in the surface whereas the minimum values were measured in the deeper waters.

Aegean is oligotrophic to mesotrophic and well oxyganated and the impact from nutrient enrichment is limited . The dissolved oxygen concentration ranged from 3.12 - 6.81 ml/l and the minimum was in the deep waters (500-1000m). Chlorophyll concentration was 0.3- 8.51μg/l. Concerning bloom events, the toxic dinoflagelatte Alexandrium minutum proliferated during spring- summer of 2002 and 2003 in five Gulfs of the asessment area (Kavala, Thermaikos, Pagasitikos, S. Evoikos). The nutrient levels were crucial in determining the numerical abundance and bloom out breaks of the species; the Gulfs could be characterised as eutrophic since PO4 were>0.1 μM and DIN >1.17μM. The N:P ratio was also elevated in the areas. In 2005, in the Gulf of Kalloni, Lesvos island the toxic species Pseudo-nitzschia calliantha exploited extreme nutirent enrichment due to terrestrial inputs (after intensive rainfalls) leading to a 20-day bloom event which caused a biomass peak and a diversity decrease. In 2004-2006, Ostreopsis species ,which contained a PLT-like compound (putative PLT, p-PLT), was reported to haxe contaminated shellfish in various areas of the North Aegean. In 2000-2002, Dinophysis (accuminata)blooms occured in Thermaikos Gulf.

Aegean is oligotrophic to mesotrophic and well oxyganated and the impact from nutrient enrichment is limited . The dissolved oxygen concentration ranged from 3.12 - 6.81 ml/l and the minimum was in the deep waters (500-1000m). Chlorophyll concentration was 0.3- 8.51μg/l. Concerning bloom events, the toxic dinoflagelatte Alexandrium minutum proliferated during spring- summer of 2002 and 2003 in five Gulfs of the asessment area (Kavala, Thermaikos, Pagasitikos, S. Evoikos). The nutrient levels were crucial in determining the numerical abundance and bloom out breaks of the species; the Gulfs could be characterised as eutrophic since PO4 were>0.1 μM and DIN >1.17μM. The N:P ratio was also elevated in the areas. In 2005, in the Gulf of Kalloni, Lesvos island the toxic species Pseudo-nitzschia calliantha exploited extreme nutirent enrichment due to terrestrial inputs (after intensive rainfalls) leading to a 20-day bloom event which caused a biomass peak and a diversity decrease. In 2004-2006, Ostreopsis species ,which contained a PLT-like compound (putative PLT, p-PLT), was reported to haxe contaminated shellfish in various areas of the North Aegean. In 2000-2002, Dinophysis (accuminata)blooms occured in Thermaikos Gulf.

Aegean is oligotrophic to mesotrophic and well oxyganated and the impact from nutrient enrichment is limited . The dissolved oxygen concentration ranged from 3.12 - 6.81 ml/l and the minimum was in the deep waters (500-1000m). Chlorophyll concentration was 0.3- 8.51μg/l. Concerning bloom events, the toxic dinoflagelatte Alexandrium minutum proliferated during spring- summer of 2002 and 2003 in five Gulfs of the asessment area (Kavala, Thermaikos, Pagasitikos, S. Evoikos). The nutrient levels were crucial in determining the numerical abundance and bloom out breaks of the species; the Gulfs could be characterised as eutrophic since PO4 were>0.1 μM and DIN >1.17μM. The N:P ratio was also elevated in the areas. In 2005, in the Gulf of Kalloni, Lesvos island the toxic species Pseudo-nitzschia calliantha exploited extreme nutirent enrichment due to terrestrial inputs (after intensive rainfalls) leading to a 20-day bloom event which caused a biomass peak and a diversity decrease. In 2004-2006, Ostreopsis species ,which contained a PLT-like compound (putative PLT, p-PLT), was reported to haxe contaminated shellfish in various areas of the North Aegean. In 2000-2002, Dinophysis (accuminata)blooms occured in Thermaikos Gulf.

Aegean is oligotrophic to mesotrophic and well oxyganated and the impact from nutrient enrichment is limited . The dissolved oxygen concentration ranged from 3.12 - 6.81 ml/l and the minimum was in the deep waters (500-1000m). Chlorophyll concentration was 0.3- 8.51μg/l. Concerning bloom events, the toxic dinoflagelatte Alexandrium minutum proliferated during spring- summer of 2002 and 2003 in five Gulfs of the asessment area (Kavala, Thermaikos, Pagasitikos, S. Evoikos). The nutrient levels were crucial in determining the numerical abundance and bloom out breaks of the species; the Gulfs could be characterised as eutrophic since PO4 were>0.1 μM and DIN >1.17μM. The N:P ratio was also elevated in the areas. In 2005, in the Gulf of Kalloni, Lesvos island the toxic species Pseudo-nitzschia calliantha exploited extreme nutirent enrichment due to terrestrial inputs (after intensive rainfalls) leading to a 20-day bloom event which caused a biomass peak and a diversity decrease. In 2004-2006, Ostreopsis species ,which contained a PLT-like compound (putative PLT, p-PLT), was reported to haxe contaminated shellfish in various areas of the North Aegean. In 2000-2002, Dinophysis (accuminata)blooms occured in Thermaikos Gulf.

Aegean is oligotrophic to mesotrophic and well oxyganated and the impact from nutrient enrichment is limited . The dissolved oxygen concentration ranged from 3.12 - 6.81 ml/l and the minimum was in the deep waters (500-1000m). Chlorophyll concentration was 0.3- 8.51μg/l. Concerning bloom events, the toxic dinoflagelatte Alexandrium minutum proliferated during spring- summer of 2002 and 2003 in five Gulfs of the asessment area (Kavala, Thermaikos, Pagasitikos, S. Evoikos). The nutrient levels were crucial in determining the numerical abundance and bloom out breaks of the species; the Gulfs could be characterised as eutrophic since PO4 were>0.1 μM and DIN >1.17μM. The N:P ratio was also elevated in the areas. In 2005, in the Gulf of Kalloni, Lesvos island the toxic species Pseudo-nitzschia calliantha exploited extreme nutirent enrichment due to terrestrial inputs (after intensive rainfalls) leading to a 20-day bloom event which caused a biomass peak and a diversity decrease. In 2004-2006, Ostreopsis species ,which contained a PLT-like compound (putative PLT, p-PLT), was reported to haxe contaminated shellfish in various areas of the North Aegean. In 2000-2002, Dinophysis (accuminata)blooms occured in Thermaikos Gulf.

The general state of the assessment area is good so the extent to which the ecosystem is affected is limited. The eutrophic conditions as mentioned above adversely impact the areas where they occur to a certain extent.

The general state of the assessment area is good so the extent to which the ecosystem is affected is limited. The eutrophic conditions as mentioned above adversely impact the areas where they occur to a certain extent.

The general state of the assessment area is good so the extent to which the ecosystem is affected is limited. The eutrophic conditions as mentioned above adversely impact the areas where they occur to a certain extent.

179,000 tonnes of nitrogen per year (riverine fluxes into the Aegean Sea. An estimated 200 tonnes of nitrogen enter the north Aegean due to aquaculture affecting the marine environment locally

179,000 tonnes of nitrogen per year (riverine fluxes into the Aegean Sea. An estimated 200 tonnes of nitrogen enter the north Aegean due to aquaculture affecting the marine environment locally

8,100 tonnes per year (riverine fluxes into the Aegen Sea, based on 1998 data from Ludwig et al, 2009)

8,100 tonnes per year (riverine fluxes into the Aegen Sea, based on 1998 data from Ludwig et al, 2009)

High

Moderate

Moderate

High

Moderate

Moderate

High

Non related GES component

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Stable

Stable

Stable

Decreasing

Decreasing

Stable

Unknown_NotAssessed

Unknown_NotAssessed

Decrease

Decrease

Decrease

Decrease

Decrease

Decrease

Decrease

Decrease

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

• AgricultForestry
• Aquaculture
• Urban

• AgricultForestry
• Aquaculture
• Urban

• AgricultForestry
• Aquaculture
• Urban

• AgricultForestry
• Aquaculture
• Urban

• AgricultForestry
• Aquaculture
• Urban

• AgricultForestry
• Aquaculture
• Urban

• AgricultForestry
• Aquaculture
• Urban

• AgricultForestry
• Aquaculture
• Urban

• AgricultForestry
• Aquaculture
• Urban

• AgricultForestry
• Aquaculture
• Urban

• AgricultForestry
• Aquaculture
• Urban

• AgricultForestry
• Aquaculture
• Urban

• AgricultForestry
• Aquaculture
• Urban

• AgricultForestry
• Aquaculture
• Urban

• AgricultForestry
• Aquaculture
• Urban

• AgricultForestry
• Aquaculture
• Urban

• AgricultForestry
• Aquaculture
• Urban

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning organic matter input . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

D5C1 Nutrient concentrations (5.1, 5.1.1)

5.1.2 Nutrient ratios (silica, nitrogen and phosphorus)

D5C1 Nutrient concentrations (5.1, 5.1.1)

5.1.2 Nutrient ratios (silica, nitrogen and phosphorus)

D5C1 Nutrient concentrations (5.1, 5.1.1)

D5C2 Chlorophyll-a concentration (5.2.1)

D5C4 Photic limit (5.2.2)

D5C6 Opportunistic macroalgae of benthic habitats (5.2.3)

D5C3 Harmful algal blooms (5.2.4)

D5C5 Dissolved oxygen concentration (5.3.2)

D5C3 Harmful algal blooms (5.2.4)

D5C7 Macrophyte communities of benthic habitats (5.3.1)

D5C5 Dissolved oxygen concentration (5.3.2)

LevelPressureOverall

LevelPressureNLoad

LevelPressureNLoad

LevelPressureNConcentration

LevelPressurePLoad

LevelPressurePLoad

LevelPressurePConcentration

LevelPressureOLoad

LevelPressureOConcentration

ImpactPressureWaterColumn

ImpactPressureWaterColumn

ImpactPressureWaterColumn

ImpactPressureWaterColumn

ImpactPressureWaterColumn

ImpactPressureSeabedHabitats

ImpactPressureSeabedHabitats

ImpactPressureSeabedHabitats

NutrientsOrganicEnrichment5_1

NutrientsNitrogen5_1

NutrientsNitrogen5_1

NutrientsPhosphorus5_1

NutrientsPhosphorus5_1

NutrientsOrganicMatter5_1

NutrientsEnrichmentWaterColumn5_2or5_3

NutrientsEnrichmentWaterColumn5_2or5_3

NutrientsEnrichmentWaterColumn5_2or5_3

NutrientsEnrichmentWaterColumn5_2or5_3

NutrientsEnrichmentWaterColumn5_2or5_3

NutrientsEnrichmentSeabedHabitats5_2or5_3

NutrientsEnrichmentSeabedHabitats5_2or5_3

NutrientsEnrichmentSeabedHabitats5_2or5_3

MarineCoast, NutrientLevels, OxygenLevels, RedSalinity, Salinity, Transparency, Turbidity, VarSalinity

MarineCoast, NutrientLevels, OxygenLevels, RedSalinity, Salinity, Transparency, Turbidity, VarSalinity

MarineCoast, NutrientLevels, OxygenLevels, RedSalinity, Salinity, Transparency, Turbidity, VarSalinity

MarineCoast, NutrientLevels, OxygenLevels, RedSalinity, Salinity, Transparency, Turbidity, VarSalinity

MarineCoast, NutrientLevels, OxygenLevels, RedSalinity, Salinity, Transparency, Turbidity, VarSalinity

LitRock, LitSed, ShallCoarseSed, ShallMud, ShallMxdSed, ShallRock, ShallRock, ShallSand

LitRock, LitSed, ShallCoarseSed, ShallMud, ShallMxdSed, ShallRock, ShallRock, ShallSand

LitRock, LitSed, ShallCoarseSed, ShallMud, ShallMxdSed, ShallRock, ShallRock, ShallSand

To achieve GES, nutrients should be kept at moderate levels. Therefore, the suggested threshold values (limit reference points) are based on Karydis (1999) eutroficaton criteria. NO3 <1μM

To achieve GES, nutrients should be kept at moderate levels. Therefore, the suggested threshold values (limit reference points) are based on Karydis (1999) eutroficaton criteria. PO4 <0,5 μM

To achieve GES, nutrients should be kept at moderate levels. Therefore, the suggested threshold values (limit reference points) are based on Karydis (1999) eutroficaton criteria. Chl-a<1.5μg/l

To achieve GES, water transparency should be over a certain threshold value ( reference points) : water transparency should be at least 5 m

There should be no occurrence of toxic algal blooms

There should be no occurrence of toxic algal blooms

There should be no occurrence of toxic algal blooms

There should be no occurrence of toxic algal blooms

Good

Good

Good

Good

Good

Good

Good

Good

Good

Good

Good

Good

Good

Good

Stable

Stable

Stable

Stable

Stable

Stable

Stable

Stable

Stable

Stable

Stable

Stable

Stable

Stable

High

High

High

High

High

High

High

High

High

High

High

High

High

High

The coastal waters of the assessment area are generally characterised as oligotrophic. However, in coastal areas there is localised enrichment by nutrients and organic material due to anthropogenuc activities. As a result primary productivity increases. In the open sea there is no evidence of eutrofication. The concentrations of nutrients in the upper part of the water column (0-50m) are lower than those in the deep sea waters.

Nitrogen input is attributed to agriculture, urban wastewater treatment, livestock farming, urban activiities and industrial waste. The rivers in the assessment area are scarce. Hence, they are not considered important nutrient carriers.

Nitrogen input is attributed to agriculture, urban wastewater treatment, livestock farming, urban activiities and industrial waste. The rivers in the assessment area are scarce. Hence, they are not considered important nutrient carriers.

The levels of nitrogen in the assessment area range from 0.04 to 4.2 μmol N/l (DIN) in the water column . As a general trend the concentrations of Nitrogen in the open sea increase with depth. In the euphotic zone Nitrogen concentrations are lower than 1 μmol N/l in general. In the water column near the main urban areas of the South Aegean - Iraklio, Rethymno, Chania - NO3 concentrations were found to range from 0.3- 8.25 μmol N/l , that is relatively higher, obviously due to intense human activity. As far as the temporal trend is concerned, winter exhibits comparatively higher concentrations than the summer ones, depending on dominating climatic conditions.

Phoshorus mainly derives from fertilisers, livestock farming, waste water treatment. There are no significant riverine inputs in the assessment area. Phosphorus is the limiting factor for phytoplagton growth .

Phoshorus mainly derives from fertilisers, livestock farming, waste water treatment. There are no significant riverine inputs in the assessment area. Phosphorus is the limiting factor for phytoplagton growth .

The levels of phosporus in the assessment area range from 0.001 to 0.2 μmol P/l in the water column.The general trend is for the concentrations of Phosphorus to increase with depth. The surficial values are generally very low; <0,05μmol P/l. As far as the temporal trend is concerned, winter exhibits comparatively higher concentrations than the summer ones, depending on dominating climatic conditions.

Organic matter mainly derives from, livestock farming, waste water treatment as well as from the biota of the area. There are no significant such inputs in the assessment area

The concentrations of dissolved organic carbon (DOC) in the area ranged from 48 to 87 μmolC/l. Increased concentrations were found in the surface whereas the minimum values were measured in the deeper waters.

As a whole, the South Aegean is oligotrophic, well oxyganated and does not present any HABs. The dissolved oxygen concentration ranged from 3.12- 6.81 ml/l and the minimum was in the deep waters. Chlorophyll concentration was measured 0.06- 0.78 μg/l (2005 data).

As a whole, the South Aegean is oligotrophic, well oxyganated and does not present any HABs. The dissolved oxygen concentration ranged from 3.12- 6.81 ml/l and the minimum was in the deep waters. Chlorophyll concentration was measured 0.06- 0.78 μg/l (2005 data).

As a whole, the South Aegean is oligotrophic, well oxyganated and does not present any HABs. The dissolved oxygen concentration ranged from 3.12- 6.81 ml/l and the minimum was in the deep waters. Chlorophyll concentration was measured 0.06- 0.78 μg/l (2005 data).

As a whole, the South Aegean is oligotrophic, well oxyganated and does not present any HABs. The dissolved oxygen concentration ranged from 3.12- 6.81 ml/l and the minimum was in the deep waters. Chlorophyll concentration was measured 0.06- 0.78 μg/l (2005 data).

As a whole, the South Aegean is oligotrophic, well oxyganated and does not present any HABs. The dissolved oxygen concentration ranged from 3.12- 6.81 ml/l and the minimum was in the deep waters. Chlorophyll concentration was measured 0.06- 0.78 μg/l (2005 data).

The general state of the assessment area is good so the extent to which the ecosystem is affected is limited.

The general state of the assessment area is good so the extent to which the ecosystem is affected is limited.

The general state of the assessment area is good so the extent to which the ecosystem is affected is limited.

Moderate

Non related GES component

Non related GES component

Moderate

Non related GES component

Non related GES component

Moderate

Non related GES component

Non related GES component

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Unknown_NotAssessed

Unknown_NotAssessed

Stable

Unknown_NotAssessed

Unknown_NotAssessed

Stable

Stable

Unknown_NotAssessed

Decrease

Decrease

Decrease

Decrease

Decrease

Decrease

Decrease

Decrease

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

The main causes of nutrient and organic matter enrichment in the area are land-based anthropogenic activities such as agriculture, livestock farming and waste water treatment.

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

• AgricultForestry
• NotReported
• Urban

There is data inadequacy concerning nutrients and organic matter inputs . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning nutrients and organic matter inputs . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning nutrients and organic matter inputs . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning nutrients and organic matter inputs . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning nutrients and organic matter inputs . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning nutrients and organic matter inputs . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning nutrients and organic matter inputs . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning nutrients and organic matter inputs . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning nutrients and organic matter inputs . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning nutrients and organic matter inputs . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning nutrients and organic matter inputs . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning nutrients and organic matter inputs . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning nutrients and organic matter inputs . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning nutrients and organic matter inputs . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning nutrients and organic matter inputs . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning nutrients and organic matter inputs . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.

There is data inadequacy concerning nutrients and organic matter inputs . This could be addressed by setting organic matter as a monitoring parameter in the forthcoming programme.