Member State report / Art11 / 2020 / D4 / Netherlands / NE Atlantic: Greater North Sea
Report type | Member State report to Commission |
MSFD Article | Art. 11 Monitoring programmes (and Art. 17 updates) |
Report due | 2020-10-15 |
GES Descriptor | D4 Food webs/D1 Ecosystems |
Member State | Netherlands |
Region/subregion | NE Atlantic: Greater North Sea |
Reported by | Rijkswaterstaat Water, Verkeer en Leefomgeving Zuiderwagenplein 2 8224 AD Lelystad Postbus 2232 3500 |
Report date | 2020-11-17 |
Report access |
Descriptor |
D4/D1 |
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Monitoring strategy description |
The principal purpose of the MSFD monitoring programme is to review the progress that has been made towards achieving good environmental status prescribed for each criterion in the Marine Strategy Part I (2018). This review is based on established indicators. The monitoring can also be used to evaluate the environmental targets defined for each descriptor. The environmental targets are operational in nature and are linked to specific actions and/or measures in the Marine Strategy Part 3. The effects of individual measures cannot generally be linked directly to environmental status or the criteria. Monitoring data can, however, indirectly give an indication of the effectiveness of measures.
The monitoring (methods, spatial and temporal coverage) aims to achieve sufficient statistical confidence in the assessment. The risk of not achieving GES or deterioration from GES is addressed in the Marine Strategy, Parts 1 and 3.
The European Commission requests that the electronic reports explain how the DPSIR cycle is monitored and to which part of the cycle the monitoring surveys are linked. The MSFD monitoring programme helps to generate better insight into the relationships between the use of the sea and the marine ecosystem. This can be accomplished by monitoring pressures and the underlying activities (D1C1: incidental bycatch, D2: non-indigenous species, D3C1: fish mortality, D5: eutrophication, D6C1/D6C4: physical loss of seabed/habitats and D6C2: fisheries intensity and sand extraction, D8 and D9: pollutants, D10: litter, D11: underwater noise), and by monitoring species and habitats (D1: biodiversity (with the exception of D1C1), D3C2: spawning stock biomass, D4: food web, D6C3/D6C5: habitats ) and hydrographical characteristics (D7). The numerous relationships between the various elements of the marine ecosystem are complex, and many are still not known. Consequently, it is often only possible to give an indication of the impact of specific activities on the marine ecosystem.
Experts generally derive DPSIR relationships from the monitoring of pressures/activities and of species and habitats (from the MSFD monitoring programme), in combination with data derived from permits and research programmes. However, some surveys have been established to measure pressures and their effects and/or to learn more about the effectiveness of measures. In designing the monitoring survey for benthic animals (habitats), the Netherlands explicitly took account of the need to |
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Coverage of GES criteria |
Adequate monitoring will be in place by 2024 |
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Gaps and plans |
D4 differs from all other descriptors. Achieving GES in other descriptors is a prerequisite for achieving GES for D4. This makes the functioning of the food web the ultimate litmus test for achieving (overall) good environmental status. In this light, although the future information requirements for D4C1 and D4C2 are not yet known, monitoring requirements can probably be met by the monitoring for other descriptors, in particular D1 (birds, fish, marine mammals) and D6 (benthos). Further expansion of the monitoring (and assessment) will be linked as far as possible to OSPAR.
For D4C3, the monitoring programme is adequate. |
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Related targets |
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Coverage of targets |
Adequate monitoring will be in place by 2024 |
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Related measures |
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Coverage of measures |
Adequate monitoring will be in place by 2024 |
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Related monitoring programmes |
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Programme code |
ANSNL-D1346-Sub3-SizeDistr |
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Programme name |
Mobile species - population characteristics |
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Update type |
Same programme as in 2014 |
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Old programme codes |
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Programme description |
D1C3:
To determine the ‘demographic characteristics´ (D1C3) of the fish population, the distribution by size of the fish community is assessed using OSPAR’s Large Fish Indicator (LFI). The necessary data are collected for the assessment of fish stocks in accordance with the CFP.
Most of the data for the OSPAR Large Fish Indicator (LFI) are derived from the International Bottom Trawl Survey (IBTS). This survey falls under the monitoring for the Common Fisheries Policy and has been operational since the end of the 1960s. For the MSFD reporting, data since 1983 are used because the monitoring survey is guaranteed to have the necessary consistency from that year. One way that consistency is ensured is through the use of the standard bottom trawl, the Grand Ouverture Verticale (GOV), which involves multiple trawls according to the principles of ‘stratified random sampling’ in the relevant ICES blocks, in principle by different member states. Every year the trawls are aggregated to calculate the indices (ICES, 2012). The IBTS monitoring survey registers at least the species and size of every fish that is caught.
The Dutch contribution to the IBTS falls under the Statutory Research Task (WOT) for Fisheries and the Data Collection Framework (DCF). This monitoring is conducted annually, in cooperation/coordination? with other countries, at the Greater North Sea level. ICES coordinates the monitoring and is responsible for the necessary quality assurance and quality control. An additional quality assurance and quality control process has been incorporated for calculations for this indicator (Moriarty, 2017, Greenstreet, 2017).
There are no changes in the monitoring compared with the MSFD monitoring programme in 2014.
D4C3:
The size structure in trophic guilds is measured in relation to the fish community and is expressed in terms of ‘typical length’.
The size structure of fish is monitored with the International Bottom Trawl Survey (IBTS) as part of the monitoring for the CFP. This monitoring survey has been operational since the end of the 1960s, however, only data that have been collected since 1983 are used for MSFD reporting, since the necessary consistency in the monitoring can only be guaranteed from that year. The survey employs the stratified random sampling method, with multiple trawls in each relevant ICES area, in principle carried out by different member states. At least the species and size of each fish caught is registered. The Netherlands contrib |
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Monitoring purpose |
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Other policies and conventions |
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Regional cooperation - coordinating body |
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Regional cooperation - countries involved |
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Regional cooperation - implementation level |
Joint data collection |
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Monitoring details |
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Features |
Coastal fish
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Deep-sea fish
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Demersal shelf fish
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Pelagic shelf fish
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Shelf ecosystems
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Elements |
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GES criteria |
D1C3 |
D1C3 |
D1C3 |
D1C3 |
D4C3 |
Parameters |
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Parameter Other |
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Spatial scope |
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Marine reporting units |
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Temporal scope (start date - end date) |
1983-9999 |
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Monitoring frequency |
Yearly |
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Monitoring type |
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Monitoring method |
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Monitoring method other |
Size distribution is not a standard parameter yet, however, the required data for the assessment is available through the regular surveys that are done for the DCF. Additional analyses of the data are necessary. The required data can be derived from the current database and based on this information the size distribution can be determined. |
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Quality control |
Fish stocks are monitored by experienced researchers in accordance with internationally agreed working methods. . ICES coordinates the monitoring and the quality assurance and quality control. An additional Quality Assurance/Quality Control procedure is incorporated for the calculation of this indicator (D4C3). |
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Data management |
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Data access |
www.ices.dk |
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Related indicator/name |
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Contact |
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References |
Greenstreet S.P.R. & Moriarty M. (2017) Manual for Version 3 of the Groundfish Survey Monitoring and Assessment Data Product. Scottish Marine and Freshwater Science Vol 8 No 18.Greenstreet S.P.R. & Moriarty M. (2017) OSPAR Interim Assessment 2017 Fish Indicator Manual (Relating to 587 Version 2 of the Groundfish Survey Monitoring and Assessment Data Product). |