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Gridded abundance maps of chlorophyll a around the Dutch coast
Flanders Marine Institute (VLIZ); Royal Netherlands Institute for Sea Research (NIOZ); (2015): Gridded abundance maps of chlorophyll a around the Dutch coast; European Marine Observation Data Network (EMODnet) Biology project (, funded by the European Commission’s Directorate - General for Maritime Affairs and Fisheries (DG MARE).

Data products

Gridded abundance product representing chlorophyll-a values in the Dutch North Sea from 1976 till 2014. Chlorophyll –a can be interpreted as a proxy for phytoplankton. The resulting values vary seasonally. The winter concentrations are lower because low light and temperature are not optimal for phytoplankton growth. In spring we observe the highest concentrations occurring in near coastal waters where nutrients from rivers are most abundant. Phytoplankton organisms are responsible for about 45% of annual global photosynthesis. They are as such vital for the functioning of marine food webs (considered in MSFD descriptor 4) and are the main drivers of the global biogeochemical cycles. This product was developed with DIVA (Data-Interpolating Variational Analysis) and the scale is log-transformed abundance (in µg per liter). Data was provided by Rijkswaterstaat (RWS).

Biology > Phytoplankton, Biology > Pigments (e.g. chlorophyll)
Marine, ANE, Netherlands, Dutch Continental Shelf

Geographical coverage
ANE, Netherlands, Dutch Continental Shelf [Marine Regions]

Temporal coverage
1976 - 2014

Koninklijk Nederlands Instituut voor Onderzoek der Zee (NIOZ), moredata creator Vlaams Instituut voor de Zee (VLIZ), moredata creator

Used in this dataset:
Baretta-Bakker, J.G. et al. (2009). Description of the long-term (1991–2005) temporal and spatial distribution of phytoplankton carbon biomass in the Dutch North Sea. J. Sea Res. 61(1-2): 50–59., more

Dataset status: Completed
Data type: Data products
Data origin: Monitoring: field survey
Metadatarecord created: 2016-10-07
Information last updated: 2016-10-18
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