Abundances and densities of phytoplankton species at Flemish (Negenvaam, Buiten Ratel and Oost Dyck) and Western Coastal Banks (Grote Rede) sampled between 1977 and 1978. The data are digitized from technical reports in the frame of the 4DEMON project.

Phytoplankton abundances and cell counts for 11 stations in the Southern Bight of the North Sea sampled in January, June and July 1971.The data are digitized from technical reports in the frame of the 4DEMON project.

Qualitative study on phytoplankton species found in the western North Sea between 1976 and 1977. The data were digitized from technical reports in the frame of the 4DEMON project.

Abundance of phytoplankton species and related environmental parameters for 57 stations in the Southern Bight of the North Sea between January 1971 and June 1973. The data were digitized from technical reports in the frame of the 4DEMON project.

Quantitative and qualitative analysis of phytoplankton species found between 1968-1970 in the North Sea and Northeast Atlantic Ocean. The data were digitized in the frame of the 4DEMON project and LifeWatch.

Abundance of phytoplankton species and related environmental parameters for 8 zones in the Southern North Sea between October 1974 and October 1978. The data were digitized from technical reports in the frame of the 4DEMON project.

Phytoplankton abundances and cell counts for 10 stations in the Scheldt estuary on March, 19 in 1974. The data are digitized from technical reports in the frame of the 4DEMON project.

Phytoplankton abundances and cell counts for 45 stations in the Southern Bight of the North Sea between November 1973 and May 1974.The data are digitized from technical reports in the frame of the 4DEMON project.