Zooplankton data (density, biomass, respiration, production, grazing) and chlorophyll a measurements in the Sluice Dock sampled between 1968 and 1972. The data were digitized by VLIZ from the original report: Polk-Daro, M.H. (1974). De rol van het zooplankton in de ekologie van de Spuikom te Oostende. PhD Thesis. Vrije Universiteit Brussel: Brussel. 2 vol. Pp.