Bacterial densities for 3 points sampled between March and October 1966 in the Sluice Dock and the Port of Ostend. The data were digitized by VLIZ from the original report: Persoone, G.; De Pauw, N. (1971). Contributions à l'étude des bactéries marines du littoral belge: 4. Recherche quantitative de la richesse microbienne de l'eau du bassin de chasse d'Ostende par lecture directe sur membranes filtrantes.