Abundance and biomass of Tachidius discipes life stages sampled every 3 days between 21 March and 25 June 1979 in the 'Dievengat' (Knokke). The data were digitized by VLIZ from the original report: Guillemijn, B. (1980). Levenscyclus, produktie en respiratie van Tachidius discipes Giesbrecht, 1881 (Crustacea, Copepoda) in het Dievengat (Knokke). MSc Thesis. Rijksuniversiteit Gent: Gent. 54, figures + tables pp.