Abstract. In four 0.8-ha drainable ponds the production, growth, condition and angling vulnerability of zander (<45cm) were studied in relation to the availability of forage fish (cyprinids > 15cm). The experiments look place in the period April-October 1986. The P:Bü ratios of zander in two ponds with an average biomass of forage fish (282 kg) 3.5 times the mean biomass of zander(.80kg), were 0.17 and 0.28. In two ponds with an average biomass of forage fish (38kg) 0.58 times the mean biomass of zander (65 kg), P:Bü ratios were 0.02 and 0.06. The growth and condition responses of individual zander were highly variable within each pond. Effects of sex were not observed on these responses. In June 1986 the angling vulnerability of zander was negatively related with the availability of forage fish. In August-September 1986 no differences in angling vulnerability were observed between the zander in the four ponds. The male and female zander were equally exploited by anglers. The captures of zander were not related with the size or weight of the fish.