Feeding of freshwater cyclopoid copepod Acanthocyclops robustus on zooplankton was examined by aseries of feeding experiments during August-September of 1993. Study results showed A. robustus can cap-ture and eat all ...Feeding of freshwater cyclopoid copepod Acanthocyclops robustus on zooplankton was examined by aseries of feeding experiments during August-September of 1993. Study results showed A. robustus can cap-ture and eat all type items provided from the Staly Haklovsky fishpond, a shallow eutrophic water bodynear Budejovice City, Czech Republic. Selation by the predator was determined largely by prey body-sizeand density, but was also affected by prey types. Variable but significant changes in feeding rates werefound in various size distribution and concentration of prey types. Percentages of small (80-235μm)andlarge (445-6l0μm) prey consumed were 42.47 and 3.85%, respectively.Starvation did not cause statisticallysignificant difference. The feeding on Ceriodaphnia quadrangula showed significant difference between largeand small prey.Feeding rate increased with increasing prey concentration.展开更多
文摘Feeding of freshwater cyclopoid copepod Acanthocyclops robustus on zooplankton was examined by aseries of feeding experiments during August-September of 1993. Study results showed A. robustus can cap-ture and eat all type items provided from the Staly Haklovsky fishpond, a shallow eutrophic water bodynear Budejovice City, Czech Republic. Selation by the predator was determined largely by prey body-sizeand density, but was also affected by prey types. Variable but significant changes in feeding rates werefound in various size distribution and concentration of prey types. Percentages of small (80-235μm)andlarge (445-6l0μm) prey consumed were 42.47 and 3.85%, respectively.Starvation did not cause statisticallysignificant difference. The feeding on Ceriodaphnia quadrangula showed significant difference between largeand small prey.Feeding rate increased with increasing prey concentration.
