Comparative Sensitivity of Some Representatives of Zooplankton (Cladocera, Copepoda) Sumicidin-Alpha Insecticide
Ya. A. Noskov
Institute of Systematics and Ecology of Animals SB RAS
yuranoskov@mail.ru
Keywords: esphenvalerate, zooplankton, D. magna, toxicity, distribution of species sensitivity
Pages: 497-503
Abstract
Investigation of the sensitivity of seven zooplankton species Daphnia magna, D. longispina, D. pulex, Simocephalus vetulus, Scapholeberis mucronаta, Eudiaptomus graciloides, Cyclops strenuus to sumicidin-alpha insecticide was carried out. The values of LC50 for 24 h exposure were determined. The most sensitive species turned out to be Daphnia pulex and D. longispina, the least sensitive ones - representatives of natural population of Daphnia magna. The data on the distribution of zooplankton species sensitivity are presented. The concentrations potentially dangerous for 5 and 50 % of species in the community were calculated.
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