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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Ref ID : 111

A. Fernandez-Casalderrey, M.D. Ferrando, and E. Andreu-Moliner; Acute toxicity of several pesticides to rotifer (Brachionus calyciflorus). Bull.Environ.Contam.Toxicol. 48:14-17, 1992

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The use of insecticides and herbicides is increasing very rapidly in agriculture and pisciculture in order to control unwanted insects and weeds. The unlimited use of these chemicals is deteriously affecting the aquatic biota. The majority of short-term acute toxicity studies under controlled conditions have used either fish or the cladoceran Daphnia magna, but there are limited studies using rotifers only with insecticides, with heavy metals and with free ammonia. Brachionus calyciflorus is particularly useful for environmental toxicology because of its rapid reproduction, short generation time, cosmopolitan distribution and the commercial availability of its dormant eggs (cysts). Our objectives in this paper are to determine the acute toxicological effects of several pesticides (endosulfan, diazinon, methylparathion, malathion and benthiocarb) on B. calyciflorus.