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Effect of Aldrin on Life History Characteristics of Rotifer Brachionus calyciflorus Pallas.

Huang L, Xi YL, Zha CW, Zhao LL

College of Life Sciences, Anhui Normal University, Provincial Key Laboratories of Conservation and Utilization for Important Biological Resource in Anhui and Biotic Environment and Ecological Safety, 241000, Wuhu, Anhui, China, ylxi1965@yahoo.com.cn.

The organochlorine insecticide aldrin is commonly used in intensive agriculture, and demonstrates estrogenic activity. Rotifers such as Brachionus calyciflorus are favored test animals in aquatic toxicology because of their more sensitivity to most toxicants. In the tested concentration range of 0.04-1.28 mg/L, aldrin shortened significantly the durations of embryonic development. Lower concentrations of aldrin had an intriguing effect on the reproduction of the rotifers and are beneficial to their survival. Different endpoints of both development and reproduction had different sensitivity to aldrin. The reproductive endpoint of the rotifers is more sensitive to aldrin than the developmental endpoint.

Published 21 November 2007 in Bull Environ Contam Toxicol, 79(5): 524-8.
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