The influence of suspended particles on the acute toxicity of 2-chloro-4-nitro-aniline, cadmium, and pentachlorophenol on the valve movement response of the zebra mussel (Dreissena polymorpha)

被引：33

作者：

Borcherding J. ^{[1
]}

Wolf J. ^{[1
,2
]}

机构：

[1] Zoological Inst. Univ. of Cologne, Dept. of Gen. Ecology and Limnology, Ecol. Field Station Grietherbusch

[2] Borcherding and Volpers GbR, ENVICONTROL, 50825 Köln

来源：

Archives of Environmental Contamination and Toxicology | 2001年 / 40卷 / 4期

关键词：

Water Quality; Bentonite; Suspended Particle; Warning System; Continuous Monitoring;

D O I：

10.1007/s002440010202

中图分类号：

学科分类号：

摘要：

The Dreissena-Monitor is a biological early warning system for the continuous monitoring of river water quality, based on the valve movements of two groups of 42 zebra mussels (Dreissena polymorpha). Laboratory experiments with Cd, PCP, and 2-chloro-4-nitro-aniline were conducted in combination with suspended particles (a mixture of stinging nettle powder, bentonite, and quartz powder). An increase of suspended particles up to a nominal concentration of 540 mg/L within 5 min did not evoke any reactions by the mussels significantly different from normal. The distribution between water and solids was analyzed for Cd and 2-chloro-4-nitroaniline, with the result that the former quickly adsorbed to the particles, whereas the latter did not bind to the particles at all. The behavior of the zebra mussels revealed that the detection of 2-chloro-4-nitro-aniline was not affected by the presence of suspended matter. In the cases of Cd and PCP, D. polymorpha was able to detect these substances when they were particle-associated at least as well or better as when they were dissolved in the water. The results are discussed with respect to the physiology of the organisms and the bioavailability of toxicants, as well as to the consequences these results may have under field conditions.

引用

页码：497 / 504

页数：7

共 34 条

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