Biomonitoring: cadmium deteriorates electro-orientation performance in catfish. |
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| Authors: | I S Neuman C van Rossum F Bretschneider P F Teunis R C Peters |
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| Institution: | Laboratory of Comparative Physiology, University of Utrecht, The Netherlands. |
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| Abstract: | 1. Exposure of catfish, Ictalurus nebulosus, to sublethal concentrations of cadmium deteriorates electro-orientation performance. 2. Cadmium, at a concentration of 40 micrograms/l, doubles the behavioural threshold for electric stimuli within 48 hr of exposure; both prolonged exposure and higher concentrations result in higher thresholds. The effect is reversible. 3. Electro-orientation performance can be used to monitor the quality of surface water. |
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