The effect of parasitism on the toxicity of cadmium to the three-spined stickleback, Gasterosteus aculeatus L. |
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| Authors: | D. Pascoe P. Cram |
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| Affiliation: | Department of Applied Biology, University of Wales Institute of Science &Technology, Cathays Park, Cardiff |
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| Abstract: | The toxicity of cadmium to sticklebacks was determined over a wide range of concentrations. The 96 h LC50 was found to be 6.5 mg Cd I−1. The shape of the time-concentration curve suggests that cadmium may have two toxic mechanisms. The median period of survival for fish infected with the plerocercoids of the cestode, Schistocephalus solidus , was found to be considerably shorter than for non-parasitized fish. This observation is considered in the light of the known effects of 5. solidus on its host. |
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