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Science 25 April 1969:
Vol. 164. no. 3878, pp. 440 - 441
DOI: 10.1126/science.164.3878.440
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Articles

DDT: Sublethal Effects on Brook Trout Nervous System

John M. Anderson 1 and Margaret R. Petersont 1

1 Department of Biology, Carleton University, Ottawa, Canada

When brook trout are exposed for 24 hours to sublethal doses of DDT, the cold-blocking temperature for a simple reflex, which shows lability related to thermal history, is altered in a way suggesting that DDT is aflecting the thermal acclimation mechanism. Sublethal dosage of DDT also prevents the establishment of a visual conditioned avoidance response.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)