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THE OCCURRENCE OF CHARACTERISTIC DEFORMITIES IN THE CHIRONOMID LARVAE OF SEVERAL CANADIAN LAKES

Published online by Cambridge University Press:  31 May 2012

Andrew L. Hamilton  and
Ole A. Saether
Andrew L. Hamilton
Affiliation:
Freshwater Institute, Fisheries Research Board of Canada, Winnipeg, Manitoba
Ole A. Saether
Affiliation:
Freshwater Institute, Fisheries Research Board of Canada, Winnipeg, Manitoba
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Abstract

Severely deformed chironomid larvae have been collected in Lake Erie and two lakes in the Okanagan valley of British Columbia. Deformed larvae had very aberrant mouthparts and the head capsules were usually heavily pigmented. In most cases both the head capsule and body wall were many times thicker than in normal specimens. These deformities are apparently caused by pollutants and it is speculated that agricultural and/or industrial chemicals may be responsible.

Type
Articles
Information
The Canadian Entomologist , Volume 103 , Issue 3 , March 1971 , pp. 363 - 368
Copyright
Copyright © Entomological Society of Canada 1971

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References

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