A History of the Effects of Aerial Forest Spraying in Canada on Aquatic Fauna
Problem Addressed: Pesticide spraying
Key Findings: Much progress has been made in discovering and eliminating undesirable side-effects of forest insect control operation in Canada on aquatic ecosystems, however, the role of many factors related to insecticide toxicity and side-effects still remain vague.
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- Kinsgbury, P.D.
Environment Canada Forestry Service
Throughout the history of aerial chemical control operation in Canada, insecticides have been interacting with aquatic ecosystems. The vast forested areas which have been the sites of these operations are scattered with rivers, lakes and streams, and insecticides have been introduced into watersheds containing the breeding and rearing areas of important commercial and sport fishing stocks, particularly of salmonoid fish. The effects of insecticides on these fish populations and the ecology of their habitat has frequently resulted in conflict between forestry and fishery interests within an area.
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