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EFFECT OF FOREST SPRAYING WITH ACEPHATE INSECTICIDE ON CONSUMPTION OF SPIDERS BY BROOK TROUT (SALVELINUS FONTINALIS)1

Published online by Cambridge University Press:  31 May 2012

Susan B. Hydorn ,
Charles F. Rabeni  and
Daniel T. Jennings
Susan B. Hydorn
Affiliation:
Maine Cooperative Fisheries Unit and U.S. Department of Agriculture, Northeastern Forest Experiment Station, University of Maine, Orono, Maine 04469
Charles F. Rabeni
Affiliation:
Maine Cooperative Fisheries Unit and U.S. Department of Agriculture, Northeastern Forest Experiment Station, University of Maine, Orono, Maine 04469
Daniel T. Jennings
Affiliation:
Maine Cooperative Fisheries Unit and U.S. Department of Agriculture, Northeastern Forest Experiment Station, University of Maine, Orono, Maine 04469
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Abstract

Stomachs of mature brook trout, Salvelinus fontinalis Mitch., from sprayed and unsprayed streams were analyzed for arthropods. Within 48 h after exposure to aerial applications of 560 g/ha acephate (Orthene®) against spruce budworm, Choristoneura fumiferana (Clem.), fish consumed many more spiders and other arthropods. Caged spiders in an acephate-sprayed forest behaved abnormally and had low survival.

Type
Articles
Information
The Canadian Entomologist , Volume 111 , Issue 10 , October 1979 , pp. 1185 - 1192
Copyright
Copyright © Entomological Society of Canada 1979

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