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Control of nuisance populations of crayfish with traps and toxicants

Progressive Fish-Culturist

By:
and

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Abstract

Crayfish have long been a nuisance in fish-rearing ponds at fish hatcheries. The rusty crayfish (Orconectes rusticus ) has displaced endemic species and caused serious declines of aquatic plants in some ponds and lakes in the midwestern USA. The authors attempted to evaluate the effect of intensive trapping on a crayfish population and to identify a selective chemical control agent and evaluate its effectiveness under field conditions. A crayfish population in a small pond was suppressed but not eliminated by trapping: adults were effectively harvested but efficiency diminished sharply as the population declined. Of 19 chemicals tested as possible control agents for crayfish, a synthetic pyrethroid (Baythroid) was by far the most toxic; 25 mu g/L produced a complete kill of crayfish in the pond and was also the most selective for crayfish in laboratory tests.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Control of nuisance populations of crayfish with traps and toxicants
Series title:
Progressive Fish-Culturist
Volume
50
Issue:
2
Year Published:
1988
Language:
English
Contributing office(s):
Upper Midwest Environmental Sciences Center
Description:
pp. 103-106
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Progressive Fish-Culturist
First page:
103
Last page:
106
Number of Pages:
4