Author:
Colwell A. E.,Schaefer C. H.
Abstract
Diflubenzuron was applied to five experimental ponds, yielding a mean concentration of 13 μg/L. Residues in the water declined below detectable limits (0.2 μg/L) by 14 d posttreatment. Young-of-the-year black crappie (Pomoxis nigromaculatus) and brown bullhead (Ictalurus nebulosus) accumulated diflubenzuron and then eliminated all residues by 7 d posttreatment. No fish mortalities occurred after the treatment. For 1 mo following treatment, stomach content analyses indicated major alterations in the diets of the fish. Growth rates and condition factors of the fish 3 mo after treatment were similar to control fish in four untreated ponds.Key words: diflubenzuron, Pomoxis nigromaculatus, Ictalurus nebulosus, condition factor, growth, aquatic invertebrates
Publisher
Canadian Science Publishing
Subject
Aquatic Science,Ecology, Evolution, Behavior and Systematics
Cited by
20 articles.
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