Isobornyl thiocyanoacetate (Thanite) is an insecticide that induces a surfacing response in fish and therefore has been considered to have potential as a fish collection agent. Analyses for residues of Thanite in carp (Cyprinus carpio) and largemouth bass (Micropterus salmoides) exposed to chemical yielded only a trace of the parent compound. A metabolite, isobornyl a-(methylthio)acetate, was isolated and indentified by GC-MS,and a reference standard for the metabolite was synthesized. Residues of the metabolite were present in largemouth bass muscle tissue within 1 h after exposure to Thanite. The metabolite was also observed in the muscle, blood plasma, and bile of carp. Residues of the metaboliteare rapidly elimanated after the fish are transferred to Thanite-free water. Residues of Thanite in water, algae, and from soil from ponds treated with Thanite declined to undetectable levels within 28 days after treatment.
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Residues of isobornyl thiocyanoacetate (Thanite) and a metabolite in fish and treated ponds