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Accumulation of the organophosphate blackfly larvicide Abate (temephos) in Sarotherodon mossambicus , with reference to the larvicidal control of Simulium damnosum
Author(s) -
Matthiesen P.,
Johnson J. S.
Publication year - 1978
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1978.tb03470.x
Subject(s) - larvicide , biology , organophosphate , onchocerciasis , larva , toxicology , pesticide , tilapia , fish <actinopterygii> , fishery , veterinary medicine , ecology , medicine , aedes aegypti , immunology
This paper describes the uptake and fate of the organophosphate larvicide Abate (temephos) in the tropical food fish, Sarotherodon mossambicus (Peters), during exposure to concentrations (nominally 0.001–0.1 mg dm −3 ) similar to those being produced in West African rivers by the WHO Onchocerciasis Control Programme. S. mossumbicus was able to absorb Abate both directly from the surrounding water, and by contaminated food. Maximum residue concentrations were proportional to dosage and were elevated in starving fish. Internal distribution depended on tissue fat content. Some fish produced the sulphoxide metabolite, and total residues diminished slowly during recovery.