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Toxicity of tri-n-butyl-tin to chinook salmon, Oncorhynchus tshawytscha, adapted to seawater

descriptionPublicationkeyboard_double_arrow_right Article 01 Apr 1987 English Publisher:Elsevier BVJournal:Aquaculture, volume 61, pages 193-200 (issn: 0044-8486,

Authors: Short, Jeffrey W.; Thrower, Frank P.;

doi: 10.1016/0044-8486(87)90148-7

Toxicity of tri-n-butyl-tin to chinook salmon, Oncorhynchus tshawytscha, adapted to seawater

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Abstract

Abstract The median lethal concentrations (LC50s) of tri-n-butyl-tin oxide (TBTO) to juvenile chinook salmon, Oncorhynchus tshawytscha, adapted to seawater were determined in a static renewal bioassay. LC50s were 54, 20, and 1.5 μg TBTO/l after exposures for 6, 12, and 96 h, respectively. LC50s decreased logarithmically with time for exposures between 12 and 96 h. Also determined were the average tri-n-butyl-tin (TBT) concentrations in liver, brain, and muscle tissues of salmon that died during the bioassay: 7.0, 3.5, and 0.52 μg TBT/g wet weight tissue, respectively. TBT concentrations in liver, brain, and muscle tissues of salmon that survived until day 4 of the bioassay were 4300, 1300, and 200 times exposure concentrations, respectively. Our results implicate TBT exposure as the cause of death of chinook salmon exposed to TBT-treated marine net pens at one aquaculture facility.

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National Oceanic and Atmospheric Administration
United States
National Marine Fisheries Service
United States

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Long-term effects of tri-n-butyl-tin on the function of a marine sediment system
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