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The Response of Coho Salmon and Guppies to 2,3,7,8‐tetrachlorodibenzo‐p‐dioxin (TCDD) in Water
Author(s) -
Miller Richard A.,
Norris Logan A.,
Loper Bobby R.
Publication year - 1979
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1979)108<401:trocsa>2.0.co;2
Subject(s) - tetrachlorodibenzo p dioxin , fishery , zoology , biology , environmental science , chemistry , toxicity , organic chemistry
TCDD exposure for 96 hours at 0.54 ng/g (amount of TCDD in test container per gram of wet body weight) had no effect on food consumption, weight gain, or survival of young coho salmon (Oncorhynchus kisutch) during a 60‐day postexposure period in a static‐water toxicity test. Growth and survival 114 days after exposure to 5.4 ng/g TCDD were reduced, and the reductions were greater after 24 hours than after 12 hours exposure to TCDD. These effects were first observed 56 days after exposure. The body burden of TCDD in young coho salmon 114 days after exposure increased with both the level and duration of exposure. The half‐life of the whole‐body TCDD residues was at least 109 days after fish were placed in clean water. Guppies (Poecilia reticulata) exposed to 0.8 ng TCDD/g developed fin disease 42 days after exposure. There was a significant decrease in the diseased fin condition between 42 to 69 days after exposure. Guppies had no increase in fin disease after exposure to 0.08 ng/g TCDD.