Effects of freshwater exposure to arsenic trioxide on the parr-smolt transformation of coho salmon (Oncorhynchus kisutch)
Environmental Toxicology and Chemistry
By: J.W. Nichols, Gary Wedemeyer, F.L. Mayer, Walton W. Dickhoff, S.V. Gregory, W. T. Yasutake, and S.D. Smith
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Abstract
The effects of chronic (6 months) exposure to arsenic trioxide in fresh water on the Parr-smolt transformation of coho salmon (Oncorhynchus kisutch) were evaluated. Exposure to 300 μg As/L (as As2O3) appeared to delay the onset of the normal increase in plasma thyroxine concentration and cause a transient reduction of gill Na+,K+-ATPase activity. Fish exposed to 300 μg As/L also migrated to the sea less successfully than did nonexposed smolts, but there were no effects on the survival and growth of smolts held in 28‰ salt water for 6 months.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Effects of freshwater exposure to arsenic trioxide on the parr-smolt transformation of coho salmon (Oncorhynchus kisutch) |
| Series title | Environmental Toxicology and Chemistry |
| DOI | 10.1002/etc.5620030116 |
| Volume | 3 |
| Issue | 1 |
| Year Published | 1984 |
| Language | English |
| Publisher | Elsevier Science |
| Contributing office(s) | Western Fisheries Research Center |
| Description | 8 p. |
| First page | 143 |
| Last page | 149 |
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