Some factors influencing susceptibility of rainbow trout to the acute toxicity of an ethyl mercury phosphate formulation (Timsan)
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Abstract
This study determined the influence of water temperature (55–68° F), dissolved oxygen (4–12 ppm), water hardness as CaCO3 (20–256 ppm), and chloride ions (to 2 mM) on the susceptibility of rainbow trout (Salmo gairdneri) to the acute toxicity of ethyl mercury phosphate (EMP). The fish were exposed for one hour to 0.125 ppm EMP, the active ingredient of Timsan, a commercial EMP formulation. The death rate because of the exposure to EMP increased with an increase in water temperature, a decrease in dissolved oxygen, and an increase in chloride ions; calcium appeared to have no effect. The effect of water temperature and dissolved oxygen was ascribed to changes in the respiration rate of the fish, and a chemical explanation is presented for the effect of chloride ions.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Some factors influencing susceptibility of rainbow trout to the acute toxicity of an ethyl mercury phosphate formulation (Timsan) |
| Series title | Transactions of the American Fisheries Society |
| DOI | 10.1577/1548-8659(1969)98[419:SFISOR]2.0.CO;2 |
| Volume | 98 |
| Issue | 3 |
| Year Published | 1969 |
| Language | English |
| Publisher | American Fisheries Society |
| Description | 7 p. |
| First page | 419 |
| Last page | 425 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |