Record Display for the EPA National Library Catalog
RECORD NUMBER: 7 OF 7| Main Title | Susceptibility of Steelhead Trout 'Salmo gairdneri' Richardson to Redmouth Infection 'Yersinia ruckeri' Following Exposure to Copper. | |||||||||||
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| Author | Knittel, M. D. ; | |||||||||||
| CORP Author | Corvallis Environmental Research Lab., OR. | |||||||||||
| Year Published | 1981 | |||||||||||
| Report Number | EPA-600/J-81-600; | |||||||||||
| Stock Number | PB83-140780 | |||||||||||
| Additional Subjects | Copper ; Fishes ; Concentration(Composition) ; Bacteria ; Susceptibility(Physiology) ; Reprints ; Heavy metals ; Water pollution effects(Animals) ; Salmo gairdneri ; Yersinia ruckeri | |||||||||||
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| Collation | 10p | |||||||||||
| Abstract | Steelhead trout were exposed to sublethal concentrations of copper and inoculated with Yersinia ruckeri. Copper exposure at 7 and 10 micrograms/1 for 96 h caused more fish to die of infection than control fish (no copper). Infection susceptibility increased with time of exposure to a single dosage of copper (10 micrograms/1), reaching a maximum at 48 h. Lowering the copper concentration to 5 micrograms/1 caused the infection susceptibility to occur at 24 h. The infectious dose of Y. ruckeri was lower in fish exposed to 10 micrograms/1 copper for 48 h than control fish. |