Factors affecting swimming performance of fasted rainbow trout with implications of exhaustive exercise on overwinter mortality
Journal of Freshwater Ecology
By: D.G. Simpkins, W.A. Hubert, Del Rio, and D.C. Rule
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Abstract
We evaluated the effects of body size, water temperature, and sustained swimming activity on swimming performance and the effects of exhaustive exercise on mortality of fasted juvenile rainbow trout. Fasting caused swimming performance to decline more rapidly for small fish than large fish, and warmer water temperatures and sustained swimming activity further decreased swimming performance. Exhaustive exercise increased mortality among fasted fish. Our observations suggest that juvenile rainbow trout with little or no food intake during winter can swim for long periods of time with little effect on mortality, but swimming to exhaustion can enhance mortality, especially among the smallest juveniles.
Suggested Citation
Simpkins, D., Hubert, W., Rio, D., and Rule, D., 2004, Factors affecting swimming performance of fasted rainbow trout with implications of exhaustive exercise on overwinter mortality: Journal of Freshwater Ecology, v. 19, no. 4, p. 657-666, https://doi.org/10.1080/02705060.2004.9664748.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Factors affecting swimming performance of fasted rainbow trout with implications of exhaustive exercise on overwinter mortality |
| Series title | Journal of Freshwater Ecology |
| DOI | 10.1080/02705060.2004.9664748 |
| Volume | 19 |
| Issue | 4 |
| Year Published | 2004 |
| Language | English |
| Publisher | Taylor & Francis Online |
| Contributing office(s) | Wyoming Cooperative Fish and Wildlife Research Unit |
| Description | 10 p. |
| First page | 657 |
| Last page | 666 |