Laboratory evaluation of a walleye (Sander vitreus) bioenergetics model
Fish Physiology and Biochemistry
By: C.P. Madenjian, C. Wang, T. P. O’Brien, M.J. Holuszko, L.M. Ogilvie, and R.G. Stickel
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Abstract
Walleye (Sander vitreus) is an important game fish throughout much of North America. We evaluated the performance of the Wisconsin bioenergetics model for walleye in the laboratory. Walleyes were fed rainbow smelt (Osmerus mordax) in four laboratory tanks during a 126-day experiment. Based on a statistical comparison of bioenergetics model predictions of monthly consumption with the observed monthly consumption, we concluded that the bioenergetics model significantly underestimated food consumption by walleye in the laboratory. The degree of underestimation appeared to depend on the feeding rate. For the tank with the lowest feeding rate (1.4% of walleye body weight per day), the agreement between the bioenergetics model prediction of cumulative consumption over the entire 126-day experiment and the observed cumulative consumption was remarkably close, as the prediction was within 0.1% of the observed cumulative consumption. Feeding rates in the other three tanks ranged from 1.6% to 1.7% of walleye body weight per day, and bioenergetics model predictions of cumulative consumption over the 126-day experiment ranged between 11 and 15% less than the observed cumulative consumption. ?? 2008 Springer Science+Business Media B.V.
Suggested Citation
Madenjian, C., Wang, C., O’Brien, T.P., Holuszko, M., Ogilvie, L., Stickel, R., 2010, Laboratory evaluation of a walleye (Sander vitreus) bioenergetics model: Fish Physiology and Biochemistry, v. 36, no. 1, p. 45-53, https://doi.org/10.1007/s10695-008-9278-2.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Laboratory evaluation of a walleye (Sander vitreus) bioenergetics model |
| Series title | Fish Physiology and Biochemistry |
| DOI | 10.1007/s10695-008-9278-2 |
| Volume | 36 |
| Issue | 1 |
| Publication Date | November 02, 2008 |
| Year Published | 2010 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Fish Physiology and Biochemistry |
| First page | 45 |
| Last page | 53 |