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Abstract
The potential for competition for food between larval lake whitefish (Coregonus clupeaformis) and lake herring (C. artedi) 1- to 8-wk of age was explored in a series of 1-h laboratory feeding studies. Feeding started at 2-wk post-hatch. Learning and fish size appear to be more important than prey density at the onset of feeding. Species differed in their feeding behavior and consumption noticeably by 5-wk and substantially by 8-wk. Lake whitefish generally were more aggressive foragers than lake herring, attacking and capturing more prey. At high plankton density at 8-wk, lake herring feeding was depressed in mixed-fish treatments. This difference in competitive food consumption between the two coregonids occurs at a critical life stage, and when combined with other biotic and abiotic factors, may have a significant impact on recruitment.
| Publication type | Book chapter |
|---|---|
| Publication Subtype | Book Chapter |
| Title | Feeding competition between larval lake whitefish and lake herring |
| Year Published | 1995 |
| Language | English |
| Publisher | E. Schweizerbart'sche Verlagsbuchhandlung |
| Publisher location | Stuttgart, Germany |
| Contributing office(s) | Great Lakes Science Center |
| Description | p. 153-162 |
| Larger Work Type | Book |
| Larger Work Subtype | Other Government Series |
| Larger Work Title | Biology and Management of Coregonid Fishes -- 1993 |
| First page | 153 |
| Last page | 162 |
| Google Analytic Metrics | Metrics page |