Lake trout demographics in relation to burbot and coregonine populations in the Algonquin Highlands, Ontario
Environmental Biology of Fishes
By: L.M. Carl
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Abstract
The objective of the study was to test the hypothesis that lake trout populations change in relation to cisco, lake whitefish, round whitefish and burbot populations in lakes in the Algonquin Highlands region of Ontario. Lake trout population change is greatest where cisco and lake whitefish are present. Lake trout populations in lakes without either coregonine tend to have small adults and many juveniles. Where cisco or lake whitefish are present, adult lake trout are large, juvenile abundance is low, and the stock-recruit relationship appears to be uncoupled likely due to a larval bottleneck. Lake trout populations in these lakes may be sensitive to overfishing and recruitment failure. Lake trout populations do not appear to change in relation to round whitefish. There appears to be an indirect positive change on juvenile lake trout abundance through reductions in the density of benthic coregonines in the presence of large, hypolimnetic burbot. ?? 2007 Springer Science+Business Media B.V.
Suggested Citation
Carl, L., 2008, Lake trout demographics in relation to burbot and coregonine populations in the Algonquin Highlands, Ontario: Environmental Biology of Fishes, v. 83, no. 2, p. 127-138, https://doi.org/10.1007/s10641-007-9305-7.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Lake trout demographics in relation to burbot and coregonine populations in the Algonquin Highlands, Ontario |
| Series title | Environmental Biology of Fishes |
| DOI | 10.1007/s10641-007-9305-7 |
| Volume | 83 |
| Issue | 2 |
| Publication Date | December 18, 2007 |
| Year Published | 2008 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Environmental Biology of Fishes |
| First page | 127 |
| Last page | 138 |