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September 5, 2025Open Access

Live fast and die young: walleye populations adapt their life cycle to degraded lakes of the Canadian clay belt.

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Comparative analysis shows altered population structure and dietary composition of walleye in degraded lakes, indicating ecological impacts.

Young-of-the-year walleye are more abundant in degraded lakes, with faster growth rates.
Degraded lakes support high populations of spring zooplankton, critical for larval walleye development.
Juvenile and adult walleye populations are stable in degraded environments, yet face risks from premature mortality.
Enhancing adult fish habitat is essential for stable walleye populations in degraded ecosystems.

Blaney et al. (2025) studied this question.

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Comparative analysis shows altered population structure and dietary composition of walleye in degraded lakes, indicating ecological impacts.