Evidence of a temperature–oxygen squeeze within floodplain thermal refuge habitats
Hannah Barrett,
Stanley Gregory,
Jonathan Armstrong
Abstract:Vertical heterogeneity in lakes and estuaries can present cold‐adapted fishes with a temperature–oxygen squeeze, such that the epilimnion is stressfully warm and the cooler hypolimnion is hypoxic, thereby restricting fishes to the metalimnion. In temperate floodplain rivers, patches of lentic habitat (e.g., alcoves) have the potential to provide thermal refuge for cold‐water fishes during summer, but little is known about whether these smaller habitat features present fish with temperature–oxygen constraints. … Show more
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