Beyond latitude: thermal tolerance and vulnerability of a broadly distributed salmonid across a habitat temperature gradient.

ABSTRACT: Salmonid fishes are a focal point of conservation physiology due to their high value to humans and ecosystems, and their susceptibility to decline from climate change. A significant challenge in conserving these fishes is that populations of the same species can be locally adapted to vastly different habitats within their wild ranges and can therefore have unique tolerance or vulnerability to environmental stressors within those habitats. Within the state of Oregon, USA, summer steelhead (Oncorhynchus mykiss) inhabit both cool, coastal waters most typically associated with Pacific salmonids and arid, inland environments where temperatures are more extreme. Here, we utilized streamside physiological experiments paired with habitat temperature monitoring to assess the thermal toleranc

SUBMITTER: Dressler TL 

PROVIDER: S-EPMC12043440 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature