Warm river habitats appear to play a larger than expected role supporting the survival of cold-water fish, such as salmon and trout, a new Oregon State University-led study published today found.
The research has important implications for fish conservation strategies. A common goal among scientists and policymakers is to identify and prioritize habitat for cold-water fish that remains suitably cool during the summer, especially as the climate warms.
This implicitly devalues areas that are seasonally warm, even if they are suitable for fish most of the year, said Jonny Armstrong, lead author of the paper and an ecologist at Oregon State. He called this a “potentially severe blind spot for climate change adaptation.”
Read more at: Oregon State University
Arctic grayling in ephemerally warm lake outlet, Little Togiak River, Alaska. (Photo Credit: Jonny Armstrong)