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Doug Peterson

Salmonids (a family of fish that includes salmon, trout, and char) are a keystone species for both aquatic and terrestrial ecosystems, and can be an early warning indicator of ecosystem health. Salmonids also have strong societal values and contribute enormously to regional economies and Native American cultures. Today, many native salmonid populations are small, highly fragmented, and isolated from genetic exchange, thereby increasing their vulnerability to disturbances due to their limited ability to adapt through migration. Rising global air temperatures are altering the characteristics of aquatic ecosystems worldwide, including freshwater in the United States. Understanding the vulnerability of aquatic species...
Understanding how climate change will influence habitat for interior species of native salmonids is critical for effective management and recovery of these species. The US Department of the Interior, the US Department of Agriculture, state fisheries managers, and non-governmental organizations are increasingly challenged in attempting the recovery and restoration of native trout and salmon throughout their range. USGS scientists, in partnership with the US Forest Service and Trout Unlimited, completed a database including all existing species distributions and habitat information, and air and water temperature data for the interior West. Maps defining existing and projected future distributions of native salmonids,...
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