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Detailed Methodology for Inland Stream Assessment for Alaska

Summary

Key elements of the 2015 national assessment of stream fish habitats follow the 2010 assessment, including: 1) the idea that distributions and numbers fishes reflect the quality of habitat in which they live; and 2) human landscape factors pose a risk to the condition of stream habitat, and indirectly, to fishes. The 2015 inland stream assessments for the contiguous United States, Alaska, and Hawaii all followed five broad steps (Figure 1) that are described in detail below for the inland stream assessment for Alaska. Note that analytical details for the Alaska assessment differed in southeast Alaska as compared to the remainder of the state (referred to as greater Alaska) due to differences in the resolution of the spatial framework [...]

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Purpose

The U.S Geological Survey (USGS) is partnering with the National Fish Habitat Partnership (NFHP) to produce the 2015 report entitled, "Through a Fish's Eye: The Status of Fish Habitats in the United States 2015". The information contained within this item is a product of NFHP. The Bureau is neither responsible nor liable for the accuracy or the use of the scientific content within this item.
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