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Most Pervasive and Severe Disturbances for the Pacific Coast States

from the National Fish Habitat Partnership's 2015 Through a Fish's Eye Report


A. Pervasive disturbances: The most common disturbances based on total stream length in a given region. Top five overall most pervasive disturbances to all stream reaches, regardless of stream size and across all spatial scales (ranked highest first): Impervious surface cover Total anthropogenic sediment yield Upstream dam density Industrial water withdrawal High intensity urban land use Top three most pervasive disturbances to creeks (watersheds <100 km 2 in area) across all spatial scales: Total anthropogenic (human caused) sediment yield Impervious surface cover Industrial water withdrawal Top three most pervasive disturbances to rivers (watersheds >100 km 2 in area) across all spatial scales : Road crossing density Road [...]



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. This content is considered preliminary pending subsequent review and approval.
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