Skip to main content

Northeastern States Most Pervasive and Severe Disturbances Figure

from the 2015 National Fish Habitat Assessment


Most severe disturbances in the Northeastern States associated with stream reaches being scored as having high or very high risk of habitat degradation. Disturbances are grouped into super categories (fragmentation by dams; nutrient and sediment pollution; human population; road length and crossings; water withdrawals; urban land use; agricultural land use; mines and impervious surface cover) within the four spatial scales (local catchment, network catchment, local buffer, and network buffer). Only disturbance groups that have greater than 5% of stream length in a given category are represented in this figure. Note that not all disturbance categories are available for each spatial scale; buffers have only urban land use, agricultural [...]

Attached Files

Click on title to download individual files attached to this item.

Most severe disturbances.png thumbnail 40.84 KB image/png


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.

Item Actions

View Item as ...

Save Item as ...

View Item...