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Document Title:

Tumors in Catfish from the South River, Anne Arundel County, MD

AUTHOR(S):
Alfred E. Pinkney


PUBLICATION DATE: 2005

ABSTRACT:
The brown bullhead (Ameiurus nebulosus) is a species of catfish that lives in rivers, lakes, and ponds. In tidal waters, they can tolerate salinities up to about 15 parts per thousand (about half that of the ocean). Bullheads feed on worms, insect larvae, and small crustaceans living in the mud. These fish often develop liver and skin tumors after exposure to cancer-causing chemicals that accumulate in sediments. They also have a small home range. Thus, bullhead tumor surveys have been used as an indicator for measuring habitat quality in the Great Lakes and Chesapeake Bay watersheds.

PUBLISHED BY:
U.S. Fish and Wildlife Service

DOCUMENT LINK:
http://www.fws.gov/chesapeakebay/pdf/SouthRiverFS.pdf, 150 KB

ADDITIONAL LINKS:

U.S. Fish and Wildlife Service - Chesapeake Bay Field Office

Last updated: February 13, 2013