Skip to main content
U.S. flag

An official website of the United States government

BEST Large Rivers Monitoring Network (LRMN)

February 21, 2019

The Biomonitoring of Environmental Status and Trends (BEST) Program's Large River Monitoring Network (LRMN) has examined fish health in multiple river basins by using a suite of organismal and suborganismal endpoints, which monitor and assess the effects of environmental contaminants in fish.