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Invasive Bighead Carp Caught Near Joliet, IL

Detailed Description

USGS hydrologist Jim Duncker prepares to sample liver tissue from an invasive bighead carp caught on the lower Des Plaines River near Joliet, IL.  The USGS is working with other partner agencies and university researchers to keep the invasive species from becoming established in the Great Lakes.

Sources/Usage

Public Domain.