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Food Web Dynamics Influence Mercury Movement in the Grand Canyon

By Communications and Publishing
USGS scientists Jeff Muehlbauer and Ted Kennedy process a rainbow trout
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Detailed Description

USGS scientists Jeff Muehlbauer and Ted Kennedy process a rainbow trout captured as part of a study to help determine how food web dynamics influence the movement of mercury throughout the Colorado River in the Grand Canyon.

Sources/Usage

Copyright: David Herasimtschuk/Freshwaters Illustrated