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Fish biologist Jeff Finley shows how to cast net

December 1, 2013 | 12:00 p.m. CST
Jeff Finley, center, instructs Michael Womack, left, and Chris Hoehn, right, on how to best cast a fishing net for catching bottom-feeding fish on the Missouri River on Oct. 25. For scientific surveys, fish biologists often need thousands of fish to make an accurate depiction of the health of a river or other water ecosystem.

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