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Dr Barry Poulton, an aquatic entomologist at the CERC

By Columbia Environmental Research Center
Dr Barry Poulton, an aquatic entomologist at the Columbia Environmental Research Center, uses a stereo microscope
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Detailed Description

Dr Barry Poulton, an aquatic entomologist at the Columbia Environmental Research Center, uses a stereo microscope to identify midge (Chironomidae) larvae found in the stomach of young-of-year pallid sturgeon.

Sources/Usage

Public Domain.