USGS Multimedia Gallery
Title: Invertebrate Sampler on the Mississippi River
Description: Biological sampling devices are deployed on the upper Mississippi River to collect invertebrates for science. Each sampler is attached to a floating buoy and multiple samplers are placed together near a wing dam structure on the river to study the river's food web and productivity.
Location: La Crosse, WISCONSIN, USA
Date Taken: Jun 20 2008
Photographer: William Richardson , U.S. Geological Survey
Usage: This image is public domain/of free use unless otherwise stated. Please refer to the USGS Copyright section for how to credit the photo.
Upper Midwest Environmental Sciences Center
River Productivity Team
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