Invertebrate Sampler on the Mississippi River
![Image: Invertebrate Sampler on the Mississippi River](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/Invertebrate%20samplers%20UMR.jpg?itok=ZIATHZW5)
Detailed 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.
Sources/Usage
Public Domain.