Sampling invertebrates with a Hess sampler
![USGS researcher standing in a river holding a metal Hess sampler to sample aquatic invertebrates](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/02-%20Hess%20sampling.png?itok=AjuMzTb7)
Detailed Description
Sampling invertebrates on “Casino Row” at Laughlin, Nevada, just downstream of Davis Dam on the Colorado River (September 7, 2015).
Sampling invertebrates on “Casino Row” at Laughlin, Nevada, just downstream of Davis Dam on the Colorado River (September 7, 2015).