Skip to main content
U.S. flag

An official website of the United States government

Sampling invertebrates on the Colorado River downstream of Davis Dam with a Hess sampler

By Southwest Biological Science Center
USGS researcher standing in a river holding a metal Hess sampler to sample aquatic invertebrates
Original Thumbnail Medium

Detailed Description

Sampling invertebrates on “Casino Row” at Laughlin, Nevada, just downstream of Davis Dam on the Colorado River, September 7, 2015. 

Sources/Usage

Public Domain.