A scientist towing for zooplankton from a boat in Lake Powell
By Southwest Biological Science Center
March 2013 (approx.)
Detailed Description
A scientist completes a zooplankton tow from a boat in Lake Powell. The net pictured here is pulled through through the top 30 m of the reservoir to collect a zooplankton sample for species identification and enumeration. Photo by Robert Radtke, U.S. Bureau of Reclamation.
Sources/Usage
Public Domain.