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A scientist towing for zooplankton from a boat in Lake Powell

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.  


Public Domain.