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U.S. West Coast Groundfish Bottom Trawl Survey

The West Coast Groundfish Bottom Trawl Survey (WCGBTS) is a key source of fishery-independent data used for stock assessments and groundfish management.

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north-pacific-right-whale.jpg North Pacific right whale. Credit: Brenda K. Rone
An oceanic whitetip shark swims in the middle of the ocean. An oceanic whitetip shark swims near the surface of the water. Photo courtesy of John Carlson.
Dozens of white, brown, and pink-colored sea scallops photographed on a black ocean floor. Dense beds of small Atlantic sea scallops photographed on the ocean floor in the Mid-Atlantic in 2015. Credit: NOAA Fisheries.