Pacific Northwest National Laboratory researcher John Stephenson observes the pressure tanks. Researchers are using chambers to figure out how improve fish survival rates.
Pacific Northwest National Laboratory
Scientists can create different amounts of pressure in each of these tanks to simulate the pressure fish experience when swimming through a turbine.
The U.S. Army Corps of Engineers is using research from Pacific Northwest National Laboratory to help replace turbines at Ice Harbor Dam in Washington.
Flickr Creative Commons: Scott Butner
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