Trawl sampling the midwater depths of Astoria Canyon will help to refine distribution and abundance estimates of marine life generated by acoustic measurements and video. Image courtesy of Lewis and Clark 2001, NOAA/OER.
Trawl sampling the midwater depths of Astoria Canyon will help to refine distribution and abundance estimates of marine life generated by acoustic measurements and video. Image courtesy of Lewis and Clark 2001, NOAA/OER.