Dr. Wakefield Interview

Dr. Waldo Wakefield from NOAA’s Northwest Fisheries Science Center explains how an echo-sounder is used to look for fish and other organisms in the water column. Video courtesy of San Andreas Fault 2010 Expedition, NOAA-OER.


Related Links

San Andreas Fault 2010

San Andreas Fault 2010: Sept 29 Log

NOAA Ocean Explorer Gallery