Echogram illustrating the ascending and descending phases of the diel migrations through the water column. The downward and upward migration activity occurs during crepuscular periods. The color scale maps to acoustic scattering intensity.

Echogram illustrating the ascending and descending phases of the diel migrations through the water column. The downward and upward migration activity occurs during crepuscular periods. The color scale maps to acoustic scattering intensity. Image courtesy of DEEP SEARCH - BOEM, USGS, NOAA.

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DEEP SEARCH Water Column Research

DEEP SEARCH: DEEP Sea Exploration to Advance Research on Coral/Canyon/Cold seep Habitats