Sound scattering by marine organisms was studied off the
Oregon coast and between Hawaii and Adak, Alaska. Variations in
scattering were observed over a period of several hours, over did
(24-hour) periods, from month to month, from inshore to offshore,
in relation to biomass of midwater animals, and temperature and...
Partly laminated sediments on the upper continental
slope (200-600 m) off central Peru contain a diverse assemblage
of fish debris, diatoms, and the remains of a variety
of other nektonic, planktic, and benthic organisms. Approximately
97 percent of the fish scales recovered from
the best preserved cores come from the...