We undertook a survey of the main (windward) Hawaiian Islands during May and June 2003 to examine odontocete population structure.

Since 1996, Cascadia Research has been conducting research on humpback whales and other marine mammals off the Pacific coast of

Detailed information on diving (sub-surface) behavior of beaked whales (family Ziphiidae) is only available for one of the 21 recognized

In an effort to better understand the diet of so-called “southern resident” killer whales, we collected prey remains from feeding

This report summarizes fieldwork conducted by Cascadia Research and collaborators in 2003 on humpback, blue, fin and gray whales off

A collaborative effort to photographically identify of gray whales in the waters of the Pacific Northwest from California through Alaska

The current best estimate of population size for false killer whales within Hawaiian waters is only 268 individuals (Barlow 2003),

Considerable uncertainty exists regarding population structure and population sizes of most species of odontocetes in the Hawaiian Islands. A small-boat