Species conservation relies on understanding population demographics, yet this information is lacking for many species and populations. Four stocks of

We estimated humpback and blue whale abundance from 1991 to 1997 off the west coast of the U.S. and Mexico

We estimated the abundance of humpback whales in the North Pacific by capture-recapture methods using over 18,000 fluke identification photographs

As part of the Bering Sea Project, cetacean surveys were conducted to describe distribution and estimate abundance on the eastern

Trends in cetacean density and distribution off southern California were assessed through visual line-transect surveys during thirty-seven California Cooperative Oceanic