Citation:
Calambokidis, J., T. Chandler, L. Schlender, K. Rasmussen, G.H. Steiger, and N. Black. 2001. Abundance and movements of humpback and blue whales off California using photographic identification. in: Abstracts of presentations at the Sixth Biennial Workshop on Research in the Gulf of the Farallones. Gulf of the Farallones National Marine Sanctuary. San Francisco, CA. 25 October 2001.