Photographic identification and abundance estimates of humpback and blue whales off California in 1991-92

Citation:

Calambokidis, J., G.H. Steiger, and J.R. Evenson. 1993. Photographic identification and abundance estimates of humpback and blue whales off California in 1991-92. Report to Southwest Fisheries Center, National Marine Fisheries Service, La Jolla, California. 67pp.

Abstract: