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

Citation:

Calambokidis, J., G.H. Steiger, and J.R. Evenson. 1992. Photographic identification and abundance estimates of humpback and blue whales off California in 1991. Report to Southwest Fisheries Center, National Marine Fisheries Service, La Jolla, California. 40pp.