Harbor porpoise distribution and abundance estimates off Washington from aerial surveys in 1990

Citation:

Calambokidis, J., J.C. Cubbage, S.J. Jeffries, P. Gearin, and R. Brown. 1991. Harbor porpoise distribution and abundance estimates off Washington from aerial surveys in 1990. Report to the National Marine Mammal Laboratory, National Marine Fisheries Service, Seattle. 35pp.