Disappearance and return of harbor porpoise to Puget Sound: 20 year pattern revealed from winter aerial surveys

Citation:

Evenson, J.R., D. Anderson, B.L. Murphie, T.A. Cyra, and J. Calambokidis. 2016. Disappearance and return of harbor porpoise to Puget Sound: 20 year pattern revealed from winter aerial surveys. Technical Report. Washington Department of Fish and Wildlife, Wildlife Program and Cascadia Research Collective, Olympia, WA.

Abstract:

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