Aerial Surveys of Puget Sound Aerial Surveys, 2013-2015

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From 2013 to 2015, researchers conducted systematic line-transect aerial surveys for marine mammals in eight subregions of Puget Sound encompassing inland waters of Washington State. Effort consisted of five separate survey periods spanning four seasons (winter, spring, summer and fall) and was funded by the United States Navy (Navy). Surveys focused on estimating seasonal in-water density and abundance of cetaceans, particularly harbor porpoise (Phocoena phocoena).