Changes in harbor and Dall’s porpoise in Puget Sound, 1990s to present

Speaker

David Anderson, Cascadia Research CollectiveFollow
Joseph R. Evenson, Washington Department of Fish and Wildlife
Laurie Shuster, Cascadia Research Collective
John Calambokidis, Cascadia Research Collective

Session Title

Session Description: Changes in Marine Mammal Occurrence in the Salish Sea

Session Description

Changes in harbor and Dall’s porpoise in Puget Sound, 1990s to present

David Anderson¹, Joseph R. Evenson², Laurie Shuster¹, John Calambokidis¹

¹Cascadia Research Collective ²Washington Department of Fish and Wildlife

There are two species of porpoise that occur within the Salish Sea. Harbor porpoise (Phocoena phocoena) are the smaller of the two species, considered to be shy, with surface behavior characterized by slow surface rolls (Figure 1). Dall’s porpoise (Phocenoides dalli) are larger, and as one of the fastest cetaceans, their surface behavior usually produces rooster tails (Figure 2). Dall’s habitat is generally farther offshore than that of the harbor porpoise.

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Keywords

Harbor porpoise, Dall's porpoise, Salish Sea

Conference Track

SSE11: Species and Food Webs

Conference Name

Salish Sea Ecosystem Conference (2018 : Seattle, Wash.)

Document Type

Event

SSEC Identifier

SSE11: Session Description

Start Date

6-4-2018 1:30 PM

End Date

6-4-2018 3:00 PM

Type of Presentation

Oral

Genre/Form

conference proceedings; presentations (communicative events)

Contributing Repository

Digital content made available by University Archives, Heritage Resources, Western Libraries, Western Washington University.

Subjects – Topical (LCSH)

Porpoises--Behavior--Salish Sea (B.C. and Wash.); Porpoises--Salish Sea (B.C. and Wash.)--Geographical distribution

Geographic Coverage

Salish Sea (B.C. and Wash.)

Comments

This is an extended abstract for the session.

Rights

This resource is displayed for educational purposes only and may be subject to U.S. and international copyright laws. For more information about rights or obtaining copies of this resource, please contact University Archives, Heritage Resources, Western Libraries, Western Washington University, Bellingham, WA 98225-9103, USA (360-650-7534; heritage.resources@wwu.edu) and refer to the collection name and identifier. Any materials cited must be attributed to the Salish Sea Ecosystem Conference Records, University Archives, Heritage Resources, Western Libraries, Western Washington University.

Type

Text

Language

English

Format

application/pdf