Jessie Dirks
4/23/2020 1:08 PM
I attended one session of the Salish Sea Conference yesterday and thought I’d share the link to recorded presentations! Some of them look super interesting. The Education, Community, and Social Science track could be a fun training resource for any of us looking for extra hours.
Here’s one takeaway from the Trophic Energy Flow presentation:
Data indicate that female harbor porpoises might be more likely to catch and consume large fish, because larger fish means that they get more energy, or more bang for their buck, from the meal. The female porpoises might need more energy because they spend most of their lives in pregnancy cycles. One potential impact is that preying on larger fish increases the likelihood of choking, so female porpoises are potentially engaging in riskier behavior in a gamble to get more energy.
Harbor Porpoises (Phocoena phocoena vomerina) Catching and Handling Large Fish on the U.S. West CoastKatrina MacIver1, Cindy Elliser1, Sanne Hessing2, Katrina MacIver1, Marc Webber3 and William Keener3, (1)Pacific Mammal Research, Anacortes, WA, (2)CetaScience, Houten, Netherlands, (3)The Marine Mammal Center, Sausalito, CA