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fish Archive

Orcas to come up empty mouthed in CA?


The southern residents typically migrate all the way down to California’s Monterey Bay, often arriving there in January.  The presumably feed on salmon returning to or departing WA, OR, and CA rivers.   Below is an interesting article — in part because  members of all three pods have been sighted in the Salish Sea multiple times [...]

An example of NMFS restricting pesticide use in Oregon


Has this been done in Washington State already? clipped from www.oregonlive.com Restrictions placed on three pesticides deemed harmful to fish by Michael Milstein, The Oregonian Tuesday November 18, 2008, 9:07 PM Federal fisheries biologists today, concluding that three pesticides used throughout the Willamette Valley harm imperiled salmon, ordered sharp new restrictions on use of the [...]

WDFW says fish for Blackmouth


After hearing Sandra O’Neill talk about how resident Chinook are so much more contaminated with PCBs and PDBEs than offshore Chinook, I’m wondering if WDFW shouldn’t encourage harvesting of all blackmouth in a manner that maximizes the sequesteration of bioaccumulating toxins in landfills and/or humans.  Maybe we could limit recreational, commerical, and tribal catch of [...]

Bad news for orca prey research


The funds from the Pacific Salmon Commission could be a great catalyst of research about the behavior and ecology of the Chinook and chum salmon that southern residents appear to prefer. This decrease in endowment coupled with the recent news of losses in the SRKW population — possibly related to starvation — add up to [...]

Groundfish conservation in Puget Sound


Live blog of a talk entitled “Managing Puget Sound’s Groundfish Resources from the Bottom Up“ by Wayne Palsson at NWFSC 11:00 Background/motivation 28 species of rockfish, but poor habitat maps (compared with spotted owls, say) Decline of groundfish like Pacific Cod in south Puget Sound has been prominent in last 10-15 years. Walleye pollock is [...]

Brad Hanson on orca diet


Monster Jam, Brad Hanson, 07/04/05 Diet of southern resident killer whales Inferences from prey samples and sensors deployed on killer whales Time-depth-recorder deployments in southern residents Baird and Hansen+? (2005) J Canadian Zoology 40 deployments from 1993-2002 ~10.5 minutes median record duration L87 Haro Strait example record: 2 dives to 100m with velocity spikes near [...]