Salmon runs are notoriously variable: strong one year, and weak the next. New research shows that the same may be true from one century to the next.
Scientists in the past 20 years have recognized that salmon stocks vary not only year to year, but also on decades-long time cycles. One example is the 30-year to 80-year booms and busts in salmon runs in Alaska and on the West Coast driven by the climate pattern known as the Pacific Decadal Oscillation.
Now work led by University of Washington researchers reveals those decadal cycles may overlay even more important, centuries-long conditions, or regimes, that influence fish productivity. Cycles lasting up to 200 years were found while examining 500-year records of salmon abundance in Southwest Alaska. Natural variations in the abundance of spawning salmon are as large those due to human harvest.
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Callifornia crabbing: Here's a fun video shot on the decks of the Majestik while catching Dungeness crab off the coast of northern California.
The United Fishermen of Alaska, a statewide commercial fishing industry trade association representing 36 member organizations, announces the election of Jerry McCune of Cordova District Fishermen United as president.
NMFS has announced two senior leadership changes that the agency says align with changes it is making to its West Coast operations.