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.
Read the full story at Alaska Business Monthly>>
National Fisherman Live: 12/16/14
In this episode, Bruce Buls, WorkBoat's technical editor, interviews Long Island lobsterman John Aldridge, who survived for 12 hours after falling overboard in the dead of night. Aldridge was the keynote speaker at the 2014 Pacific Marine Expo, which took place Nov. 19-21 in Seattle.
NOAA, in consultation with the Department of the Interior, has appointed 10 new members to the Marine Protected Areas Federal Advisory Committee. The 20-member committee is composed of individuals with diverse backgrounds and experience who advise the departments of commerce and the interior on ways to strengthen and connect the nation's MPA programs. The new members join the 10 continuing members appointed in 2012.