Paul Dorn, Preliminary Results of Beach Seine Sampling in 2007 and 2008.
Unmarked coho dominated our seines, particularly in may/june. Coho size about 120-140cm, larger if from hatchery. Lots of juvenile chum in apr/may/june (many more in 2007 than in 2008, probably due to Dec 07 floods). 2008 pink salmon (may/june) show this is part of the pink highway for fish leaving Puget Sound. Shiner perch in 07, 08.
Large vessel wakes are like winter storm events during the summer on the calmest of days.
Elisabeth Duffy*, David Beauchamp
Juvenile salmon are moving through Puget Sound (PS) from April-July. By end of July most have made it to the deep ocean. Percent of fish from hatcheries is about 50% in N PS and 90% in S PS.
Nearshore fish comunity: herring and perch up north, hatchery salmon dominate in the south; salmon are 30-130mm, herring 130-160cm, sand lance 100-130cm; north diets dominated by insects, south diet by crab larvae, euphausids; predators drive early mortality and salmonids dominate (cutthroat target smallest juveniles)
Overall, marine survival has been really low, and lowest during pink years. The bigger the fish are in July, the better their marine survival.
Where do we go from here?
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