Coho in the Strait of Georgia was up to
40 and 47 per cent respectively. But these
estimates seemed very high to our Science
Team, so we initiated a new 2016 program
to broaden diet studies throughout the
Strait.
Now, a recent report from Puget Sound
states a very similar impact from seal
predation. These estimates were indepen-
dently determined, adding strength to their
validity. The American study also equated
this mortality in juvenile salmon to the
total weight of Chinook salmon consumed
by the Southern Resident Orcas in one year.
This is an increasingly complex web we are
weaving!
salmon Steward magazine 13
Top: An outfitted seal wears the beanie
and backpack used to determine how many
juvenile salmon seals have been eating.
Left: Nathan Furey and Steve Healey,
researchers for the Salish Sea Marine Survival
Project, model acoustic receivers used to
track fish.
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