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* Heat wave adds to salmon’s migratory obstacles
06/07/15
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Sockeye of the Adams River spawning run, one of several each summer in the Fraser River watershed. Above-average temperatures threaten to be lethal to the returning fish this summer.
The Early Stuarts, first of this season’s sockeye, are now ghosting in from the North Pacific, homing on the freshwater plume of the Fraser River.
It spills in a vast, silty lens across the Salish Sea, one of the last mysterious signals guiding them toward the final dangerous stretch of a 16,000-kilometre journey.
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