Research finds some Pacific salmon migration out of sync with food supply
Climate change is knocking some Pacific salmon out of alignment with the growth of the ocean plankton they eat to survive, new research says.
“The coastal ocean is changing in one way and Pacific salmon are changing in a myriad of other ways and those ways don’t always align,” said Wilson, a post-doctoral researcher in the salmon watersheds lab at Simon Fraser University. She found that some salmon populations are migrating earlier, with pink and chum changing fastest at seven days earlier per decade, while other species saw no change on average.
Wilson said that could be a challenge for people in charge of managing and protecting the species, who often use one population as an indicator to predict how the rest of the species is managing.
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