Squid normally found from Washington State down to Baja, California have migrated to Alaskan waters. Researchers not only want to know why, but are concerned about how they could impact the ecosystem of their new home.
came across the sea creatures, it was some place more unusual - in waters of the Gulf of Alaska hundreds of miles north of their normal West Coast habitat."Yeah, their typical range would be from basically Washington State down to Baja, California. And yeah, they made a pretty big leap, starting around 2015, all the way up into the far northwestern Gulf of Alaska," explains marine researcher Benjamin Burford, Ph.D.
Burford, was working as a graduate student at Stanford when he began looking into the northern migration. He found the highly adaptable squid not only extended their habitat, but managed to keep growing to their full size at the same time. "They have the ability, instead of having to like reach a specific size or age in order to mature and breed, they can adjust that based on the conditions they experience. And so often, what you'll see is squid that grow up in really poor conditions like warm, not a whole lot of food, they'll mature at really small body sizes," he says.
But at full size, he says the Alaska squid have the ability to hunt small fish, potentially impacting populations of baby salmon and other sea life. In recent years, marine biologists have noted a number of other marine species, like juvenile Great White sharks extending their range further north -- to waters near Monterey. Theories have centered on climate change, and warming ocean temperatures.
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