Severe ocean heatwaves prompt dozens of species of sea slugs, jellyfish and other marine life to migrate into the waters off Northern California.
This Sept. 12, 2015, photo provided by Jacqueline Sones shows a Janolus Nudibranch in Bodega Harbor, Calif. A new study reports that dozens of warm-weather species of sea slugs, jellyfish and other marine life migrated into the northern California region over an unusually long two-year period of severe heatwaves. The University of California, Davis report is to be published Tuesday, March 12, 2019, in Scientific Reports.
The 67 species identified in the report include a carnivorous sea slug that preys on other sea slugs and a sea snail “butterfly” usually spotted hundreds of miles away off the coast of Mexico. The study by the University of California, Davis is to be published Tuesday in Scientific Reports. “I’ve been working here for 14 years and before our very eyes we are seeing a shift in the local marine communities,” he said.
Temperatures in Northern California waters, which normally range from 50 to 55 degrees Fahrenheit , increased 3.5 to 7 degrees Fahrenheit.
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