Have Warming Seas Caused Skyrocketing Sea Slug Populations?

The warm ocean temperatures that brought an endangered green sea turtle to San Francisco in September have triggered a population explosion of bright pink, inch-long sea slugs in tide pools along California's central and northern coastline. The Hopkins' Rose nudibranch, while no strange sight in Southern California, is rarely spotted farther north. A team of scientists, including experts from the California Academy of Sciences, believes this far-flung Okenia rosacea bloom--along with a slew of other marine species spotted north of their typical ranges--may signal a much larger shift in ocean climate and a strong forthcoming El Niño. read more

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