Warming oceans bring pink sea slugs to northern California

February 3, 2015 5:37 AM

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While warmer ocean temperatures have been blamed for rising sea levels, they have also brought a population of pink sea slugs to northern California. No stranger to southern California, the Hopkins’ rose nudibranch (Okenia rosacea) has been migrating to northern California in massive numbers.

Researchers at UC Santa Cruz, UC Santa Barbara, Bodega Marine Laboratory, and the California Academy of Sciences have been tracking the migration of Okenia rosacea, reporting densities of up to dozens per square meter.

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