Okenia rosacea

When Roses Bloom in Northern California, Researchers Take Notice

Medicine & Technology Feb 02, 2015

While the presence of small pink roses may seem like an innocuous blossom, researchers from the University of California, Santa Cruz are finding that as little creatures appear they signal warmer waters to come. No, these pink roses aren’t flora species, they’re hot pink sea slugs found traditionally in southern California tide pools. But as they’ve migrated north, researchers now believe that coastal water temperatures are on the rise, and this could have serious implications farther up on the food chain.

Is Climate Change To Blame for These Blooming Pink Nudibranchs?

Jan 31, 2015

While they be fun to look at, a new sight in northern California tide pools are causing quite a bit of concern as the shades of oceanic blue are filled with one-inch blotches of hot pink. The culprits, known as Hopkin’s Rose Nudibranch (Okenia rosacea), are sea slugs common to the warmer waters of southern California. But as water temperatures shift, researchers fear that their migration further up the coast may be a sign of what’s to come.