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Strongylocentrotus purpuratus (Purple Sea Urchin)
Scientific name: Strongylocentrotus purpuratus
Common name: Purple Sea Urchin
Locations: Eastern Pacific
Group: Marine LifeInvertebratesSea Urchins

Young ones can be pale, but the short spines are still distinctive.

These eat kelp. In turn, urchins are eaten by many species of sea star. But with the wasting disease reducing many sea star populations the last few years, urchins have taken over at some Monterey dive sites and reduced kelp coverage. This makes the sea otters sad.

If you'd like to do something to help the kelp survive the urchin onslaught, check out the Giant Giant Kelp Restoration Project.

Other images:
Strongylocentrotus purpuratus (Purple Sea Urchin)
Strongylocentrotus purpuratus (Purple Sea Urchin)
Strongylocentrotus purpuratus (Purple Sea Urchin)
Strongylocentrotus purpuratus (Purple Sea Urchin)
Strongylocentrotus purpuratus (Purple Sea Urchin)
Strongylocentrotus purpuratus (Purple Sea Urchin)
Strongylocentrotus purpuratus (Purple Sea Urchin)
Strongylocentrotus purpuratus (Purple Sea Urchin)
Strongylocentrotus purpuratus (Purple Sea Urchin)
Strongylocentrotus purpuratus (Purple Sea Urchin)
Strongylocentrotus purpuratus (Purple Sea Urchin)
Urchin with balding disease; missing most of its spines
Strongylocentrotus purpuratus (Purple Sea Urchin)
Dead urchin
Strongylocentrotus purpuratus (Purple Sea Urchin)
Strongylocentrotus purpuratus (Purple Sea Urchin)
Eating kelp
Strongylocentrotus purpuratus (Purple Sea Urchin)
Urchins stripping rocks bare
Strongylocentrotus purpuratus (Purple Sea Urchin)
Strongylocentrotus purpuratus (Purple Sea Urchin)
Strongylocentrotus purpuratus (Purple Sea Urchin)
Strongylocentrotus purpuratus (Purple Sea Urchin)
Urchin test (skeleton)
Strongylocentrotus purpuratus (Purple Sea Urchin)
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