Invertebrates of Interest: Sea Urchin

California's coastal waters are home to a multitude of invertebrates (species lacking a bony skeleton). A small fraction of these, including the red sea urchin and the purple sea urchin, are actually targeted by California's recreational and commercial fisheries. In the following links, visitors can learn more about urchin species identification, biology, habitat, geographic range, fishing methods, and more.

Purple urchins forage on rocky reef. CDFW photo by Derek Stein.