1. California Sea Grant Extension Program Scripps Institution of Oceanography University of California San Diego California 92093 USA
2. Marine Science Institute University of California Santa Barbara California 93106 USA
3. Department of Biology California State University Northridge California 91330 USA
4. City of San Diego Public Utilities Department La Mesa California 91942 USA
5. University of California Cooperative Extension–San Diego County San Diego California 92123 USA
6. Coastal Research Center Marine Science Institute University of California Santa Barbara California 93106 USA