Field guide index
Invertebrates
Explore invertebrates through our San Diego field notes. Find practical guides, coastal context and links to the official information you need before heading out.

San Diego coastal waters
San Diego Spiny Lobster: Wildlife and Fishing Basics
A species-and-regulations primer, not a list of secret fishing spots or a substitute for current CDFW rules.
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San Diego coast
San Diego Coastal Wildlife: Plants and Animals Field Guide
Observe San Diego coastal wildlife across scrub, wetlands and tide pools, with practical identification tips and low-impact viewing advice.
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San Diego coastal waters
Lobster Season San Diego: California Spiny Lobster Rules
The confirmed season framework and the legal checks to make before a recreational California spiny lobster outing.
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San Diego coast
Clams in San Diego: Bean Clams, Identification and Rules
Watching small clams in the wash is different from harvesting them. Know the species and check both legal and health restrictions before collecting.
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