We have a few resources you can use. To start, please check our Fish and Shellfish Identification web page. The Guide To The Coastal Marine Fishes of California - Fish Bulletin 157 is a document that many of our marine scientists use to identify fish in the field. Our Marine Species Portal has great information and scientific illustrations that can provide more information about marine fish! If you still can’t find information on a certain fish, please email us at AskMarine@wildlife.ca.gov with a photo of the fish and where you caught it.