Key Identification Features
- When the fish are young, these vertical markings are distinct bars, but they become less distinct olive-red-brown markings as the fish grows.
- As mature males develop, they develop a distinctive permanent shortening of some anal fin rays.
- Per the California Department of Fish and Game, barred surfperch can be identified by the bars and spots on their sides (though many individuals are unbarred), and by the absence of a red tail.
- Even when this color morph occurs, black surfperches can still be identified by a patch of enlarged scales between their pectoral and pelvic fins.
For instant identification in the field, use the iNature app — AI-powered, works offline.
