They belong to the surfperch family Embiotocidae. The body of the Walleye surfperch is oval and strongly compressed. Sandlance and crustaceans are eaten by the redtail surfperch. Redtail surfperch appear to school like other surfperch. The belly of the redtail surfperch slopes upward after the anus. Fish species included the tidewater goby, topsmelt, striped mullet, surfperch and Pacific staghorn sculpin. Walleye surfperch often occur in dense schools. Along the creek's south shore, anglers fish for surfperch and rockfish. The pier is especially known for its magnificent barred surfperch fishing. The extension of fins can significantly change the redtail surfperch outline or profile. Barred surfperch are an important sport fishery for most surf fishermen in California. Redtail surfperch ("Amphistichus rhodoterus") are viviparous, a species that gives birth to live young.