saltwater
Barred Surfperch
Amphistichus argenteus
Compressed, oval-shaped body with vertical dark bars and spots along the sides, silver to yellowish coloration, continuous spiny and soft-rayed dorsal fin, and a forked tail fin. Covered in small cycloid scales.
- Habitat
- Inshore coastal waters, surf zones, sandy beaches, and s…
- Size & weight
- Typically ranges from 8 to 15 inches in length and weigh…
- Diet
- Feeds primarily on bottom-dwelling invertebrates includi…
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Physical characteristics
Compressed, oval-shaped body with vertical dark bars and spots along the sides, silver to yellowish coloration, continuous spiny and soft-rayed dorsal fin, and a forked tail fin. Covered in small cycloid scales.
Habitat & distribution
Inshore coastal waters, surf zones, sandy beaches, and shallow bays along the Pacific coast of North America, ranging from Alaska down to Baja California.
Behavior
Forms loose schools in the surf zone, often moving dynamically with the tide and wave action to forage in the wash zone. Active throughout the day.
Diet
Feeds primarily on bottom-dwelling invertebrates including sand crabs, small crustaceans, clams, and marine worms using its small terminal mouth.
Reproduction
Viviparous, meaning they give birth to live, fully developed young rather than laying eggs. Mating typically occurs in the fall or winter, and females release the young in the spring.
Ecological role
Serves as an important mid-level consumer in the surf zone ecosystem, transferring energy from benthic invertebrates to larger marine predators and coastal birds.
Similar species
Other surfperch species such as the Redtail Surfperch and Calico Surfperch; distinguished primarily by the specific pattern of vertical dark bars and spots on the flanks.
Identification tips
Look for the distinctive vertical bars and dark spots on a silvery, deep-bodied shape in the shallow surf zone.
Interesting facts
Surfperches are unique among many bony fish because they are live-bearers, giving birth to remarkably large and well-developed offspring that are immediately capable of independent survival in harsh wave-swept environments.