As their name suggests, rainbow surfperch are very colorful. They are iridescent grayish to purple with bright blue spots and many orange to dark reddish brown bars that span across the top half of their body. They also have a blackish spot on the base of their dorsal fin and on their anal fin. Rainbow surfperch can grow up to 30.5 cm.
Habitat
Kelp beds and sandy bottoms to depths of 50 m.
Diet
Small molluscs and polychaetes.
Life History
The rainbow surfperch is viviparous, meaning they give birth to live young. Reproduction occurs in large gatherings in the fall. Pregnancy lasts 7 to 9 months and young are born in shallow coastal waters. Each female produces 9 to 22 young that are about 6.8 cm long. Information on rainbow surfperch life span is unavailable.
IUCN Status
Not Evaluated
Ecosystem & Cultural Importance
Rainbow surfperch are preyed on by a variety of species including game fish, marine mammals, and birds. Predatory fish include striped bass, California halibut, Pacific bonito, lingcod, salmon, rockfishes, kelp bass, barred sand bass, and leopard shark. They are also eaten by harbor seals, river otters and birds such as great blue heron, least tern, Caspian tern, Forster’s tern, cormorants, loons, osprey, and various gulls.
Occasionally caught by recreational fishermen.
This animal is not native to the Oregon Coast, however is found in the larger Pacific Ocean. It lives in the Aquarium as part of our Connected Coasts gallery.
Like other perches, the rainbow surfperch are sometimes called “picker fish” because they pick food out of mid water as they feed.
Citations & Other Resources
CA Marine Species Portal. (n.d.). . https://marinespecies.wildlife.ca.gov/rainbow-seaperch/false/.
Kells, V. A. 2016. A field guide to coastal fishes. From Alaska to California. Johns Hopkins University Press, Baltimore.
Snyderman, M. 1998. California marine life: a guide to common marine species. Roberts Rinehart Publishers in cooperation with Monterey Bay Aquarium, Niwot, Colo.
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