Amphistichus koelzi
Calico Surfperch
NS
GNR
Collection Details
Specimens
Photos
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Records
Taxonomic Hierarchy
Actinopterygii (Ray-finned Fishes)
Perciformes (Perciformes, Also Called the Acanthopteri)
Embiotocidae (Surfperches)
Amphistichus
Amphistichus koelzi (Calico Surfperch)
Description
This species account was compiled from
FishBase (Froese, R. and D. Pauly. Editors. 2025. FishBase. World Wide Web electronic publication. www.fishbase.org, version 04/2025.)
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Characters
Body shape: short and / or deep. Generally silvery overlaid with brassy tones; back bluish or olivaceous; lower head and lower anterior part of body tinged with red; sides with series of brown speckles which form rough narrow vertical bars; pectorals plain, other fins usually reddish (Ref. 6885).
Distribution
Eastern Pacific: near Cape Flaterry in Washington, USA to northern Baja California, Mexico. Recorded 32 km from the Canadian border (Ref. 6885).
Habitat Associations
Marine. demersal. depth range 0-9 m.
Biology
Adults occur usually in sand beaches in surf (Ref. 2850). Viviparous, female carries the developing young (Ref. 205).
Max length: 31.0 cm TL.
Reproductive mode: dioecism; fertilization: internal (oviduct); bearers (internal live bearers); parental care: maternal. Viviparous, female carries the developing young (Ref. 205).
IUCN Red List Status: Least Concern (LC), assessed 2009-02-04. Resilience: Medium (Assuming tm<5).
Commercial or Environmental Importance
Fisheries: commercial; gamefish.
References
Breder, C.M. and D.E. Rosen (1966) Modes of reproduction in fishes. T.F.H. Publications, Neptune City, New Jersey. 941 p.
Eschmeyer, W.N., E.S. Herald and H. Hammann (1983) A field guide to Pacific coast fishes of North America. Boston (MA, USA): Houghton Mifflin Company. xii+336 p.
Hart, J.L. (1973) Pacific fishes of Canada. Bull. Fish. Res. Board Can. 180:740 p.
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