E-Fauna BC: Electronic Atlas of the Wildlife of British Columbia

Aulorhynchus flavidus Gill, 1861
Family: Gasterosteidae
Photo of species

© Aaron Baldwin  Email the photographer   (Photo ID #10311)

Source: Distribution of Aulorhynchus flavidus as compiled by Aquamaps
E-Fauna's interactive maps for fish are not yet available.

Species Information

Dorsal spines (total): 24 - 27; Dorsal soft rays (total): 9 - 10; Anal spines: 1; Anal soft rays: 9. Spinous dorsal represented by a series of small spines, free from membrane; soft dorsal fin triangular and placed well back on body; caudal fin small and finely forked; anal fin spine small and broad, the fin mirroring the soft dorsal fin; pectorals truncate (Ref. 6885). Pale mottled brown, varying from olive green to yellow brown dorsally; creamy white ventrally; a bright silvery patch between operculum and pectorals extending to throat and bounded above by a dark band that extends forward through eye to snout; breeding males with bright red snout and phosphorescent snout (Ref. 6885).

Source: FishBase. Eschmeyer, W.N., E.S. Herald and H Hammann. 1983 . (Ref. 2850).


Species Biology

Found in kelp beds, eelgrass, rocky areas, and over sand bottoms (Ref. 2850). Usually near the surface in schools, sometimes in dense schools well offshore (Ref. 2850). Feeds on small crustaceans and fish larvae (Ref. 6885). Minimum depth reported taken from Ref. 57178. benthopelagic; marine; depth range 0 - 30 m (Ref. 6885). Temperate.

Source: FishBase. Eschmeyer, W.N., E.S. Herald and H Hammann. 1983 . (Ref. 2850).



Eastern Pacific: Sitka, Alaska to Punta Banda, northern Baja California, Mexico.

Source: FishBase. Eschmeyer, W.N., E.S. Herald and H Hammann. 1983 . (Ref. 2850).

Status Information

Origin StatusProvincial StatusBC List
(Red Blue List)
NativeSNRNo StatusNot Listed
BC Ministry of Environment: BC Species and Ecosystems Explorer--the authoritative source for conservation information in British Columbia.

Additional Range and Status Information Links

Additional Photo Sources

General References

Recommended citation: Author, Date. Page title. In Klinkenberg, Brian. (Editor) 2021. E-Fauna BC: Electronic Atlas of the Fauna of British Columbia [efauna.bc.ca]. Lab for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver. [Accessed: 2024-05-28 6:47:39 AM]
Disclaimer: The information contained in an E-Fauna BC atlas pages is derived from expert sources as cited (with permission) in each section. This information is scientifically based.  E-Fauna BC also acts as a portal to other sites via deep links.  As always, users should refer to the original sources for complete information.  E-Fauna BC is not responsible for the accuracy or completeness of the original information.

© E-Fauna BC 2021: An initiative of the Spatial Data Lab, Department of Geography, UBC