Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; non-migratory; depth range 0 - 452 m (Ref. 50550), usually 100 - 150 m (Ref. 56580). Temperate; 1°C - 9°C (Ref. 56580); 62°N - 46°N, 171°E - 121°W (Ref. 57307)
North Pacific: Sea of Okhotsk, Sea of Japan (Ref. 559), Kuril Islands (Ref. 56580) and the Bering Sea to Puget Sound, Washington, USA.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 12.0 cm TL male/unsexed; (Ref. 56580); common length : 10.0 cm TL male/unsexed; (Ref. 56580); max. published weight: 24.00 g (Ref. 56580); max. reported age: 7 years (Ref. 56580)
Dorsal spines (total): 8 - 11; Dorsal soft rays (total): 5 - 7; Anal spines: 0; Anal soft rays: 8 - 11; Vertebrae: 35 - 37. Lower lobe of pectoral fin with 7 to 8 free rays. A barbel is present on the tip of the snout. Dorsum highly elevated at nape. Branchial membrane free from isthmus. Supralateral and infralateral plates attached to each other on lateral line. Dorsal fins close to each other. Lateral line plates less than 15.
Body shape (shape guide): elongated.
Rocky sand, gravel, or pebble bottoms. Frequently covered by featherlike polyps (small hydroid animals) (Ref. 2850).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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. (Ref. 2850)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
Fisheries: bycatch
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