Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
marina bottenlevande; ej vandrande; djupintervall 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 / Vikt / Age
Könsmognad: Lm ? range ? - ? cm
Max length : 12.0 cm TL hane/ej könsbestämd; (Ref. 56580); common length : 10.0 cm TL hane/ej könsbestämd; (Ref. 56580); publicerad maxvikt: 24.00 g (Ref. 56580); rapporterad maxålder: 7 år (Ref. 56580)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 8 - 11; Mjukstrålar i ryggfenan (totalt) : 5 - 7; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 8 - 11; Ryggkotor: 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
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
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 2024-2)
Threat to humans
Harmless
Human uses
Fiskeri: bycatch
Verktyg
Special reports
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Estimates based on models
Preferred temperature (Ref.
123201): 3.5 - 7.2, mean 5.4 °C (based on 78 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00479 (0.00189 - 0.01213), b=3.05 (2.83 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.2 ±0.1 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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