Actinopteri (ray-finned fishes) > Perciformes/Cottoidei
(Sculpins) > Cottidae
Etymology: Myoxocephalus: Greek, myos = muscle, and also, mouse + Greek, kephale = head (Ref. 45335). More on author: Pallas.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; amphidromous (Ref. 51243); depth range 0 - 775 m (Ref. 6793). Temperate; 66°N - 42°N, 144°E - 124°W
North Pacific: Hokkaido, Japan and Kamchatka, Russia through the Aleutian Islands to the Bering Sea coast of Alaska and Puget Sound, Washington, USA.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 54 - 58 cm
Max length : 80.0 cm TL male/unsexed; (Ref. 56527); max. published weight: 9.0 kg (Ref. 56527); max. reported age: 17 years (Ref. 122394)
(total): 9 - 10;
soft rays: 11 - 13. Caudal fin slightly rounded (Ref. 6885). Color deep olive on dorsal surface with 4 dark saddles across back; ventral surface pale; brown bars running downward on relaxed unpaired and paired pectoral fins (Ref. 6885).
Occurs in the intertidal area and to 244 m depth, on sand and mud bottoms (Ref. 2850). Feeds on small fishes (Ref. 4925). Often caught near shore (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. 123251)
CITES (Ref. 123416)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 0.7 - 6.3, mean 3.2 °C (based on 435 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00871 (0.00566 - 0.01340), b=3.13 (3.00 - 3.26), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 3.8 ±0.2 se; based on diet studies.
Generation time: 13.7 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (tm=6-8; tmax=9-13; K=0.08-0.21; Fec=2,00-10,000).
Vulnerability (Ref. 59153
): High to very high vulnerability (68 of 100) .