Actinopterygii (ray-finned fishes) > Scorpaeniformes
(Scorpionfishes and flatheads) > Psychrolutidae
Etymology: Malacocottus: Greek, malakos, = soft + Greek, kottos = a fish (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 27 - 1980 m (Ref. 50550). Deep-water; 66°N - 46°N
North Pacific: northern Japan (Ref. 559), Sea of Okhotsk and Cape Navarin in the western Bering Sea to Agattu Island in the Aleutian chain and Washington, USA.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 35.0 cm SL male/unsexed; (Ref. 51978); max. published weight: 1.2 kg (Ref. 51978); max. reported age: 12 years (Ref. 51978)
Morphology | Morphometrics
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. 119314)
CITES (Ref. 115941)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 1.3 - 4.5, mean 3.1 (based on 187 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01445 (0.00708 - 0.02949), b=3.05 (2.87 - 3.23), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic Level (Ref. 69278
): 3.8 ±0.1 se; Based on diet studies.
Resilience (Ref. 69278
): Low, minimum population doubling time 4.5 - 14 years (tmax=12).
Vulnerability (Ref. 59153
): Moderate to high vulnerability (46 of 100) .