Actinopterygii (ray-finned fishes) > Scorpaeniformes
(Scorpionfishes and flatheads) > Psychrolutidae
Etymology: Psychrolutes: Greek, psychroloutes = someone that has a cold bath (Ref. 45335). More on authors: Stein & Bond.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 500 - 2800 m (Ref. 50610). Deep-water; 72°N - 34°N, 138°E - 121°W (Ref. 117245)
North Pacific: Japan (Ref. 559) and the Bering Sea to off San Diego, California, USA.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 70.0 cm TL male/unsexed; (Ref. 2850); max. published weight: 9.5 kg (Ref. 2850)
Morphology | Morphometrics
Occurs in very deep waters (Ref. 2850). Feeds on sea pens, crabs and mollusks (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. 118484)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 2.3 - 4.8, mean 2.8 °C (based on 265 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.5 ±0.57 se; based on food items.
Vulnerability (Ref. 59153
): Moderate to high vulnerability (49 of 100) .