Actinopterygii (ray-finned fishes) > Scorpaeniformes
(Scorpionfishes and flatheads) > Liparidae
Etymology: Paraliparis: Greek, para = the side of + Greek, liparis = fat (Ref. 45335); pectoralis: Specific name refers to its distinct pectoral fin. More on author: Stein.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 681 - 1636 m (Ref. 58496). Deep-water
North Pacific: off Oregon, central Bering Sea, and off Okhotsk coast of Hokkaido.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 21.8 cm SL male/unsexed; (Ref. 26773)
Morphology | Morphometrics
soft rays: 49 - 52;
Vertebrae: 61 - 66. Body tapered posteriorly. Head stout and wide. Nostril with raised rim on a level with pupil. Snout high and broadly rounded (Ref. 37271). Teeth, simple and pointed; horizontal mouth; 2 superbranchial pores. Pale stomach (Ref. 11671).
Minimum depth reported at 681 m (Ref. 26773).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Stein, D.L., 1978. A review of the deepwater Liparidae (Pisces) from the coast of Oregon and adjacent waters. Proc. Cal. Acad. Sci. 127:1-55. (Ref. 26773)
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
): 2.4 - 3.8, mean 2.7 °C (based on 58 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00468 (0.00221 - 0.00989), b=3.17 (2.98 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.6 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (32 of 100) .