Actinopteri (ray-finned fishes) > Perciformes/Cottoidei
(Sculpins) > Liparidae
Etymology: Psednos: Greek, psednos, -e, -on = rare (Ref. 45335); groenlandicus: The name groenlandicus refers to Greenland, its type locality (Ref. 42989). More on author: Chernova.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 930 - 1055 m (Ref. 42989). Deep-water; 65°N - 63°N
Northwest Atlantic: Davis Strait.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.3 cm SL male/unsexed; (Ref. 42989)
Morphology | Morphometrics
Vertebrae: 47. No coronal pore, 6 preoperculo-mandibular pores and 1 suprabranchial pore; short mouth cleft (reaching to below anterior margin of eye), upper jaw short 10.6-12.6% SL); vertical gill slit about equal to eye diameter and placed low, pectoral notch with usually 2 rays, and with slight blackish pigmentation at end of caudal part of body and along vertebrae.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Chernova, N., 2001. A review of the genus Psednos (Pisces, Liparidae) with description of ten new species from the north Atlantic and southwestern Indian Ocean. Bull. Mus. Comp. Zool. 155(10):477-507. (Ref. 42989)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.3 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .