Actinopteri (ray-finned fishes) > Perciformes/Cottoidei
() > Liparidae
Etymology: Rhodichthys: Greek, rhodeos, a,-on = rose + Greek, ichthys = fish (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 1080 - 2365 m (Ref. 51661). Deep-water; 75°N - 58°N, 140°W - 17°E
Arctic to Northeast Atlantic: Central Arctic Basin, Norwegian and Greenland seas (Ref. 51661); including north of the Wyville-Thomson Ridge and the Iceland-Faroe Rise (Ref. 4702).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 31.0 cm SL male/unsexed; (Ref. 4702)
Vertebrae: 62 - 69. This species is distinguished by the following characters: vertebrae 62-69; D 56-60; pectoral fin
with 12-13 rays in upper lobe, 4-5 notch rays (rudimentary to their basis and widely spaced) and
2-3 elongated rays in lower lobe; preanal distance 34.3-34.5% SL, head 23.4-23.9%; postorbital distance short, 12.7-13.0% SL; wide and flat tooth plates, teeth very small, slightly prominent and even in size; posterior margin of gill cover rounded; skin on head, including its lower side, pale (bright red in life); mouth pale, grayish gill cavity (Ref. 86261).
Epibenthic; feeds on crustaceans (Ref. 58426).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Stein, D.L. and K.W. Able, 1986. Liparididae. p. 1275-1283. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the North-eastern Atlantic and the Mediterranean. UNESCO, Paris. Vol. III. (Ref. 4702)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): -0.9 - 4.2, mean 3.5 °C (based on 198 cells).
Phylogenetic diversity index (Ref. 82805
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00468 (0.00219 - 0.00998), 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 ±0.48 se; based on food items.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate vulnerability (41 of 100) .