Environment: milieu / climate zone / depth range / distribution range
Ecologia
marino batidemersale; distribuzione batimetrica 3248 - 5320 m (Ref. 58018). Deep-water; 23°S - 63°S
Southern Ocean and Atlantic: Scotia Sea abyss and Peru-Chile Trench (Ref. 5197), Weddell Sea and the Crozet Plateau (Ref. 75765, 90064).
Size / Peso / Age
Maturity: Lm ? range ? - ? cm
Max length : 24.8 cm SL maschio/sesso non determinato; (Ref. 11954)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Raggi dorsali molli (totale) : 106; Raggi anali molli: 95 - 112; Vertebre: 117 - 138. This species differs form all other Southern Ocean congeners by having very large head pores and the retrograde origin of the dorsal fin (predorsal distance 27-36.6% SL, free dorsal-fin pterygiophores 6-16; pelvic fin present; anal fin rays 95-112; vertebrae 117-138 (Ref. 75765).
Life cycle and mating behavior
Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve
Anderson, M.E., 1990. Zoarcidae. p. 256-276. In O. Gon and P.C. Heemstra (eds.) Fishes of the Southern Ocean. J.L.B. Smith Institute of Ichthyology, Grahamstown, South Africa. (Ref. 5197)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Pesca: di nessun interesse
Strumenti
Special reports
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Fonti Internet
Estimates based on models
Preferred temperature (Ref.
123201): -0.3 - 1.7, mean 0.8 °C (based on 4494 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00120 (0.00057 - 0.00252), b=3.10 (2.91 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
Resilienza (Ref.
120179): Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (20 of 100).
