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Zeiformes (Dories) >
Oreosomatidae (Oreos) > Pseudocyttinae
Etymology: Pseudocyttus: Greek, pseudes = false + Greek, kyttaros, kytos = a convex cavity.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino batidemersale; oceanodromo (Ref. 51243); distribuzione batimetrica 400 - 1500 m (Ref. 5194), usually 900 - 1100 m (Ref. 36731). Deep-water; 34°S - 67°S, 90°W - 176°W (Ref. 27159)
Southwest Atlantic: off Uruguay to Argentina and the Falklands. Southeast Atlantic: Namibia to South Africa, including the northern part of Walvis Ridge (Ref. 6545). South Pacific: off southern Chile, Bellingshausen and Australian-Antarctic Basin to New Zealand, New South Wales and Tasmania, Australia and the Kerguelen Islands.
Lunghezza alla prima maturità / Dimensione / Peso / Età
Maturità: Lm 40.0  range ? - 41 cm
Max length : 68.0 cm TL maschio/sesso non determinato; (Ref. 58312); common length : 40.0 cm TL maschio/sesso non determinato; (Ref. 9258); peso massimo pubblicato: 5.0 kg (Ref. 6390); Età massima riportata: 100 anni (Ref. 27140)
Spine dorsali (totale) : 5 - 7; Raggi dorsali molli (totale) : 33 - 36; Spine anali: 2 - 3; Raggi anali molli: 31 - 34; Vertebre: 40 - 43. First dorsal spine longer than second dorsal spine. Opercles fully scaled (Ref. 27159).
Female adult chocolate brown in color with darker fins; prejuveniles silvery with numerous dark spots of various sizes which become larger with age (Ref. 6548).
Body shape (shape guide): short and / or deep.
Inhabit continental slopes of all southern continents (Ref. 6545). Adults found near the bottom; juveniles near the surface, usually in association with krill (Ref. 5194). Feed mainly on salps (Ref. 27150). Eggs float near the sea surface and larvae also inhabit surface waters (Ref. 6390). There is no vertical migration during the day or night (Ref. 27150).
Displays seasonally synchronised reproduction (Ref. 6390).
Heemstra, P.C., 1990. Oreosomatidae. p. 226-228. In O. Gon and P.C. Heemstra (eds.) Fishes of the Southern Ocean. J.L.B. Smith Institute of Ichthyology, Grahamstown, South Africa. (Ref. 5194)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: commerciale
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Temperatura preferita (Fonte Biblio.
123201): 2.1 - 6.1, mean 4.2 °C (based on 189 cells).
Indice di diversità filogenetica (Fonte Biblio.
82804): PD
50 = 1.0010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00809 - 0.04920), b=2.99 (2.77 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Livello trofico (Fonte Biblio.
69278): 3.6 ±0.47 se; based on food items.
Resilienza (Fonte Biblio.
120179): Molto basso, tempo minimo di raddoppiamento della popolazione più di 14 anni (K=0.02-0.1; tmax=100; tm=31; Fec=6,000).
Vulnerabilità della pesca (Ref.
59153): High to very high vulnerability (72 of 100).
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Vulnerabilità climatica (Ref.
125649): Moderate vulnerability (39 of 100).
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Nutrienti (Ref.
124155): Calcium = 16.2 [8.5, 36.6] mg/100g; Iron = 0.416 [0.153, 0.905] mg/100g; Protein = 17.2 [14.6, 20.0] %; Omega3 = 0.332 [0.167, 0.702] g/100g; Selenium = 24.3 [9.3, 71.5] μg/100g; VitaminA = 11.1 [1.8, 67.9] μg/100g; Zinc = 0.335 [0.207, 0.526] mg/100g (wet weight);