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Zeiformes (Dories) >
Oreosomatidae (Oreos) > Oreosomatinae
Etymology: Allocyttus: Greek, allos = other + Greek, kyttaros, kytos = a convex cavity; niger: niger refers to the blackish color of freshly caught specimens. It also reflects the common name "black oreo", which has been widely used in the New Zealand deepwater fishery for several years (Ref. 27159).
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino batipelagico; oceanodromo (Ref. 51243); distribuzione batimetrica 560 - 1300 m (Ref. 6390). Deep-water; 43°S - 55°S, 65°E - 174°W (Ref. 27159)
Southwest Pacific: New Zealand and Australian waters south of 43°S, and south of Tasmania at 47°S. Also Ref. 26139.
Lunghezza alla prima maturità / Dimensione / Peso / Età
Maturità: Lm ?, range 36 - ? cm
Max length : 47.0 cm TL maschio/sesso non determinato; (Ref. 6390); common length : 35.0 cm TL maschio/sesso non determinato; (Ref. 9258); peso massimo pubblicato: 1.5 kg (Ref. 6390); Età massima riportata: 153 anni (Ref. 54100)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Found close to the sea bed in deep water. Form large shoals over rough ground near pinnacles and canyons. Juveniles are pelagic and inhabit oceanic waters. They tend to be dispersed over smooth grounds (Ref. 6390). Feed mainly on salps and benthic crustaceans (Ref. 27150). Eggs float near the sea surface and larvae also inhabit surface waters (Ref. 6390). Based on trawl catch rates, there is no evidence of vertical migration during day or night (Ref. 27150).
Displays seasonally synchronised reproduction.
James, G.D., T. Inada and I. Nakamura, 1988. Revision of the oreosomatid fishes (Family Oreosomatidae) from the southern oceans, with a description of a new species. N.Z. J. Zool. 15:291-326. (Ref. 27159)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: commerciale
Strumenti
Rapporti speciali
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Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio. 82804) |
PD50 = 0.5635 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01413 (0.00711 - 0.02805), b=3.03 (2.85 - 3.21), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
Livello trofico (Fonte Biblio. 69278) |
3.5 ±0.50 se; based on food items. |
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Generation time |
56.1 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies. |
Resilienza (Fonte Biblio. 120179) |
Molto basso, tempo minimo di raddoppiamento della popolazione più di 14 anni (K=0.01-0.05; tmax=153; tm=27; Fec >5,000). |
Vulnerabilità della pesca (Ref. 59153) |
High to very high vulnerability (69 of 100). 🛈 |
Vulnerabilità climatica (Ref. 125649) |
Moderate vulnerability (40 of 100). 🛈 |
Categoria di prezzo (Ref. 80766) |
Medium.
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Nutrienti (Ref. 124155) |
Calcium = 18.7 [5.3, 52.6] mg/100g; Iron = 0.306 [0.116, 0.992] mg/100g; Protein = 17.6 [14.8, 20.6] %; Omega3 = 0.159 [0.051, 0.456] g/100g; Selenium = 17.7 [4.6, 65.7] μg/100g; VitaminA = 38.3 [3.4, 451.8] μg/100g; Zinc = 0.581 [0.270, 1.279] mg/100g (wet weight); |