(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).
Environment: milieu / climate zone / depth range / distribution range
; 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.
Length at first maturity / Size / Peso / Age
Maturity: 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: 100 anni (Ref. 27140)
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)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
BibliografiaAcquacolturaProfilo di acquacolturaVarietàGeneticaFrequenze allelicheEreditarietàMalattieElaborazioneNutrientsMass conversion
CollaboratoriImmaginiStamps, Coins Misc.SuoniCiguateraVelocitàModalità di nuotoArea branchialeOtolithsCervelliVista
Estimates based on models
Preferred temperature (Ref. 115969
): 2.1 - 6.8, mean 5.1 °C (based on 63 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5635 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01445 (0.00728 - 0.02870), b=3.03 (2.85 - 3.21), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 3.5 ±0.50 se; based on food items.
Resilienza (Ref. 120179
): Molto basso, tempo minimo di raddoppiamento della popolazione più di 14 anni (tmax=100; tm=27; Fec >5,000).
Vulnerability (Ref. 59153
): High to very high vulnerability (69 of 100) .
Nutrients (Ref. 124155
): Calcium = 11.5 [5.0, 27.4] mg/100g ; Iron = 0.31 [0.16, 0.64] mg/100g ; Protein = 17.5 [14.9, 20.4] % ; Omega3 = 0.4 [0.2, 0.9] g/100g ; Selenium = 9.72 [3.50, 28.11] μg/100g ; VitaminA = 45.9 [8.0, 286.5] μg/100g ; Zinc = 0.402 [0.237, 0.699] mg/100g (wet weight);