Australia country information

Common names: Black dory, Black oreo, Black oreo dory
Occurrence: native
Salinity: marine
Abundance: abundant (always seen in some numbers) | Ref: Kailola, P.J., M.J. Williams, P.C. Stewart, R.E. Reichelt, A. McNee and C. Grieve, 1993
Importance: commercial | Ref: Kailola, P.J., M.J. Williams, P.C. Stewart, R.E. Reichelt, A. McNee and C. Grieve, 1993
Aquaculture: never/rarely | Ref: Kailola, P.J., M.J. Williams, P.C. Stewart, R.E. Reichelt, A. McNee and C. Grieve, 1993
Regulations: restricted | Ref: Kailola, P.J., M.J. Williams, P.C. Stewart, R.E. Reichelt, A. McNee and C. Grieve, 1993
Uses: no uses
Comments: Found in Australian waters south of 43°S (Ref. 27159). Australian catches of black oroes have been confirmed only from southern Tasmania and the South Tasman Rise but it is likely that this species is also present on the Cascade Plateau. There is no information concerning stock structure of black oreos in Australian waters. Commercial fishery: The main fishing area for oreos including black oreos is within the South East Fishery, on the continental slope of Tasmania. There have also been significant catches taken from the Cascade Plateau by foreign vessels under developmental fishing arrangements (Ref. 27029). Oreos in general are caught exclusively by vessels using demersal otter trawl gear. Oreo aggregations tend to be located over rough ground and require the use of 'target trawling' techniques similar to those used for orange roughy. They have been caught as a bycatch of orange roughy fishing for a number of years and, in the early stages of the orange roughy fishery, were normally discarded. Development of markets for oreos has led fishers to retain the oreo bycatch. Some fishers have targeted aggregations of oreos off southern Tasmania (Ref. 27090), especially during the closed season for orange roughy. Experienced skippers can often distinguish between orange roughy and oreos by their different acoustic target strengths on the echo sounder. Smooth oreos are the most common species in oreo landings inTasmania. However, as of 1993, the percentage of oreo landings had increased. Landings of oreos in the South East Fishery were about 60 t per annum between 1985-86 and 1987-88. The catch retained increased considerably in 1989-90 to just over 900 t. Some oreos are caught by vessels fishing orange roughy aggregations in the Great Australian Bight Trawl Fishery. Approximately 200 t of oreos were landed from this fishery in 1988-89 but the 1989-90 catch was less than 30 t. However, most of the oreo catch in the Bight is reported to be spiky oreos which are normally discarded in favour of orange roughy. Black oreos are usually processed into fillets and frozen for both domestic and export markets. As of 1993, approximately 50% of the oreo catch is now exported, mainly to Europe and the United States of America. The oreo 'frames' are processed into fertilizer or fishmeal and there is some interest in fish oil production from oreo waste. Resource status: As of 1993, Australian oreo stocks including black oreos were probably not fully fished. However, the low reproductive rate of oreos, their likely slow growth rate and their tendency to form dense aggregations may mean that there is a limited scope for expansion of this fishery.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/as.html
National Fisheries Authority: http://www.csiro.au/
Occurrences: Occurrences Point map
Main Ref: Kailola, P.J., M.J. Williams, P.C. Stewart, R.E. Reichelt, A. McNee and C. Grieve, 1993
National Database:

Common names from other countries

Arrose noir, Аллоцит черный, Black oreodory, ... more

Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

> 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).

Environment: milieu / climate zone / depth range / distribution range Ecologie

marien bathypelagisch; oceanodroom (Ref. 51243); diepte 560 - 1300 m (Ref. 6390). Deep-water; 43°S - 55°S, 65°E - 174°W (Ref. 27159)

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Southwest Pacific: New Zealand and Australian waters south of 43°S, and south of Tasmania at 47°S. Also Ref. 26139.

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturity: L_m ?, range 36 - ? cm
Max length : 47.0 cm TL mannelijk / geslacht onbekend; (Ref. 6390); common length : 35.0 cm TL mannelijk / geslacht onbekend; (Ref. 9258); max. gepubliceerd gewicht: 1.5 kg (Ref. 6390); max. gerapporteerde leeftijd: 100 Jaren (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).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Displays seasonally synchronised reproduction.

Hoofdreferentie Upload your references | Referenties | Coördinator : Heemstra, Phillip C. | Medewerkers

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)

Status op de Rode Lijst van het IUCN (Ref. 130435)

Niet geëvalueerd

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

Harmless

Gebruik door de mens

Visserij: commercieel

FAO(visserij: productie; publication : search) | FishSource | Sea Around Us

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Estimates based on models

Preferred temperature (Ref. 115969): 2.1 - 6.8, mean 5.1 (based on 63 cells).

Fylogenetische diversiteitsindex (Ref. 82804): PD₅₀ = 0.5635 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01413 (0.00715 - 0.02792), b=3.03 (2.85 - 3.21), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trofisch niveau (Ref. 69278): 3.5 ±0.50 se; based on food items.

Weerstandsvermogen (Ref. 120179): Zeer laag, minimale populatieverdubbelingstijd meer dan 14 jaar (tmax=100; tm=27; Fec >5,000).

Fishing Vulnerability (Ref. 59153): High to very high vulnerability (69 of 100).

Climate Vulnerability (Ref. 125649): Moderate vulnerability (40 of 100).

Prijsklasse (Ref. 80766): Medium.

Allocyttus niger James, Inada & Nakamura, 1988