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Allocyttus niger James, Inada & Nakamura, 1988

Black oreo
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Allocyttus niger   AquaMaps   Data sources: GBIF OBIS
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Allocyttus niger
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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

分類 / Names 俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Zeiformes (Dories) 海魴目 (Dories) > Oreosomatidae (Oreos) 高的鯛科 (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 生態學

海洋 深海區的; 海洋洄游的 (Ref. 51243); 深度上下限 560 - 1300 m (Ref. 6390).   深水域; 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.
西南太平洋: 紐西蘭與 43個 °S 澳洲水域南方.(參考文獻 27159) 也參考文獻 26139.

Length at first maturity / 大小 / 重量 / 年齡

Maturity: Lm ?, range 36 - ? cm
Max length : 47.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 6390); common length : 35.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 9258); 最大體重: 1.5 kg (Ref. 6390); 最大年齡: 100 年 (Ref. 27140)

生物學特性     字彙 (例如 epibenthic)

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).

發現在深水中接近海床。 形成大群魚群在峰頂與峽谷附近的粗糙的底部之上。 稚魚是大洋性的而且居住於大洋性水域。 他們傾向零零散散的在平滑的地面之上.(參考文獻 6390) 主要捕食被囊動物與底棲的甲殼動物。 (參考文獻 27150) 在海洋表面與仔魚附近的卵漂流物也居住於水表面。 (參考文獻 6390) 以拖網捕捉率為依據, 沒有對於垂直性迴游的證據在白天或夜晚.(參考文獻 27150)

Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚

Displays seasonally synchronised reproduction.西南太平洋: 紐西蘭與 43個 °S 澳洲水域南方.(參考文獻 27159) 也參考文獻 26139.

主要參考資料 Upload your references | 參考文獻 | 合作者 : Heemstra, Phillip C. | 合作者

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 瀕危狀態 (Ref. 130435)

  未評估 

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的




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FAO(漁業: 產生; publication : search) | FishSource | 周邊海洋

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Estimates based on models

Preferred temperature (Ref. 115969): 2.1 - 6.8, mean 5.1 (based on 63 cells).
Phylogenetic diversity index (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).
營養階層 (Ref. 69278):  3.5   ±0.50 se; based on food items.
回復力 (Ref. 120179):  非常低的, 最小族群倍增時間超過14 年 (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).
價格種類 (Ref. 80766):   Medium.