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Neocyttus rhomboidalis Gilchrist, 1906

Spiky 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.
Neocyttus rhomboidalis   AquaMaps   Data sources: GBIF OBIS
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Image of Neocyttus rhomboidalis (Spiky oreo)
Neocyttus rhomboidalis
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Australia country information

Common names: Deepwater dory, Deepwater oreo dory, Oreo dory
Occurrence: native
Salinity: marine
Abundance: abundant (always seen in some numbers) | Ref: May, J.L. and J.G.H. Maxwell, 1986
Importance: minor commercial | Ref: Kailola, P.J., M.J. Williams, P.C. Stewart, R.E. Reichelt, A. McNee and C. Grieve, 1993
Aquaculture: | Ref:
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: Present on the continental slope from Broken Bay (Ref. 27159) north of Sydney to about 26°S latitude in Western Australia (Ref. 27124). This is the most common oreo species off southern Australia (Ref. 26498). There is no information concerning stock structure of spiky oreos in Australian waters. Commercial fishery: The main fishing area for oreos including spiky oreos is within the South East Fishery, on the continental slope of Tasmania. There have also been significant catches of oreos 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 to 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. Only small numbers of spiky oreos are landed in Tasmania. 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. Most of the oreo catch in the Bight is reported to be spiky oreos which are normally discarded in favour of orange roughy. Spiky oreos are usually processed into fillets and frozen for both domestic and export markets. As of 1993, approximately 50% of the oreo catch was exported, mainly to Europe and the United States fo 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 spiky 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

Неоцит, Spikey oreodory, 菱体新海鲂, ... more

分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa

> Zeiformes (Dories) > Oreosomatidae (Oreos) > Oreosomatinae
Etymology: Neocyttus: Greek, neos = new + Greek, kyttaros, kytos = a convex cavity.

Environment: milieu / climate zone / depth range / distribution range 生態学

海 深海浮遊性; 海洋回遊性 (Ref. 51243); 深さの範囲 200 - 1240 m (Ref. 6390), usually 450 - 800 m (Ref. 30191).   Deep-water; 23°S - 48°S, 81°W - 176°W

分布 国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | Faunafri

Southeast Atlantic: off Walvis Bay, Namibia to Cape Province, South Africa. Southwest Atlantic: off Argentina. Eastern Indian Ocean: southern Australia, from about 26°S in Western Australia to Broken Bay (Ref. 7300), New South Wales. Southwest Pacific: New Zealand.

Length at first maturity / サイズ / 重さ / 年齢

Maturity: Lm 34.0, range 29 - ? cm
Max length : 40.0 cm SL オス/雌雄の選別がない; (Ref. 30191); 最大公表体重: 2.0 kg (Ref. 6390); 最大記録サイズ: 100 年 (Ref. 27140)

簡単な記述 形態学 | 形態計測学

背面の脊椎 (合計): 7; 背鰭 (合計): 33-35; 肛門の骨 3-4; 臀鰭: 30 - 33. Body grey, fins dark (Ref. 6548).

生物学     用語集 (例 epibenthic)

Inhabit continental slopes (Ref. 9563), forming large shoals over rough ground near pinnacles and canyons (Ref. 6390). Juveniles are pelagic and tend to be dispersed over smooth grounds (Ref. 6390). Feed on salps, fish, crustaceans and squid (Ref. 27230). Eggs float near the surface and larvae also inhabit surface waters (Ref. 6390).

Life cycle and mating behavior 成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生

Displays seasonally synchronised reproduction.

主な参考文献 Upload your references | 参考文献 | コーディネーター : Heemstra, Phillip C. | 協力者

Karrer, C., 1990. Oreosomatidae. p. 637-640. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 2. (Ref. 6545)

IUCNのレッドリストの状況は (Ref. 130435)

  評価されなかった 

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless




Human uses

水産業: 少数商業の
FAO(水産業: 代謝; publication : search) | FishSource | 私達の周りの海

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Estimates based on models

Preferred temperature (Ref. 115969): 5 - 9.7, mean 7.8 (based on 131 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5635   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01698 (0.00988 - 0.02919), b=3.01 (2.85 - 3.17), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
栄養段階 (Ref. 69278):  3.6   ±0.53 se; based on food items.
回復力 (Ref. 120179):  非常に低い, １４年以上の倍増期間の最小個体群 (tmax=100).
Fishing Vulnerability (Ref. 59153):  High to very high vulnerability (70 of 100).
Climate Vulnerability (Ref. 125649):  Moderate vulnerability (41 of 100).
価格帯 (Ref. 80766):   Medium.