Tetronarce nobiliana, Electric ray

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Tetronarce nobiliana (Bonaparte, 1835)

Electric ray
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Tetronarce nobiliana   AquaMaps   Data sources: GBIF OBIS
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Tetronarce nobiliana
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分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, ) | ITIS | CoL | WoRMS | Cloffa

板鰓亜鋼(サメとエイ類) (sharks and rays) > Torpediniformes (Electric rays) > Torpedinidae (Electric rays)
Etymology: More on author: Bonaparte.

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

底生の漂泳性; 海洋回遊性; 深さの範囲 2 - 800 m (Ref. 35509), usually 10 - 150 m (Ref. 35388). Subtropical; 60°N - 48°S, 180°W - 180°E (Ref. 114953)

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

Circumglobal. Eastern Atlantic: Scotland (rare in North Sea) to Morocco, whole of Mediterranean, but not Black Sea; Cap Blanc in Mauritania to Gulf of Guinea, São Tomé Island; Walvis Bay, Namibia to Mossel Bay, South Africa (Ref. 5578). Western Atlantic: Nova Scotia, Canada south to Brazil (Ref. 26340). Eastern Indian Ocean: Australia (Ref. 114953). Southwest Pacific: New Zealand (Ref. 114953).

サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 180 cm TL オス/雌雄の選別がない; (Ref. 2803); common length : 40.0 cm TL オス/雌雄の選別がない; (Ref. 3261); 最大公表体重: 90.0 kg (Ref. 7251)

簡単な記述 形態学 | 形態計測学

Large ray with a huge, paddle-shaped caudal fin and with no papillae around spiracles. Shiny black or dark grey above, underside white (Ref. 5578). Broad subcircular disc, short snout anterior to the eyes. Smooth skin, short thick tail (Ref. 6902). Dark chocolate to purplish brown above, without spots, white below, but with edges of disc and pelvic fins of same hue as upper surface, tail with irregular dark margins (Ref. 6902).

生物学     用語集 (例 epibenthic)

Juveniles benthic over soft bottoms or near coral reefs (Ref. 12951) from 10-150 m; adults are semi-pelagic to pelagic, swimming in the water column and have been reported to migrate over long distances (Ref. 2803). Found on insular slopes to at least 925 m depth (Ref. 114953). Feeds mainly on pelagic and benthic bony fishes and small sharks (Ref. 5578). Ovoviviparous (Ref. 50449). Produces litters of up to 60 pups. In South Pacific region, males reaches maturity at ca. 60 cm TL (Ref. 114953). Packs a powerful electric shock of up to 220 volts (Ref. 9710).

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

Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449). With up to 60 in a litter. Gestation period one year (Ref. 12951). Size at birth about 23 cm (Ref. 12951).

主な参考文献 Upload your references | 参考文献 | コーディネーター : Carvalho, Marcelo | 協力者

Stehmann, M. and D.L. Bürkel, 1984. Torpedinidae. p. 159-162. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the north-eastern Atlantic and Mediterranean. UNESCO, Paris. Vol. 1. (Ref. 2803)

IUCNのレッドリストの状況は (Ref. 130435)

  軽度懸念 (LC) ; Date assessed: 31 August 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

Other (Ref. 10011)





Human uses

水産業: 興味がない
FAO - Publication: search | FishSource |

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共通名の
類義語
代謝
捕食動物
生態毒性
繁殖
成熟
放精
卵の集合体
生産力

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Age/Size
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形態計測学
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参考文献
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シガテラ(食中毒の名前)
速度
泳ぐ 型式
カマ
Otoliths

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Estimates based on models

Preferred temperature (Ref. 123201): 7.3 - 27.5, mean 13.9 °C (based on 3020 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5001   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01380 (0.01026 - 0.01858), b=2.99 (2.91 - 3.07), in cm total length, based on LWR estimates for this species (Ref. 93245).
栄養段階 (Ref. 69278):  4.5   ±0.6 se; based on diet studies.
回復力 (Ref. 120179):  低い, 4.5年~14年の倍増期間の最小個体群 (Fec=60;).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (90 of 100).
Nutrients (Ref. 124155):  Calcium = 4.55 [0.56, 83.64] mg/100g; Iron = 0.469 [0.043, 5.703] mg/100g; Protein = 16.5 [12.3, 20.1] %; Omega3 = 0.287 [0.104, 0.796] g/100g; Selenium = 43.8 [7.7, 218.9] μg/100g; VitaminA = 10.9 [0.8, 145.9] μg/100g; Zinc = 0.386 [0.021, 4.499] mg/100g (wet weight);