分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鰓亞綱 (鯊魚與魟魚) (sharks and rays) >
Torpediniformes (Electric rays)
電鰩目 (Electric rays) >
Narcinidae (Numbfishes)
雙鰭電鰩科 (Numbfishes)
Etymology: Narcine: Greek, narke = numbness (Ref. 45335).
Eponymy: Ignacio Riera Julia was Chief of the Spanish Fisheries Office and adviser to the General Direction of International Fisheries Relations, Ministry of Agriculture and Fisheries, Mahé, Seychelles (1989). He was a good friend of the senior author Lloris. (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海底的; 深度上下限 170 - 500 m (Ref. 114953). 深水域; 2°N - 20°S, 35°E - 48°E (Ref. 114953)
Western Indian Ocean: central Somalia to at least Mozambique.
西印度洋: 索馬利亞中部到至少莫三比克。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 30.1 cm TL 雄魚/尚未辨別雌雄; (Ref. 11228)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
Shovel-shaped disc with a long tail (much longer than disc length); a longer-than-wide nasal curtain; slender tooth bands that are subtriangular in shape (Ref. 49866). Uniform light brown or golden-brown dorsally (Ref. 49866).
鏟-形狀的體盤有一個長的尾部 (遠長過體盤長度); 一個長度大於寬度的鼻幕; 細長的齒箍那是近三角形的在外形上.(參考文獻 49866) 均勻的淡褐色或金褐色背面.(參考文獻 49866)
Known based on 11 specimens. Males mature at 26 cm TL; born at ca. 9 cm TL. Low fecundity based on two mid-term embryos (each just over 7 cm) found in right uterus of large female (Ref. 114953).
已知依據為 11件標本了。 雄性在 26 公分時成熟。
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
西印度洋: 索馬利亞中部到至少莫三比克。
Heemstra, P.C., 1995. Additions and corrections for the 1995 impression. p. v-xv. In M.M. Smith and P.C. Heemstra (eds.) Revised Edition of Smiths' Sea Fishes. Springer-Verlag, Berlin. (Ref. 11228)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)
人類使用
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Estimates based on models
Preferred temperature (Ref.
123201): 13.8 - 15.9, mean 15.1 °C (based on 7 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01175 (0.00470 - 0.02937), b=2.88 (2.66 - 3.10), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.1 ±0.3 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 低的, 最小族群倍增時間4.5 - 14 年 (Assuming fecundity<100).
Fishing Vulnerability (Ref.
59153): Low vulnerability (20 of 100).
