分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鳃亚纲 (鲨鱼与 鱼) (sharks and rays) >
Torpediniformes (Electric rays) >
Narkidae (Sleeper rays)
Etymology: Heteronarce: Greek, heteros = other + Greek, narke = numbness (Ref. 45335).
More on author: Regan.
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋 居于水底的; 深度上下限 73 - 329 m (Ref. 6589). 亞熱帶的; 20°S - 35°S, 27°E - 37°E (Ref. 114953)
Western Indian Ocean: southern Mozambique to Algoa Bay, South Africa (Ref. 5578).
西印度洋: 莫三比克南部到南非奧歌亞灣.(參考文獻 5578)
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 25.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 6589)
简单描述
检索表 | 型态特徵 | 形态测量图
Small ray with an elongated, narrow disc and a small, narrow caudal fin (Ref. 5578). Plain brown above, white below (Ref. 5578).
小的鳍条有一个瘦长又狭窄的体盘与一个小又狭窄的尾鳍。 (参考文献 5578) 一致褐色的上方, 腹面白色的.(参考文献 5578)
Found on the outer shelf and upper slope (Ref. 5578). Life history unknown. Males reaches maturity at ca. 17 cm TL (Ref. 114953).
栖息于外部的大陆架与上层斜坡了。 (参考文献 5578)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
西印度洋: 莫三比克南部到南非奧歌亞灣.(參考文獻 5578)
Compagno, L.J.V., 1986. Narkidae. p. 113-114. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 6589)
人类利用
渔业: 没有兴趣
工具
特别资料
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Estimates based on models
Preferred temperature (Ref.
123201): 15.2 - 22, mean 18.1 °C (based on 27 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5627 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.2 ±0.3 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (Assuming fecundity<100).
Fishing Vulnerability (Ref.
59153): Low vulnerability (15 of 100).
