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: Narke: Greek, narke = numbness (Ref. 45335).
More on author: Gmelin.
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋 居于水底的; 深度上下限 20 - 183 m (Ref. 6589). 亞熱帶的; 23°S - 36°S, 13°E - 32°E (Ref. 114953)
Southeast Atlantic: Cape of Good Hope to central Natal, South Africa. Possibly occurring in Namibia, Mozambique and Madagascar (Ref. 5578, Ref. 114953).
東南大西洋: 尖岬到南非納塔爾中部。 可能出現在莫三比克與馬達加斯加。 (參考文獻 5578)
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 38.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 5578)
简单描述
型态特徵 | 形态测量图
Small ray with an almost circular disc and an elongated caudal fin (Ref. 5578). Yellowish-brown above with yellowish patches on upper tail, yellow with brown margins below (Ref. 5578).
小的鳍条有一个几乎圆形的体盘与一个瘦长的尾鳍。 (参考文献 5578) 背面土黄色具有在上面的尾部上的淡黄色的区块, 黄色的有褐色下面的边缘.(参考文献 5578)
Occurs offshore on the shelf; also common on sandy and muddy bottoms at 20-115 m (Ref. 5578). Feeds mainly on polychaetes (Ref. 5578). Males reaches maturity at 18-23 cm TL, females at ca. 23 cm TL (Ref. 114953). Capable of giving a powerful shock (Ref. 5578). Incidental catch of trawlers (Ref. 5578). It is parasitised by the monogenean Electrocotyle whittingtoni in the gills (Ref. 124060).
在大陆架上生存外海; 也在 20-115 公尺的常见于沙泥底.(参考文献 5578) 主要吃多毛类动物。 (参考文献 5578) 能够给一个有力的惊吓。 (参考文献 5578) 底拖网的意外渔获.(参考文献 5578)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
東南大西洋: 尖岬到南非納塔爾中部。 可能出現在莫三比克與馬達加斯加。 (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
水族馆: 商业性
更多信息
年龄范围成长体长-体重体长-体长体长-频率形态测量图型态特徵仔鱼稚鱼动力学入添量丰度BRUVS
参考文献养殖养殖信息品种遗传学Electrophoreses遗传率疾病加工NutrientsMass conversion
合作者照片Stamps, Coins Misc.声音神经毒速度泳型鳃区Otoliths脑重体重比眼睛色素
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Estimates based on models
Preferred temperature (Ref.
123201): 12.7 - 20.6, mean 16 °C (based on 22 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6252 [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): 3.1 ±0.26 se; based on food items.
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 to moderate vulnerability (28 of 100).
