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) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Etymology: Rajella: Latin, raja, -ae = a sting ray (Raja sp.) (Ref. 45335).
Issue
Specific name amended to R. leoparda in accordance with ICZN Article 34.2 by Weigmann et al., 2014 (Ref.96993).
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋 深海底的; 深度上下限 130 - 1920 m (Ref. 106604). 深水域; - 36°S
Eastern Atlantic: off eastern and western South Africa to off Mauritania
東大西洋: 那米比亞外海與南非記錄呈點狀分佈塞內加爾外海與幾內亞的柯那克里與向北遠至茅利塔尼亞。 可能散佈於西非斜坡水域。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 95.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 106604)
简单描述
检索表 | 型态特徵 | 形态测量图
Large skate with a moderately long snout, small eyes, and a flat disc; tail about as long as body; small inconspicuous, light thorns on upper surface including snout (Ref. 5578). Medium grey to brownish dorsally, often with dark spots; white or mottled with dusky patches ventrally (Ref. 5578).
大的 鱼具有一个中等长度的吻，小的眼 , 与一个平坦的体盘; 尾部大约与身体一样长; 在上表皮包括吻上的小的不明显又淡的刺.(参考文献 5578) 中等的灰色到褐色的背面, 时常有深色的斑点; 白色的或腹地具有暗色的区块色斑.(参考文献 5578)
Found in deeper shelf and slope waters (Ref. 4426). Feed on bottom crustaceans, dragonets, rattails, hake, lanternfish, sea pens, cuttlefish and polychaete worms (Ref. 5578). Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats (Ref. 205). Egg capsules are 7.4 cm long and 7.4 cm wide (Ref. 41249). Caught by hake trawlers (Ref. 5578).
发现于较深的大陆架及大陆斜坡水域了。 (参考文献 4426) 捕食底部甲壳动物，鼠鱼，鼠尾鱼，鳕鱼，灯笼鱼，海洋钢笔，墨鱼与多毛类的蠕虫。 (参考文献 5578) 卵生的。 明显的成对出现。 幼鱼可能倾向跟随大的个体, 例如他们的母亲.(参考文献 205) 卵为长方形鞘囊具有僵硬的触角沈积在沙滩或泥滩的角落.(参考文献 205) 卵鞘是 7.4 公分长与 7.4 公分宽的.(参考文献 41249) 被鳕鱼底拖网捕获了。 (参考文献 5578)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205).東大西洋: 那米比亞外海與南非記錄呈點狀分佈塞內加爾外海與幾內亞的柯那克里與向北遠至茅利塔尼亞。 可能散佈於西非斜坡水域。
McEachran, J.D. and K.A. Dunn, 1998. Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia 1998(2):271-290. (Ref. 27314)
人类利用
渔业: 商业性
工具
特别资料
下载 XML
网络资源
Estimates based on models
Preferred temperature (Ref.
123201): 4.1 - 11.9, mean 6.9 °C (based on 47 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00309 (0.00191 - 0.00501), b=3.33 (3.20 - 3.46), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
营养阶层 (Ref.
69278): 3.9 ±0.63 se; based on food items.
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): High vulnerability (58 of 100).
Nutrients (Ref.
124155): Calcium = 9.71 [1.80, 49.75] mg/100g; Iron = 0.404 [0.092, 1.262] mg/100g; Protein = 16.5 [13.7, 19.1] %; Omega3 = 0.644 [0.200, 2.420] g/100g; Selenium = 14.5 [3.8, 46.2] μg/100g; VitaminA = 13 [3, 56] μg/100g; Zinc = 0.299 [0.147, 0.566] mg/100g (wet weight);
