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: Raja: Latin, raja, -ae = a sting ray (Raja sp.) (Ref. 45335).
More on author: Lowe.
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋 深海底的; 深度上下限 ? - 500 m. 深水域; 33°N - 31°N
Eastern Atlantic: endemic to Madeira; possibly Azores. Nominal records from western Africa and the Canary Islands could not be verified and are probably misidentifications.
東大西洋: 馬得拉群島的特有種; 可能地亞速群島。 來自非洲西部與加納利群島的分類命名紀錄無法確認而且是可能是誤鑑。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 85.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 2683); common length : 50.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 2683)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 0; 臀棘: 0. Upper surface wholly prickly, underside almost entirely prickly; orbital thorns separate, a regular row of 21-25 large thorns from nape to first dorsal fin; upper surface dark brown with a constant pattern of irregular light spots forming broad undulating transverse bands with narrower unspotted bands between, underside white, but grey on snout and broad dark margin to disc from behind midpoint of anterior margin, also blackish at tip of tail (Ref. 3167).
上表皮长满刺的, 下面几乎全部是刺; 眼窝的刺分开, 固定的一列 21-25个大的从后颈到第一背鳍的刺; 上表皮深褐色的具有一个形成宽的波浪状的横纹的不规则淡色的斑点的不变的样式中间夹杂着无斑点的狭窄条纹，腹面白色的, 但是灰色的吻与体盘边缘深色的从前缘的中点后面, 也黑色的在尾尖.(参考文献 3167)
Feeds on all kinds of benthic animals (Ref. 3167). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).
吃各种的底栖动物。 (参考文献 3167) 卵生的.(参考文献 50449) 卵有在贝壳上的像触角一样的突出。 (参考文献 205)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
Oviparous (Ref. 3167). Paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).東大西洋: 馬得拉群島的特有種; 可能地亞速群島。 來自非洲西部與加納利群島的分類命名紀錄無法確認而且是可能是誤鑑。
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
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00269 (0.00124 - 0.00582), b=3.26 (3.09 - 3.43), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.5 ±0.37 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): Moderate to high vulnerability (54 of 100).
