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) >
Rajiformes (Skates and rays)
鰩目 (Skates and rays) >
Rajidae (Skates)
鰩科 (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
生態學
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 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 85.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 2683); common length : 50.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 2683)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 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).
上表皮長滿刺的, 下面幾乎全部是刺; 眼窩的刺分開, 固定的一列 21-25個大的從後頸到第一背鰭的刺; 上表皮深褐色的具有一個形成寬的波浪狀的橫紋的不規則淡色的斑點的不變的樣式中間夾雜著無斑點的狹窄條紋﹐腹面白色的, 但是灰色的吻與體盤邊緣深色的從前緣的中點後面, 也黑色的在尾尖.(參考文獻 3167)
Feeds on all kinds of benthic animals (Ref. 3167). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).
吃各種的底棲動物。 (參考文獻 3167) 卵生的.(參考文獻 50449) 卵有在貝殼上的像觸角一樣的突出。 (參考文獻 205)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
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)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
人類使用
漁業: 商業性
工具
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網路資源
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=0.00263 (0.00118 - 0.00585), b=3.26 (3.09 - 3.43), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.5 ±0.37 se; based on food items.
回復力 (Ref.
120179): 低的, 最小族群倍增時間4.5 - 14 年 (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (54 of 100).
