分類 / 名稱
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: Rajella: Latin, raja, -ae = a sting ray (Raja sp.) (Ref. 45335).
Taxonomic Remarks
Specific name amended to R. leoparda in accordance with ICZN Article 34.2 by Weigmann et al., 2014 (Ref.96993).
環境： 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
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 / 年齡
成熟度: Lm ? range ? - ? cm
Max length : 95.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 106604)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
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).
Body shape (shape guide): other.
大的魟魚具有一個中等長度的吻，小的眼 , 與一個平坦的體盤; 尾部大約與身體一樣長; 在上表皮包括吻上的小的不明顯又淡的刺.(參考文獻 5578) 中等的灰色到褐色的背面, 時常有深色的斑點; 白色的或腹地具有暗色的區塊色斑.(參考文獻 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).
發現於較深的大陸棚及大陸斜坡水域了。 (參考文獻 4426) 捕食底部甲殼動物，鼠魚，鼠尾魚，鱈魚，燈籠魚，海洋鋼筆，墨魚與多毛類的蠕蟲。 (參考文獻 5578) 卵生的。 明顯的成對出現。 幼魚可能傾向跟隨大的個體, 例如他們的母親.(參考文獻 205) 卵為長方形鞘囊具有僵硬的觸角沈積在沙灘或泥灘的角落.(參考文獻 205) 卵鞘是 7.4 公分長與 7.4 公分寬的.(參考文獻 41249) 被鱈魚底拖網捕獲了。 (參考文獻 5578)
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
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)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
無危 (LC) ; Date assessed: 31 August 2020
人類使用
漁業: 商業性
工具
特別的報告
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基於模型的估計
首選溫度 (參考文獻
123201): 4.1 - 11.9, mean 6.9 °C (based on 47 cells).
系統發育多樣性指數 (參考文獻
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00316 (0.00192 - 0.00522), b=3.32 (3.18 - 3.46), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
營養階層 (參考文獻
69278): 3.9 ±0.63 se; based on food items.
回復力 (參考文獻
120179): 低的, 最小族群倍增時間4.5 - 14 年 (Fec assumed to be <100).
釣魚的脆弱性 (Ref.
59153): High vulnerability (58 of 100).
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營養素 (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);
