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) >
Arhynchobatidae (Softnose skates)
Etymology: Bathyraja: Greek, bathys = deep + Latin, raja, -ae = a ray (Raja sp) (Ref. 45335); cousseauae: Named for María Berta Cousseau of Dept. de Ciencias Marinas, Universidad Nacional de Mar del Plata.
Eponymy: Dr Maria Berta Cousseau is an Argentine ichthyologist who is Professor Emeritus at the Department of Sciences, Universidad Nacional de Mar del Plata, Argentina. [...] (Ref. 128868), visit book page.
環境： 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
海洋 居於水底的; 深度上下限 119 - 284 m (Ref. 55502). 亞熱帶的
Southwestern Atlantic: Off northern Patagonian, off Mar del Plata, Argentina. Southeast Pacific: Chile.
大西洋西南部: 外海的北方南美南端地方又外海的 Mar del Plata ，阿根廷。
大小 / 重量 / 年齡
成熟度: Lm ? range ? - ? cm
Max length : 86.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 55502)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
This species is distinguished by having the following characters: a large and very distinct round pale area ocellus-like, margined with dark brown on posterior part of each pectoral base of the upper side of the disc; upper surface of disc fully covered with numerous small spinules, also on interorbital area, tail, dorsal fins, and posterior pelvic lobes; larger individuals with scattered spinules distributed in central parts of the disc; ocular thorns absent; continuous row of 21-27 median thorns from nuchal; region to first dorsal fin; males have elongated, slender rod-shaped claspers; dorsal fin densely spinulose close to the end of tail and with no space between them (Ref. 55502).
Body shape (shape guide): other.
這種被藉著區別有下列的特徵: 一個大與非常明顯的圓灰白的區域像眼狀斑一樣的, 邊緣在體盤的上側面的每個胸鰭基底的較後面的部分上有深褐色的; 體盤上表面完全覆蓋著很多小的小刺了, 也在眼間骨區域，尾部，背鰭與在後部的腹鰭葉上; 較大的個體有分散的分佈於體盤的中央部份的小刺; 眼睛的刺不存在; 21-27個中央的刺的連續列從頸背的; 對第一背鰭的區域; 雄魚有瘦長的, 細長的竿-形狀的釦緊物; 背鰭濃密小刺狀接近尾巴末端而且沒有間隔的空間他們.(參考文獻 55502)
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
大西洋西南部: 外海的北方南美南端地方又外海的 Mar del Plata ，阿根廷。
Díaz de Astarloa, J.M. and E. Mabragaña, 2004. Bathyraja cousseauae sp. n.: a new softnose skate from the southwestern Atlantic (Rajiformes, Rajidae). Copeia 2004(2):326-335. (Ref. 55502)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
無危 (LC) ; Date assessed: 07 February 2019
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基於模型的估計
首選溫度 (參考文獻
123201): 4.5 - 6.4, mean 5.8 °C (based on 37 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=0.00562 (0.00296 - 0.01067), b=3.13 (2.97 - 3.29), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (參考文獻
69278): 4.0 ±0.7 se; based on size and trophs of closest relatives
回復力 (參考文獻
120179): 低的, 最小族群倍增時間4.5 - 14 年 (Preliminary K or Fecundity.).
釣魚的脆弱性 (Ref.
59153): Moderate to high vulnerability (54 of 100).
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