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Bathyraja cousseauae Díaz, de, Astarloa & Mabragaña, 2004

Joined-fins skate
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Bathyraja cousseauae   AquaMaps   Data sources: GBIF OBIS
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Image of Bathyraja cousseauae (Joined-fins skate)
Bathyraja cousseauae
Male picture by Reyes, P.


Argentina country information

Common names: Joined-fins skate, Raya Aletas Juntas
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Type locality, off northern Patagonian, INIDEP 719 (holotype of Bathyraja cousseauae, 61.7 cm TL, juvenile male) (Ref. 55502).
National Checklist: Argentina
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ar.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Díaz de Astarloa, J.M. and E. Mabragaña, 2004
National Database:

Common names from other countries

分類 / Names 俗名 | 同種異名 | Catalog of Fishes(, ) | 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..

Environment: milieu / climate zone / depth range / distribution range 生態學

海洋 居於水底的; 深度上下限 119 - 284 m (Ref. 55502).   亞熱帶的

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

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

Maturity: 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).
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)

生物學特性     字彙 (例如 epibenthic)


Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 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。

主要參考資料 Upload your references | 參考文獻 | 合作者 : McEachran, John | 合作者

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)

  無危 (LC) ; Date assessed: 07 February 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的




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Estimates based on models

Preferred temperature (Ref. 115969): 4.5 - 6.4, mean 5.8 (based on 37 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00513 (0.00253 - 0.01042), b=3.12 (2.95 - 3.29), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref. 93245).
營養階層 (Ref. 69278):  4.0   ±0.7 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  低的, 最小族群倍增時間4.5 - 14 年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (54 of 100).