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Amblyraja jenseni (Bigelow & Schroeder, 1950)

Shorttail 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.
Amblyraja jenseni   AquaMaps   Data sources: GBIF OBIS
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Amblyraja jenseni
Female picture by Orlov, A.


United States (contiguous states) country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from New England (Ref. 117245). Also Ref. 4926, 8630, 40643.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/us.html
National Fisheries Authority: http://www.nmfs.gov
Occurrences: Occurrences Point map
Main Ref: Coad, B.W. and J.D. Reist, 2018
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) 鰩目 (Skates and rays) > Rajidae (Skates) 鰩科 (Skates)
Etymology: Amblyraja: Greek, amblys = darkness + Latin, raja, -ae = ray (Raja sp.) (Ref. 45335).

Issue
Provisionally retained as valid but treated as junior synonym of A. hyperborea by Weigmann (2016, Ref. 106604) due to strong morphological similarity and preliminary molecular data. Further work is needed to resolve this issue (Ref. 118749).

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

海洋 深海底的; 深度上下限 165 - 3000 m (Ref. 114953).   深水域; 67°N - 39°N, 72°W - 10°W (Ref. 114953)

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

Western Atlantic: Nova Scotia, Canada to southern New England, USA; Eastern Atlantic: Iceland (Ref. 12462); North Atlantic: Labrador Sea and off British Isles (Ref. 114953)
西大西洋: 加拿大的新斯科舍省到美國新英格蘭南部。 東大西洋: 冰島.(參考文獻 12462)

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 74.3 cm TL 雄魚/尚未辨別雌雄; (Ref. 4926); 85.0 cm TL (female)

簡短描述 檢索表 | 型態特徵 | 形態測量圖

Lacks large thorns on anterior margins and mid posterior parts of pectorals and on either side of mid-dorsal ridge on the disc. Upper surface plain light brown, either grayish or of chocolate hue, darker along margins of fins. Lower surface brownish gray, grayish white or perhaps pure white (Ref. 6902).
在前緣上缺乏大的刺與在胸鰭的較後面的部分之中與在體盤上的背部中央脊的任一側邊上。 上表皮純淡褐色, 或淺灰色的或巧克力色, 比較深色的沿著鰭的邊緣。 下表面灰褐色, 白灰色或也許全白色的.(參考文獻 6902)

生物學特性     字彙 (例如 epibenthic)

Benthic (Ref. 58426). Deep-water species. Prefers higher temperatures. Feeds on small fishes and crustaceans (Ref. 6902). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205). Maximum depth reported taken from Ref. 117245. It may be captured as by-catch in deep water fisheries, but due to its depth preference, it is less likely to be vulnerable (Ref. 117245).

底棲的.(參考文獻 58426) 深水域種。 偏愛較高的溫度。 吃小魚與甲殼動物。 (參考文獻 6902) 卵生的.(參考文獻 50449) 卵在貝殼上有像觸角一樣的突出。 (參考文獻 205)

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

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).西大西洋: 加拿大的新斯科舍省到美國新英格蘭南部。 東大西洋: 冰島.(參考文獻 12462)

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

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)

  無危 (LC) ; Date assessed: 19 July 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): 3.1 - 4, mean 3.6 (based on 69 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5010   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00302 (0.00141 - 0.00645), b=3.24 (3.07 - 3.41), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
營養階層 (Ref. 69278):  3.7   ±0.57 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).