分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鳃亚纲 (鲨鱼与 鱼) (sharks and rays) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Etymology: Rajella: Latin, raja, -ae = a sting ray (Raja sp.) (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋 深海底的; 深度上下限 600 - 2300 m (Ref. 117245), usually 1300 - 1400 m (Ref. 11284). 深水域; 3°C - 4°C (Ref. 117245); 73°N - 37°N, 75°W - 5°W (Ref. 119696)
North Atlantic and adjacent Arctic: ne USA to Rockall Trough (British Isles) (Ref. 114953).
東大西洋: 丹麥-海峽, Rockall 溝槽沿著愛爾蘭,比斯開灣北部與西撒哈拉的里奧德奧羅, 但是可能在區域各處在很深的水域中。 西大西洋: 45 ° N 北方.(參考文獻 11284)
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 70.0, range 65 - 75 cm
Max length : 90.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 4426)
Lower surface of the discus dark brown, darker in upper surface. Without definite markings, outer edges of pectoral and pelvic fins shading to darker (Ref. 6902).
体盘下表面深褐色的, 比较深色的在上表皮中。 没有固定的斑纹,胸鳍与腹鳍的外缘颜色变化成比较深色的.(参考文献 6902)
Found on deeper continental slopes and probably abyssal plains, mainly deeper than 1,400 m (Ref. 3167). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205). It is caught as by-catch in low numbers by deep trawl fisheries (Ref. 117245).
栖息于较深的大陆斜坡了与可能深海平原 , 主要深度超过 1,400 公尺.(参考文献 3167) 卵生的.(参考文献 50449) 卵在贝壳上有像触角一样的突出。 (参考文献 205)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Oviparous (Ref. 3167). Paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).東大西洋: 丹麥-海峽, Rockall 溝槽沿著愛爾蘭,比斯開灣北部與西撒哈拉的里奧德奧羅, 但是可能在區域各處在很深的水域中。 西大西洋: 45 ° N 北方.(參考文獻 11284)
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)
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Estimates based on models
Preferred temperature (Ref.
123201): 3.4 - 6.6, mean 5.4 °C (based on 13 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [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).
营养阶层 (Ref.
69278): 3.3 ±0.45 se; based on food items.
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): High vulnerability (56 of 100).
Nutrients (Ref.
124155): Calcium = 4.19 [0.62, 81.71] mg/100g; Iron = 0.299 [0.028, 4.019] mg/100g; Protein = 15.1 [13.0, 17.2] %; Omega3 = 0.46 [0.19, 1.15] g/100g; Selenium = 20.5 [3.5, 95.1] μg/100g; VitaminA = 3.87 [0.29, 52.88] μg/100g; Zinc = 0.28 [0.02, 3.23] mg/100g (wet weight);