分類 / Names
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).
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 居於水底的; 深度上下限 400 - 735 m (Ref. 127873). 亞熱帶的
Southeast Pacific: northern Peru to central Chile.
東南太平洋: 外海的智利。
大小 / 重量 / 年齡
Maturity: Lm ?  range ? - ? cm
Max length : 80.0 cm TL (female)
簡短描述
型態特徵 | 形態測量圖
This species is distinguished by having the anterior disc margin distinctly undulating; pectoral-fin apices narrowly or abruptly rounded; preorbital length times orbital length 2.00-2.68; preorbital length times interorbital length 1.02-1.30; interorbital space times orbit length 1.20–-1.50; orbital length times spiracle length 2.00-2.53; with a median row of thorns originating from the posterior half of the disc; number of median thorns 26-30; interdorsal thorns 1 or 2; the dorsal disc surface and tail with finely textured denticles on adults confined to a narrow median band originating just posterior to mid-disc and extending along the tail; teeth arranged in quincunx; predorsal tail vertebrae 62; total predorsal vertebrae 93; pectoral-fin radial count 72. Colouration: uniformly colored on their dorsal and ventral surfaces, no blotches, spots, or other distinctive patterns which is consistent at all sizes from young to adult (Ref. 127873).
Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).
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
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). Eggs have horn-like projections on the shell (Ref. 205).東南太平洋: 外海的智利。
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: 07 February 2019
人類使用
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年龄/大小成長長度-重量長度-長度長度-頻率形態測量圖型態特徵仔魚稚魚動力學入添量豐度BRUVS
參考文獻養殖養殖資訊品種遺傳學Electrophoreses遺傳率疾病加工NutrientsMass conversion
合作者照片Stamps, Coins Misc.聲音神經毒速度泳型鰓區Otoliths腦重體重比眼睛色素
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Estimates based on models
Preferred temperature (Ref.
123201): 7.3 - 10.6, mean 9.4 °C (based on 6 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 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): 3.9 ±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 (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (52 of 100).