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) >
Arhynchobatidae (Softnose skates)
Etymology: sexoculata: Named for the color pattern of the species, the six white blotches (ocelli) on the dorsal disc..
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋 居于水底的; 深度上下限 ? - 150 m (Ref. 123274).
Northwest Pacific: Simushir Island, Kuril Islands.
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 35.2 cm TL 雄鱼/尚未辨别雌雄; (Ref. 123274); 28.6 cm TL (female)
简单描述
型态特徵 | 形态测量图
This medium-sized species (ca. max. size 80.0 cm TL, 55.0 cm DW) is distinguished by the following set of characters: dorsal ground color is reddish-brown or greenish-brown, with three pairs of white blotches on disc located beside eyes, and on shoulders and posterior half of disc; lateral margin of tail with 4 or 5 pairs of white blotches located at the tail origin, midpoint, D1 origin, and on inter-dorsal space; ventral surface is almost entirely white; dark blotch around cloaca, dark bands along mid ventral line of tail; dorsal surface of disc with a single scapular thorn, 3-4 nuchal thorns; tail with 20-24 regularly arranged thorns; the median row of thorns discontinuous, no mid-dorsal thorns; orbital thornlets along medial rim of orbit; dorsal surface of disc and tail with fine prickles; prickle band on mid-disc extending along sides of tail; prickles on pectoral fin base relatively sparse; ventral surface is uniformly smooth; disc width 63.1-65.6% TL, length 50.6-53.5% TL; anterior projection (snout to maximum width) 29.7-32.2% TL; head length (dorsal aspect) 18.9-20.6% TL; snout broad and moderately short, preoral length 11.1-14.1% TL, supported by slender, flexible unsegmented cartilage; snout angle 103-119º; eyes rather large with eye diameter 0.22-0.24 times head length, 1.00-1.11 times between orbits; tail relatively long (but shorter than disc width), length 51.5-54.1% TL and 0.79-0.86 times DW, width at first dorsal fin origin 3..8-4.2% tail length; predorsal caudal vertebrae 86-93 (Ref. 123274).
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Misawa, R., A.M. Orlov, S.Y. Orlova, I.I. Gordeev, H. Ishihara, T. Hamatsu, Y. Ueda, K. Fujiwara, H. Endo and Y. Kai, 2020. Bathyraja (Arctoraja) sexoculata sp. nov., a new softnose skate (Rajiformes: Arhynchobatidae) from Simushir Island, Kuril Islands (western North Pacific), with special reference to geographic variations in Bathyraja (Arctoraja) smirnovi. Zootaxa 4861(4):515-543. (Ref. 123274)
人类利用
更多信息
俗名同种异名新陈代谢捕食者生态毒物学繁殖成熟度产卵场产卵群集孕卵数卵卵的发育
年龄范围成长体长-体重体长-体长体长-频率形态测量图型态特徵仔鱼稚鱼动力学入添量丰度BRUVS
参考文献养殖养殖信息品种遗传学Electrophoreses遗传率疾病加工NutrientsMass conversion
合作者照片Stamps, Coins Misc.声音神经毒速度泳型鳃区Otoliths脑重体重比眼睛色素
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特别资料
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网络资源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
营养阶层 (Ref.
69278): 3.7 ±0.6 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (25 of 100).
