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: Orbiraja: Name from Latin word 'orbis' meaning circle, referring to the paired, ring-like pectoral-fin ocelli in all three nominal species.
Eponymy: Lieutenant Frederick Thomas Powell (1806–1859) of the Indian Navy was one of Robert Moresby’s officers on ‘HMS Palinurus’ (1829–1833) and on ‘HMS Benares’ surveying the Chagos Archipelago (1837–1838). [...] (Ref. 128868), visit book page.
More on author: Alcock.
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋 居于水底的; 深度上下限 15 - 460 m (Ref. 114953). 熱帶; 23°N - 5°N, 71°E - 99°E (Ref. 114953)
Northern Indian Ocean: Arabian Sea (India) to Bay of Bengal (Myanmar).
印度洋: 亞丁灣; 印度特拉凡哥爾海岸; 而且馬達班灣。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - 35 cm
Max length : 21.0 cm WD 雄鱼/尚未辨别雌雄; (Ref. 26165); 22.0 cm WD (female)
Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205); approximately 6 cm long (Ref. 114953). Utilized for its meat (Ref.58048).
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, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).印度洋: 亞丁灣; 印度特拉凡哥爾海岸; 而且馬達班灣。
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)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)
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Estimates based on models
Preferred temperature (Ref.
123201): 15.4 - 17.7, mean 16.5 °C (based on 17 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [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): 3.7 ±0.6 se; based on size and trophs of closest relatives
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): Moderate vulnerability (41 of 100).
