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Pavoraja umbrosa Last, Mallick & Yearsley, 2008

Dusky skate
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Pavoraja umbrosa   AquaMaps   Data sources: GBIF OBIS
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Image of Pavoraja umbrosa (Dusky skate)
Pavoraja umbrosa
Male picture by Graham, K.

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: Pavoraja: Latin, pavo = peacock + Latin, raja, -ae = a sting ray (Raja sp.) (Ref. 45335);  umbrosa: Name from Latin 'umbrosus' for shady, refers to the uniform greyish dorsal surface of the disc..
More on authors: Last, Mallick & Yearsley.

Environment: milieu / climate zone / depth range / distribution range 生态学

海洋 深海底的; 深度上下限 360 - 731 m (Ref. 76878). ; 27°S - 33°S, 153°E - 156°E (Ref. 114953)

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Western Pacific: off New South Wales, eastern Australia.

Length at first maturity / 大小 / 重量 / 年龄

Maturity: Lm ?, range 35 - ? cm
Max length : 36.9 cm TL 雄鱼/尚未辨别雌雄; (Ref. 76878)

生物学特性     字汇 (例如 epibenthic)

A demersal species found on upper continental slope. Males reaches maturity at ca. 32-35 cm TL, smallest juvenile 8cm TL. Discarded bycatch of local trawl fisheries (Ref. 114953)

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


主要参考文献 Upload your references | 参考文献 | 合作者 : McEachran, John | 合作者

Last, P.R., S. Mallick and G.K. Yearsley, 2008. A review of the Australian skate genus Pavoraja Whitley (Rajiformes: Arhynchobatidae). Zootaxa 1812:1-45. (Ref. 76878)

世界自然保护联盟红皮书 (Ref. 130435)

  最不相关 (LC) ; Date assessed: 15 May 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

 





人类利用

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Trophic ecology
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Estimates based on models

Preferred temperature (Ref. 123201): 6.8 - 12.6, mean 8.3 °C (based on 51 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5156   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00550 (0.00273 - 0.01106), b=3.10 (2.93 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  3.7   ±0.7 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 (Preliminary low fecundity).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (27 of 100).