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Rajella challengeri Last & Stehmann, 2008

Challenger skate
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Rajella challengeri   AquaMaps   Data sources: GBIF OBIS
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Image of Rajella challengeri (Challenger skate)
Rajella challengeri
Male picture by Graham, K.

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) 鰩目 (Skates and rays) > Rajidae (Skates) 鰩科 (Skates)
Etymology: Rajella: Latin, raja, -ae = a sting ray (Raja sp.) (Ref. 45335);  challengeri: Named for FRV Challenger, used to survey the deepwater demersal fish resources of Tasmania in the 1980s..
More on authors: Last & Stehmann.

Environment: milieu / climate zone / depth range / distribution range 生態學

海洋 底中水層性; 深度上下限 860 - 1500 m (Ref. 114953). ; 32°S - 45°S, 130°E - 154°E (Ref. 114953)

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Eastern Indian Ocean and Southwest Pacific: New South Wales to Great Australian Bight (Australia) (Ref. 114953).

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 56.1 cm TL 雄魚/尚未辨別雌雄; (Ref. 75644)

生物學特性     字彙 (例如 epibenthic)

A benthic species on continental slope (Ref. 114953). Observed to be still a juvenile at 49.5 cm TL, smallest at 16.7 cm TL, adult males 52.1-56.1 cm TL (Ref. 75644).

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


主要參考資料 Upload your references | 參考文獻 | 合作者 : McEachran, John | 合作者

Last, P.R. and M.F.W. Stehmann, 2008. Rajella challengeri sp. nov., a new deepwater skate from southern Australia. pp. 135-144. In Last, P.R., W.T. White, J.J. Pogonoski and D.C. Gledhill (eds.): Descriptions of new Australian skates (Batoidea: Rajoidei) pg. 135-144. CSIRO marine and atmospheric research paper no. 021. (Ref. 75644)

IUCN 瀕危狀態 (Ref. 130435)

  無危 (LC) ; Date assessed: 18 February 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

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Estimates based on models

Preferred temperature (Ref. 123201): 2 - 5, mean 4.3 °C (based on 39 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 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).
營養階層 (Ref. 69278):  3.6   ±0.5 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 (Preliminary low fecundity).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (42 of 100).