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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.

Classification / Names ຊື່ສາມັນ | ຄຳສັບຄ້າຍຄືກັນ | Catalog of Fishes(ຕະກຸນ, ຊະນິດ) | ITIS | CoL | WoRMS | Cloffa

ກຸ່ມປາກະດູກອ່ອນ (ເຊັ່ນ: ປາສະຫລາມ, ປາຜາໄລ) (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 ນິເວດວິທະຍາ

ສັດທະເລ ກ່ຽວກັບ(ຢູ່)ຊັ້ນນ້ຳໃນທະເລທີ່ເໜີອພື້ນດິນ; ລະດັບຄວາມເລິກ 360 - 731 m (Ref. 76878). Tropical; 27°S - 33°S, 153°E - 156°E (Ref. 114953)

ການແຜ່ກະຈາຍ ປະເທດ | ເຂດ FAO | ລະບົບນິເວດ | ການປະກົດຕົວ | Point map | ການແນະນຳ | Faunafri

Western Pacific: off New South Wales, eastern Australia.

Length at first maturity / ຂະໜາດ / ນ້ຳໜັກ / Age

Maturity: Lm ?, range 35 - ? cm
Max length : 36.9 cm TL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 76878)

ຊີວະສາດ     ຄຳແປສັບ (ຕ.ຢ. 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 | ການສືບພັນ | Spawnings | Egg(s) | Fecundities | ຕົວອ່ອນ

Main reference Upload your references | ເອກະສານອ້າງອີງ | ຜູ້ປະສານງານ : McEachran, John | ຜູ້ຮ່ວມມື

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)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 15 May 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

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ຂໍ້ມູນຕື່ມອີກ

Trophic ecology
ລາຍການອາຫານ
Diet compositions
Food consumptions
Food rations
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Ecology
ນິເວດວິທະຍາ
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
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Abundances
Life cycle
ການສືບພັນ
Maturities
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Spawnings
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Egg(s)
Egg developments
ຕົວອ່ອນ
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Distribution
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ສະໝອງ
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ປະເພດການລອຍ
Swimming speeds
Visual pigment(s)
ສຽງຂອງປາ
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Toxicities (LC50s)
Genetics
ກຳມະພັນ
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ສາຍພັນ
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Stamps, coins, misc.
Taxonomy
ຊື່ສາມັນ
ຄຳສັບຄ້າຍຄືກັນ
ສະລີລະວິທະຍາ
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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).
ຊັ້ນເຂດຮ້ອນ (Ref. 69278):  3.7   ±0.7 se; based on size and trophs of closest relatives
ຄວາມຢືດຢຸ່ນ (Ref. 120179):  ຕຳ່, ປະຊາກອນຕຳ່ສຸດທີ່ໃຊ້ເວລາສອງເທົ່າ 4.5 - 14 ປີ (Preliminary low fecundity).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (27 of 100).