Bathyraja pacifica

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Bathyraja pacifica Last, Stewart & Séret, 2016

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drawing shows typical species in Arhynchobatidae.

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: Bathyraja: Greek, bathys = deep + Latin, raja, -ae = a ray (Raja sp) (Ref. 45335);  pacifica: Named for the distribution of this species near the western rim of the Pacific Ocean.

Environment: milieu / climate zone / depth range / distribution range ນິເວດວິທະຍາ

; ສັດທະເລ ກ່ຽວກັບ(ຢູ່)ຊັ້ນນ້ຳໃນທະເລທີ່ເໜີອພື້ນດິນ; ລະດັບຄວາມເລິກ 1760 - 1789 m (Ref. 110384).   Deep-water

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

Southwest Pacific: New Zealand.

ຂະໜາດ / ນ້ຳໜັກ / Age

Maturity: Lm ?  range ? - ? cm
Max length : 122 cm TL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 110384)

Short description ສະລີລະວິທະຍາ | ການວັດແທກຮູບຮ່າງລັກສະນະພາຍນອກຂອງດິນ,ສັດ,ປາ…

This large species (to 122 cm TL) is distinguished by the following set of characters (based on the unique holotype specimen): strongly depressed and quadrangular disc with narrowly rounded apices, width 64% TL, 1.1 times its length; rather short tail, its length 0.8 in distance from snout tip to rear of cloaca, and width 1.8 times height at its midlength, 1.5 times at first dorsal-fin origin; pre-upper jaw length 18% TL, which is 2.3 times internasal width; ventral head length 32% TL; long and broad snout, length 4.0 times interorbital width, supported by slender flexible median cartilage; angle of snout 83°; narrow mouth 7% TL; orbit diameter 57% interorbital width; first dorsal-fin height is 1.7 in its base length; procaudal length 2.3 times first dorsal-fin base length, 4.8 times caudal-fin length; dorsal disc and almost entirely devoid of fine denticles; disc thornless, other than narrow alar thorn patches; tail with 16 (one lost) thorns in single median row; total pectoral radials 84-85; trunk centra 34; predorsal centra 105; total centra ca. 136; tooth rows in upper jaw 29; the skin is thin and almost entirely translucent white, no dark areas on body, sensory pores indistinct (not dark edged) (Ref. 110384).

ຊີວະສາດ     ຄຳແປສັບ (ຕ.ຢ. epibenthic)

Life cycle and mating behavior ການຈະເລີນເຕັມໄວ | ການສືບພັນ | ການວາງໄຂ່ | ໄຂ່ | ຄວາມດົກຂອງໄຂ່ປາ | ຕົວອ່ອນ

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

Last, P.R., A.L. Stewart and B. Séret, 2016. A new temperate deepwater skate of the genus Bathyraja (Rajoidei: Arhynchobatidae) from the South-West Pacific. Zootaxa 4132(1):107-117. (Ref. 110384)

IUCN Red List Status (Ref. 123251)

  Least Concern (LC) ; Date assessed: 21 June 2017

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

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ແຫຼ່ງອີນເຕີເນັດ

Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
ຊັ້ນເຂດຮ້ອນ (Ref. 69278):  4.1   ±0.7 se; based on size and trophs of closest relatives
ຄວາມຢືດຢຸ່ນ (Ref. 120179):  ຕຳ່ຫຼາຍ, ປະຊາກອນຕຳ່ສຸດທີ່ໃຊ້ເວລາສອງເທົ່າຫຼາຍກວ່າ 14 ປີ (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  High to very high vulnerability (74 of 100) .