Lớp phụ Cá sụn (cá mập và cá đuối) (sharks and rays) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Etymology: Leucoraja: Greek, leykos = white + Latin, raja = a fish, Raja sp. (Ref. 45335); pristispina: Name from Greek 'pristis' for saw and the Latin 'spina' for thorn or backbone, refers to the rows of thorns on the midline of the disc and tail..
More on authors: Last, Stehmann & Séret.
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
Biển Sống nổi và đáy; Mức độ sâu 202 - 504 m (Ref. 75643). Tropical; 13°S - 30°S, 111°E - 123°E (Ref. 114953)
Eastern Indian Ocean: off Australia and eastern Indonesia (Ref. 114953).
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ?  range ? - ? cm
Max length : 40.1 cm TL con đực/không giới tính; (Ref. 75643); 37.8 cm TL (female)
Lengths of adolescent males ranged from 32.6-34.1 cm TL, with smallest juvenile a neonate 9.4 cm TL; adult males 34.8-40.1 cm TL (Ref. 75643).
Life cycle and mating behavior
Maturities | Sự tái sinh sản | Spawnings | Egg(s) | Fecundities | Ấu trùng
Last, P.R., M.F.W. Stehmann and B. Séret, 2008. Leucoraja pristispina sp. nov., a new deepwater skate from Western Australia. pp. 145-154. In Last, P.R., W.T. White, J.J. Pogonoski and D.C. Gledhill (eds.): Descriptions of new Australian skates (Batoidea: Rajoidei) pg. 145-154. CSIRO marine and atmospheric research paper no. 021. (Ref. 75643)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Các công cụ
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Estimates based on models
Preferred temperature (Ref.
123201): 11.3 - 13.5, mean 11.8 °C (based on 17 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00339 (0.00167 - 0.00688), b=3.25 (3.09 - 3.41), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Mức dinh dưỡng (Ref.
69278): 3.5 ±0.1 se; based on size and trophs of closest relatives
Thích nghi nhanh (Ref.
120179): thấp, thời gian nhân đôi của chủng quần tối thiểu là 4.5 - 14 năm (Preliminary low fecundity).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (30 of 100).