(كوسه ها و سپرماهيان) (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
بوم شناسي
دريايي موجوداتی که در محدوده وسیعی از آبهای آزاد از نزدیک بستر و یا روی کف بستر، در قسمت های میان آبی تا سطح آب و در برخی گونه ها با قابلیت پرواز، زندگی و تغذیه می کنند.; تغييرات عمق 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).
Size / Weight / سن
Maturity: Lm ?  range ? - ? cm
Max length : 40.1 cm TL جنس نر / بدون خواص جنسي; (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 | تولید مثل | Spawnings | Egg(s) | Fecundities | توزاد ( لارو)
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)
وضعيت در فهرست قرمز IUCN (Ref. 130435)
خطر برای انسان ها
Harmless
استفاده انسانی
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
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).
Trophic level (Ref.
69278): 3.5 ±0.1 se; based on size and trophs of closest relatives
جهندگی (Ref.
120179): پايين ، كم, كمينه زمان لازم براي دو برابر شدن جمعيت 5/4 – 14 سال (Preliminary low fecundity).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (30 of 100).