(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).
Issue
Considered as a valid subspecies by some authors (iRef. 106604, 118749) or as a synonym of Leucoraja garmani. Needs further assessment.
Environment: milieu / climate zone / depth range / distribution range
بوم شناسي
دريايي نزديك كف زي; تغييرات عمق ? - 457 m (Ref. 58018). Deep-water
Western Atlantic: Mexico.
Size / Weight / سن
Maturity: Lm ?  range ? - ? cm
Life cycle and mating behavior
Maturities | تولید مثل | Spawnings | Egg(s) | Fecundities | توزاد ( لارو)
Nelson, J.S., E.J. Crossman, H. Espinosa-Pérez, L.T. Findley, C.R. Gilbert, R.N. Lea and J.D. Williams, 2004. Common and scientific names of fishes from the United States, Canada, and Mexico. American Fisheries Society, Special Publication 29, Bethesda, Maryland. ix, 386 p. + 1 CD. (Ref. 52299)
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
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): 3.6 ±0.2 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 (Assumed low fecundity (RF)).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (48 of 100).