(كوسه ها و سپرماهيان) (sharks and rays) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Etymology: leptoura: Name from Greek 'leptos' meaning fine, thin or delicate and 'oura' for tail, refers to its somewhat filamentous tail..
More on authors: Last & Gledhill.
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 - 735 m (Ref. 75645). Tropical; 11°S - 33°S, 111°E - 124°E (Ref. 114953)
Eastern Indian Ocean: off western Australia (Ref. 114953).
Size / Weight / سن
Maturity: Lm ?  range ? - ? cm
Max length : 48.6 cm TL جنس نر / بدون خواص جنسي; (Ref. 75645); 55.5 cm TL (female)
Inhabits upper continental slope (Ref. 114953). Length of adolescent males 32.7-46.3 cm TL, some individuals with no clasper development at 35.6 cm TL; males mature at 39.4-48.6 cm TL, with smallest juvenile at 14.7 cm TL (Ref. 75645).
Life cycle and mating behavior
Maturities | تولید مثل | Spawnings | Egg(s) | Fecundities | توزاد ( لارو)
Last, P.R. and D.C. Gledhill, 2008. Two new skates of the genus Okamejei (Rajoidei: Rajiidae) from south-east Indian Ocean. In Last. P.R., W.T. White, J.J. Pogonoski and D.C. Gledhill (eds) : Descriptions of new Australian skates (Batoidea: Rajoidei) pg. 119-134. CSIRO marine and atmospheric research paper no. 021. (Ref. 75645)
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): 8.8 - 13, mean 11.3 °C (based on 59 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00302 (0.00141 - 0.00645), b=3.24 (3.07 - 3.41), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 4.1 ±0.6 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): Moderate vulnerability (42 of 100).