वर्गीकरण / नाम
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इलाज़मौबरांकी (शारक और रेज़) (sharks and rays) >
Myliobatiformes (Stingrays) >
Rhinopteridae (Cownose rays)
Etymology: Rhinoptera: Greek, rhinos = nose + Greek,pteron = fin, wing (Ref. 45335).
Eponymy: Colonel Dr Atmaram Sadashiv Grandin Jayakar (1844–1911) was an Indian surgeon and entomologist. [...] (Ref. 128868), visit book page.
More on author: Boulenger.
पर्यावरण: पर्यावरण / जलवायु क्षेत्र / गहराई सीमा / वितरण सीमा
पारिस्थितिकी
समुद्री बेनथोपिलाजिक. Tropical
Indo-West Pacific: widespread; from South Africa to the Philippines; north to Ryukyu Is. and south to eastern Indonesia. However, it may comprise of two closely related species based on genetic findings where the forms possibly differ in the shape of the head and tail and robustness of the bodies.
आकार / वज़न / आयु
परिपक्व अवधि: Lm ? range ? - 78 cm
Max length : 90.0 cm WD पुल्लिंग / अलिंग; (Ref. 114953)
Benthopelagic in the open ocean and often aggregating in large shoals (Ref. 114953). . Ovoviviparous (Ref. 50449).
जीवन चक्र और संभोग व्यवहार
परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | उपजाऊपन | लार्वा
Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449).
Randall, J.E., 1995. Coastal fishes of Oman. University of Hawaii Press, Honolulu, Hawaii. 439 p. (Ref. 11441)
आईयूसीएन रेड लिस्ट स्थिति (Ref. 130435: Version 2025-2 (Global))
मनुष्यों के लिए ख़तरा
Harmless
मानव उपयोग
साधन
विशेष रिपोर्ट
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इंटरनेट स्रोत
मॉडल पर आधारित अनुमान
जातिवृति विविधता सूचकांक (संदर्भ
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01148 (0.00468 - 0.02819), b=2.98 (2.76 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
ट्रॉफिक स्तर (संदर्भ
69278): 3.6 ±0.5 se; based on size and trophs of closest relatives
लौटाव (संदर्भ
120179): निम्न, न्यूनतम जनसंख्या दुगनी होने का समय 4.5 - 14 वर्ष। (Fec assumed to be <100).
मछली पकड़ने की भेद्यता (Ref.
59153): Very high vulnerability (83 of 100).
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