इलाज़मौबरांकी (शारक और रेज़) (sharks and rays) >
Lamniformes (Mackerel sharks) >
Odontaspididae (Sand tiger sharks)
Etymology: Odontaspis: Etymology not explained, presumably odontos (Gr.), tooth, and aspis (Gr.), shield, perhaps referring to how teeth comprise a prominent narrow cusp provided with two or more small “side teeth” (translation), i.e., cusplets, which, with some imagination, could be said to “shield” the main cusp; another explanation: aspis (L.), viper, perhaps referring to outwardly pointing teeth of O. ferox, like that of a viper (See ETYFish); noronhai: In honor of Adolfo César de Noronha (1873-1963), late director of the Funchal Museum (Madeira), where holotype is housed (See ETYFish).
Eponymy: Adolfo César de Noronha (1873–1963) was a naturalist and librarian who was Director of the Funchal Museum in Madeira (where the type specimen of the shark is housed). [...] (Ref. 128868), visit book page.
पर्यावरण: पर्यावरण / जलवायु क्षेत्र / गहराई सीमा / वितरण सीमा
पारिस्थितिकी
समुद्री pelagic-oceanic; गहराई सीमा 60 - 1000 m (Ref. 10722). Deep-water; 31°N - 34°S, 163°W - 27°W (Ref. 54682)
Eastern Atlantic: Madeira and southern Brazil. Eastern Central Pacific: off Hawaii. May eventually be recorded from the Western Central Pacific (Ref. 13568). Questionably occurring in Seychelles.
प्रथम परिपक्वता पर लंबाई / आकार / वज़न / आयु
परिपक्व अवधि: Lm 325.0 range ? - ? cm
Max length : 367 cm TL पुल्लिंग / अलिंग; (Ref. 247); 326.0 cm TL (female)
Snout conical and bulbous, tip rounded. Eyes large and ovoid, nictitating membrane absent. Body color uniform chocolate brown, all fins except pectorals with thin dark edging along posterior margin.
Body shape (shape guide): fusiform / normal.
A deepwater shark inhabiting the continental and insular slopes (Ref. 50449, 58302). Pelagic (Ref. 58302). Ovoviviparous, embryos feeding on yolk sac and other ova produced by the mother (Ref. 50449). Feeding habits unknown.
जीवन चक्र और संभोग व्यवहार
परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | उपजाऊपन | लार्वा
Exhibit ovoviparity (aplacental viviparity), with embryos feeding on other ova produced by the mother (oophagy) after the yolk sac is absorbed (Ref. 50449). Distinct pairing with embrace (Ref. 205).
Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247)
आईयूसीएन रेड लिस्ट स्थिति (Ref. 130435: Version 2025-2 (Global))
मनुष्यों के लिए ख़तरा
Harmless
मानव उपयोग
मात्स्यिकी: बाबत संभावित दिलचस्पी
साधन
विशेष रिपोर्ट
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इंटरनेट स्रोत
मॉडल पर आधारित अनुमान
पसंदीदा तापमान (संदर्भ
123201): 8.6 - 15.2, mean 12 °C (based on 13 cells).
जातिवृति विविधता सूचकांक (संदर्भ
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
ट्रॉफिक स्तर (संदर्भ
69278): 4.4 ±0.4 se; based on size and trophs of closest relatives
लौटाव (संदर्भ
120179): बहुत नीचे, न्यूनतम जनसंख्या दुगनी समय अवलागत 14 महीने। (Fec assumed to be <10).
मछली पकड़ने की भेद्यता (Ref.
59153): Very high vulnerability (90 of 100).
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