Classification / Names
आम नाम | उपशब्द | Catalog of Fishes(वर्ग, प्रजाति) | ITIS | CoL | WoRMS | Cloffa
इलाज़मौबरांकी (शारक और रेज़) (sharks and rays) >
Rhinopristiformes (Shovelnose rays) >
Rhinidae (Wedgefishes)
Etymology: Rhynchobatus: Greek, rhingchos = snout + Greek, batis, -idos = a sting ray (Raja sp.) (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
पारिस्थितिकी
समुद्री; गहराई सीमा ? - 70 m (Ref. 114953). Tropical
वितरण
देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | Point map | भूमिका | Faunafri
Western Pacific: Singapore and Indonesia.
आकार / वज़न / Age
Maturity: Lm ? range ? - ? cm
Max length : 81.0 cm TL पुल्लिंग / अलिंग; (Ref. 109575)
Short description
आकृति विज्ञान | मौरफोमैटरिक्स
This species is the smallest of the wedgefishes (to 81 cm TL), it has also the lowest vertebral count (less than 107 centra). It is distinguished from its congeners by the following characters: a long, hastate snout; very strongly undulate anterior pectoral-fin margin; dorsal mainly dark and distinctively marked with white blotches; spots and streaks, with a dark cruciate marking on the interorbit; a prominent white border around the body margin; snout tip lacks dark blotches; absence of the black pectoral-fin marking; it is similar with the much larger Atlantic species (Rhynchobatus luebberti) with well-developed rostral spines, but these spines are confined to the snout tip (vs. being more numerous and extending in paired rows along the rostral ridges nearly to the eyes) (Ref. 109575).
A poorly known benthic species with restricted distribution, probably coastal. Males mature at ca. 71 cm TL, born at ca. 14 cm TL. Embryos with yolk sacs at 20.9-23.6 TL; juvenile male at 39.5 cm TL, adolescent at 64.2 cm TL and adult at size greater than 70.5 cm TL; immature females at 41.5 and 60.9 cm TL (Ref. 114953).
Life cycle and mating behavior
परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | Fecundity | लार्वा
Last, P.R., P.M. Kyne and L.J.V. Compagno, 2016. A new species of wedgefish Rhynchobatus cooki (Rhinopristoformes, Rhinidae) from the Indo-West Pacific. Zootaxa 4139(2):233-247. (Ref. 109575)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
अधिक जानकारी
देशऐफ ऐ ओ क्षेत्रEcosystemsसंयोगभूमिकाStocksपारिस्थितिकीआहारखाद्य पदार्थआहार खपतखोराक
आम नामउपशब्दचपायचयपरभक्षीईकोटोकसीकोलौजीपुनरुत्पत्तिपरिपक्व अवधिमछलीऔ का अंडे देनाSpawning aggregationFecundityअंडेEgg development
Age/Sizeबाढ़Length-weightLength-lengthLength-frequenciesमौरफोमैटरिक्सआकृति विज्ञानलार्वालारवल गतिकीभर्तीबहुतायतBRUVS
संदर्भजलीयकृषिजलीयकृषि रूपरेखाखींचआनुवंशिकीElectrophoresesहैरेटिबिलटीबीमारीप्रक्रमणNutrientsMass conversion
सहयोगीयोतस्वीरेStamps, Coins Misc.ध्वनिसिगुयटिरारफ्तारतैरने के प्रकारगिल क्षेत्रOtolithsदिमागदृष्टि
साधन
Special reports
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इंटरनेट स्रोत
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5049 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00372 (0.00166 - 0.00830), b=3.11 (2.91 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.4 ±0.6 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (52 of 100).
