أشلاق (القروش و الشفانين) (sharks and rays) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Etymology: panayensis: Named for its type locality, Panay island..
Environment: milieu / climate zone / depth range / distribution range
البيئة
بحري قاعية التغذية و المعيشة. Tropical
Western Central Pacific: the Philippines.
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 30.4 cm TL ذكر/ مختلط الجنس; (Ref. 126270)
وصف مختصر
الوصف الخارجي | قياسات المظهر الخارجي
This species can be distinguished from its congeners by the following set of characters: tail moderately is long, slender and weakly tapering posteriorly, length 51.0% of TL; first dorsal fin (D1) origin to tail tip 21.2% of TL; interdorsal space is rather short, distance 67.0% of D1 base length; caudal-fn base length is moderate, 1.3 times D1 base length; snout is rather short, moderately acute and pointed, preorbital snout length 13.7% of TL, preoral snout length 14.3% of TL, prenarial snout length 11.3% of TL; dorsal head length 20.7% of TL, the ventral head length 28.6% of TL; orbits and eyeballs are large, orbit diameter 1.3 times interorbital width, eyeball length (horizontal diameter) 1.2 times interorbital width; tail thorns are distinct, three rows in adult male; single nuchal thorn; trunk vertebrae 28 while predorsal tail vertebrae 43. Colouration: dorsal surface of disc pale brown, margin yellowish to pale brown; numerous yellowish spots and black fecks sparsely scattered on the dorsal disc, but not forming patches; dorsal disc no ocellated markings; snout area translucent; ventral surface of disc broadly white, the margin pale brown, darkly pigmented at pectoral-fin bases, posterior insertions of pectoral fins, nasal curtain, around cloaca, and sensory pore openings; ventral disc sensory pores in a W-shaped” distribution pattern, absent on abdominal region and near pelvic-fn base; clasper with external boss, cleft, funnel, pseudorhipidion, rhipidion, shield, spike, sentinel, and terminal bridge; the clasper skeleton with three dorsal terminal cartilages, single ventral terminal cartilage, two accessory terminal cartilages (accessory terminal 1 “Y-shaped”) (Ref. 126270).
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
Misawa, R., R.P. Babaran and H. Motomura, 2022. Okamejei panayensis sp. nov., a new skate (Rajiformes: Rajidae) from the Philippines. Ichthyological Research (Ref. 126270)
IUCN Red List Status (Ref. 130435)
استخدامات بشرية
مزيد من المعلومات
الأسماء الشائعةمرادفاتالأيضمفتريساتعلم السميات البيئيةالتكاثرالنضجوضع البيضتجمعات وضع البيضالخصوبةبيضتطور البيضة
العمر/ الحجمنموالطول-الوزنالطول-الطولالطول- التردداتقياسات المظهر الخارجيالوصف الخارجيLarvaeحركة انتقال اليرقاتتوظيفالوفرةBRUVS
مراجعالأستزراع المائيملف الأستزراع المائيسلالاتجينيElectrophoresesالتوريثالأمراضمعالجةNutrientsMass conversion
المتعاونينصورStamps, Coins Misc.اصواتالتسمم باكل السمكسرعةنوع السباحةمنطقة الخياشيمعظمة الأذندماغرؤية
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 3.9 ±0.6 se; based on size and trophs of closest relatives
المرونه (Ref.
120179): وسيط, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 1.4-4.4 سنة (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (20 of 100).
