(كوسه ها و سپرماهيان) (sharks and rays) >
Rajiformes (Skates and rays) >
Arhynchobatidae (Softnose skates)
Etymology: Notoraja: Greek, noton = back + Latin, raja = fish, Raja sp. (Ref. 45335); sapphira: From the Greek sappheiros in reference to its intense blue dorsal coloration resembling that
of a dark sapphire (gemstone)..
More on authors: Séret & Last.
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 1195 - 1313 m (Ref. 81757). Subtropical; 25°S - 35°S, 167°E - 169°E (Ref. 114953)
West Pacific: Coral Sea and Tasman Sea. Known only from the five type specimens collected on the slopes of the Norfolk Ridge. Also from New Caledonia (Ref. 86942, Ref. 114953).
Size / Weight / سن
Maturity: Lm ? range ? - ? cm
Max length : 36.0 cm TL جنس نر / بدون خواص جنسي; (Ref. 81757); 41.3 cm TL (female)
توصيف مختصر
كليدهاي شناسايي | ريخت شناسي | ريخت ستجي بوسيله انداره گيري
This medium-size (413 mm TL) species is distinguished by the following set of characters: heart-shaped disc with a short projected snout tip; disc slightly wider than long, its width 51-54% of TL, and length 47-48% TL; short snout, its preorbital snout length 12-15% TL, preoral snout length 12-15% TL; interorbital width 3.6-4.1% TL; interspiracular width 6.0-6.6% TL; long and slender tail, its length from posterior margin of cloaca to tip of tail 54-58% TL; dorsal surface of disc largely free of dermal denticles; rostrum with some denticles, without thorns; a small but distinct preorbital thorn on anterior upper orbital rim; denticles present on posterior mid-dorsal trunk; tail prickly with dense, irregular and randomly arranged thorns; mid-dorsal row on tail hardly distinct from the rest of thorn pattern; naked ventral surface of disc and tail; upper jaw with 29-36 tooth rows, lower with 28-32; pectoral-fin radials 67-70; monospondylous trunk centra 23-25; predorsal caudal diplospondylous centra 70-74; total number of centra 126-134; dorsal surface rich blue, uniform, with a narrow blackish outer margin; ventral surface of disc and tail brownish black, gill slits darker, cloaca opening and mouth corners whitish (Ref. 81757).
Life cycle and mating behavior
Maturities | تولید مثل | Spawnings | Egg(s) | Fecundities | توزاد ( لارو)
Séret, B. and P.R. Last, 2009. Notoraja sapphira sp. nov. (Rajoidei: Arhynchobatidae), a new deepwater skate from the slopes of the Norfolk Ridge (South-West Pacific). Zootaxa 2153:24-34. (Ref. 81757)
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
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00550 (0.00273 - 0.01106), b=3.10 (2.93 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.7 ±0.7 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): Low to moderate vulnerability (31 of 100).
