(كوسه ها و سپرماهيان) (sharks and rays) >
Rhinopristiformes (Shovelnose rays) >
Rhinobatidae (Guitarfishes)
Etymology: Rhinobatos: Greek, rhinos = nose + Greek, batis, -idos = a ray (Raja sp.) (Ref. 45335); manai: Named for Dr. Ralph Mana of the University of Papua New Guinea..
Environment: milieu / climate zone / depth range / distribution range
بوم شناسي
دريايي; تغييرات عمق 191 - 290 m (Ref. 117108). Tropical
Southwest Pacific: Papua New Guinea.
Size / Weight / سن
Maturity: Lm ? range ? - ? cm
Max length : 73.1 cm TL جنس نر / بدون خواص جنسي; (Ref. 117108)
توصيف مختصر
ريخت شناسي | ريخت ستجي بوسيله انداره گيري
This species is distinguished by the following set of characters: a wedge-shaped disc, with its
dorsal surface covered in minute dermal denticles but without thorns; long snout, its length 3.6 times interspiracular distance; moderately large orbit, its diameter 1.7 times spiracle length; oblique nostrils, its length 1.6 times internarial distance; the anterior nasal flaps are inserted into internarial space well away from nostril margin; posterior nasal flaps are broad; ridges of rostral cartilage well-separated dorsally and almost parallel; narrow prebranchial sensory-pore patch, extending to first gill slit; distance between first gill slits is 1.5 times distance between fifth gill slits; distance between fifth gill slits is 3.4 times in ventral head length; long postscapular sensory canal, not grooved and extending more than three-quarters distance to pectoral-fin insertions; moderately tall dorsal fins; pelvic fin's inner margin is shorter than its base; interdorsal distance is more than 3.1 times first dorsal-fin base; outer spiracular fold is distinctly larger than the inner fold; dorsal margin of caudal fin ca. 2 times preventral margin; post-synarcual (free) vertebral centra 171; total vertebral centra 180; nasal lamellae 52; dorsal disc is brownish and covered with well defined rusty brown spots and blotches and poorly defined white spots with greyish edges (Ref. 117108).
Life cycle and mating behavior
بلوغ | تولید مثل | تخم ریزی | تخم ها | Fecundity | توزاد ( لارو)
White, W.T., P.R. Last and G.J.P. Naylor, 2016. Rhinobatos manai sp. nov., a new species of guitarfish (Rhinopristiformes: Rhinobatidae) from New Ireland, Papua New Guinea. Zootaxa 4175(6):588-600. (Ref. 117108)
وضعيت در فهرست قرمز IUCN (Ref. 130435)
خطر برای انسان ها
Harmless
استفاده انسانی
اطلاعات بيشتر
اسامي عاممترادفسوخت و سازشکارچیانسم شناسي بوم زيستيتولید مثلبلوغتخم ریزیSpawning aggregationFecundityتخم هانمو تخم
Age/Sizeرشدطول - وزنطول - طولنوسانات طولیريخت ستجي بوسيله انداره گيريريخت شناسيتوزاد ( لارو)پويايي لارويبازسازیفراوانيBRUVS
مراجعآبزي پرورينمايه آبزي پرورينژادهاژنتيكElectrophoresesوارثبيماري هافرآوریNutrientsMass conversion
همكارانعکس هاStamps, Coins Misc.صداهاسيگواتراسرعتنوع شناگریمنطقه آبششيOtolithsمغزهابینایی
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [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).
Trophic level (Ref.
69278): 3.7 ±0.4 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): Moderate to high vulnerability (49 of 100).
