(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); longiventralis: Name from Latin 'longi' for long and 'ventralis'; referring to the very long anterior lobe of the pelvic fin..
Environment: milieu / climate zone / depth range / distribution range
بوم شناسي
دريايي ناحیه ای از منطقه اقیانوسی با عمق بین 1000 تا 4000 متر. موجوداتی که در آبهای آزاد بین اعماق 1000 تا 4000 متر زندگی و تغذیه می کنند; تغييرات عمق 660 - 953 m (Ref. 91035). Tropical; 14°S - 20°S, 166°E - 178°W (Ref. 114953)
Western Pacific: Fiji and Vanuatu.
Size / Weight / سن
Maturity: Lm ? range ? - ? cm
Max length : 43.4 cm TL جنس نر / بدون خواص جنسي; (Ref. 91035)
توصيف مختصر
ريخت شناسي | ريخت ستجي بوسيله انداره گيري
This species (probably of medium size) is distinguished by the following set of characters: presence of a single rudimentary preorbital thorn; velvety dorsal and ventral surfaces of disc which are covered with fine denticles; long and slender tail is velvety and without enlarged thorns; lateral tail folds are not expanded distally, always narrower than tail width; nasal lobes not greatly expanded, width of nasal curtain 7.6-8.0% TL; relatively broad mouth, its width more than 66% of maximum width of nasal curtain; anterior pelvic-fin lobe is longer than posterior lobe; dorsal and ventral surfaces are dark, almost uniformly purplish grey; faint whitish spots over pores along the anterior margins of disc; total pectoral-fin radials 64-65, monospondylous centra 26-27, total diplospondylous centra 109-118, total number of centra 135-145 (Ref. 91035).
A demersal species found on mid-insular slopes. Known from few specimens. Hatching size at ca. 17 cm TL. Life history unknown (Ref. 114953).
Life cycle and mating behavior
بلوغ | تولید مثل | تخم ریزی | تخم ها | Fecundity | توزاد ( لارو)
Séret, B. and P.R. Last, 2012. New deep water skates of the genus Notoraja Ishiyama, 1958 (Rajoidei, Arhynchobatidae) from the southwest Pacific. Zoosystema, 34 (2):319-341. (Ref. 91035)
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
Preferred temperature (Ref.
123201): 1.8 - 2.7, mean 2.2 °C (based on 1549 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [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 ±0.7 se; based on size and trophs of closest relatives
جهندگی (Ref.
120179): متوسط, كمينه زمان لازم براي دو برابر شدن جمعيت 4/1 – 4/4 سال (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (33 of 100).
