(كوسه ها و سپرماهيان) (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Pseudotriakidae (False catsharks)
Etymology: Planonasus: planus (L.), flat; nasus (L.), nose, referring to its soft, flat snout. (See ETYFish); parini: In honor of the late Nikolai Vasil’evich Parin (1932-2012), P. P. Shirov Institute of Oceanology, Russian Academy of Sciences, ichthyologist and chief scientist of the “memorable” cruise 17 of the research vessel Vityaz in 1988/89, during which holotype was collected. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
بوم شناسي
دريايي موجوداتی که در اعماق زیر 200 متر زندگی و تغذیه می کنند; تغييرات عمق 1000 - 1120 m (Ref. 92921). Deep-water
Northwestern Indian Ocean: off the Socotra Islands, south of Yemen and east of the Horn of Africa.
Size / Weight / سن
Maturity: Lm ? range ? - ? cm
Max length : 53.4 cm TL (female); بيشينه وزن گزارش شده: 560.00 g (Ref. 92921)
توصيف مختصر
ريخت شناسي | ريخت ستجي بوسيله انداره گيري
This small deep-water pseudotriakid species is distinguished by the following set of characters: soft body; bell-shaped head with a broadly parabolic snout; preorbital snout length 1.5-1.9 times the eye length; preoral length 0.7-0.8 times the mouth width, 1.4-1.5 times the prenarial snout length; eye length 1.9-2.3 times the nostril width; relatively broad head, width at middle gill slits 10-16% of TL; preorbital snout length 1.0-1.7 times the interorbital space (integumental) and 2.1-2.3 (skeletal), respectively; head length 2.0-2.5 times the mouth width, 9.8-10.9 times the nostril width, 2.8-3.3 times the length of preventral caudal-fin margin; length of pectoral-fin anterior margin 2.1-2.2 times the pectoral base length; length of first dorsal-fin inner margin 0.4-0.5 times the pectoral-fin base length; second dorsal-fin base length 13% of TL; color: plain dusky with fins and ventral snout somewhat darker, free rear tip of first dorsal fin marked white; each jaw with about 110-120 rows of very small tri- to multicuspidate teeth; monospondylous trunk vertebrae centra 50-52, diplospondylous precaudal centra 41, total centra about 115-140 (Ref. 92921).
Life cycle and mating behavior
بلوغ | تولید مثل | تخم ریزی | تخم ها | Fecundity | توزاد ( لارو)
Weigmann, S., M.F.W. Stehmann and R. Thiel, 2013. Planonasus parini n. g. and n. sp., a new genus and species of false cat sharks (Carchariniformes, Pseudotriakidae) from the deep northwestern Indian Ocean off Socotra Islands. Zootaxa 3609(2):163-181. (Ref. 92921)
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 = 1.0625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00170 (0.00068 - 0.00426), b=3.21 (2.99 - 3.43), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.9 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (41 of 100).
