أشلاق (القروش و الشفانين) (sharks and rays) >
Squaliformes (Sleeper and dogfish sharks) >
Centrophoridae (Gulper sharks)
Etymology: Centrophorus: centr[um] (L.), prickle or sharp point; phorus, from phoreus (Gr.), bearer or carrier, referring to grooved spines on dorsal fins. (See ETYFish); atromarginatus: atro-, from ater (L.), black; marginatus (L)., bordered, referring to black edging on all or most fins. (See ETYFish).
More on author: Garman.
Environment: milieu / climate zone / depth range / distribution range
البيئة
بحري قاعية المعيشة; نطاق العمق 183 - 450 m (Ref. 31367). Deep-water
Indo-West Pacific: Gulf of Aden, Japan, Taiwan, and northern Papua New Guinea. Often confused with Centrophorus granulosus.
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 87.0 cm TL ذكر/ مختلط الجنس; (Ref. 31367)
الأشواك الظهرية (المجموع) : 2; شوكة شرجية: 0. Adults with tips of dorsal fins black, prominently marked from base of fins (Ref. 31367).
A little-known deepwater dogfish found on the upper continental slopes to at least 450 m (Ref. 31367). Ovoviviparous (Ref. 50449). Probably taken in bottom trawls (Ref. 31367). Caught by demersal longline fisheries operating in deepwater areas. Utilised for its meat, fins (low value) and liver oil (very high value) (Ref.58048).
Life cycle and mating behavior
Maturities | التكاثر | Spawnings | Egg(s) | Fecundities | Larvae
Ovoviviparous, embryos feed solely on yolk (Ref. 50449). Distinct pairing with embrace (Ref. 205). Gives birth to a single pup. Born at 28-36 cm TL (Ref.58048).
Compagno, L.J.V. and V.H. Niem, 1998. Squalidae. Dogfish sharks. p. 1213-1232. In K.E. Carpenter and V.H. Niem (eds.) FAO Identification Guide for Fishery Purposes. The Living Marine Resources of the Western Central Pacific. FAO, Rome. (Ref. 31367)
IUCN Red List Status (Ref. 130435)
استخدامات بشرية
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Preferred temperature (Ref.
123201): 11.2 - 18.8, mean 14.2 °C (based on 105 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00263 (0.00121 - 0.00572), b=3.18 (2.99 - 3.37), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 4.3 ±0.3 se; based on size and trophs of closest relatives
المرونه (Ref.
120179): منخفض, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 4.5-14 سنة (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (55 of 100).
