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); uyato: uyat or uyato, derived from agullats or ahullats, vernacular for dogfish sharks in the Mediterranean, based on a Mediterranean Squalus (Squalidae), now applied to this gulper shark from the eastern Indian Ocean and north Atlantic. (See ETYFish).
More on author: Rafinesque.
Issue
Discussion on generic placement in Ref. 27638.
Environment: milieu / climate zone / depth range / distribution range
البيئة
بحري قاعية المعيشة; نطاق العمق 50 - 1400 m (Ref. 247), usually 200 - ? m (Ref. 247). Deep-water; 43°N - 43°S
Western Central Atlantic: Gulf of Mexico. Eastern Atlantic: western Mediterranean and Gibraltar to Senegal, Côte d'Ivoire to Nigeria, Cameroon to Angola, northern Namibia. Indian Ocean: southern Mozambique, uncertain records from India; Western Australia (Ref. 6871). Western Pacific: Australia (Ref. 6871); occurrence in Taiwan needs validation. Validity of this species is uncertain (Ref. 27638, not in Ref. 35766).
Length at first maturity / الحجم / وزن / العمر
Maturity: Lm 82.0, range 75 - 89 cm
Max length : 110 cm TL ذكر/ مختلط الجنس; (Ref. 27000); أعلا وزن تم نشرة: 7.3 kg (Ref. 40637)
الأشواك الظهرية (المجموع) : 2; شوكة شرجية: 0. A small, slender gulper shark with a long, narrow snout, a short 1st dorsal fin and a high 2nd dorsal fin; pectoral rear tips usually very long; denticles small and flat (Ref. 5578). Brownish-grey above, light grey below (Ref. 5578).
A common deepwater dogfish of the outer continental shelves and upper slopes, on or near the bottom. Adults feed on bony fishes and squid. Males mature by 80 cm TL (Ref. 94782). Ovoviviparous (Ref. 50449). Utilized dried salted for human consumption and probably for fishmeal and liver oil (Ref. 247).
Ovoviviparous, embryos feed solely on yolk (Ref. 50449). Number of young usually only 1. Size at birth between 40 and 50 cm (Ref. 247). Distinct pairing with embrace (Ref. 205).
White, W.T., D.A. Ebert and L.J.V. Compagno, 2008. Description of two new species of gulper sharks, genus Centrophorus (Chondrichthyes: Squaliformes: Centrophoridae) from Australia. pp. 1-21. In P.R. Last, W.T. White and J.J. Pogonoski (eds). Descriptions of new Australian chondrichthyans. CSIRO Marine and Atmospheric Research Paper no. 22. 365 p. (Ref. 76933)
IUCN Red List Status (Ref. 130435)
استخدامات بشرية
مصائد: غير مهمة تجارياً
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Preferred temperature (Ref.
123201): 7.3 - 16.7, mean 11.6 °C (based on 823 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00251 (0.00161 - 0.00393), b=3.17 (3.04 - 3.30), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
مستوى غذائي (Ref.
69278): 4.5 ±0.60 se; based on food items.
المرونه (Ref.
120179): منخفظ جدا, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أكثر من 14 سنة (Fec=1).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (66 of 100).
Nutrients (Ref.
124155): Calcium = 6.64 [1.37, 35.02] mg/100g; Iron = 0.306 [0.071, 0.999] mg/100g; Protein = 20 [18, 22] %; Omega3 = 0.307 [0.113, 0.983] g/100g; Selenium = 16.3 [5.1, 48.0] μg/100g; VitaminA = 12.5 [2.8, 57.5] μg/100g; Zinc = 0.261 [0.127, 0.502] mg/100g (wet weight);
