أشلاق (القروش و الشفانين) (sharks and rays) >
Lamniformes (Mackerel sharks) >
Mitsukurinidae (Goblin shark)
Etymology: Mitsukurina: -ina (L.), belonging to: University of Tokyo zoologist Kakichi Mitsukuri (1858-1909), who placed holotype (provided by Alan Owson, see species) of this “very remarkable shark” in Jordan’s “hands to be identified, figured, and described”. (See ETYFish); owstoni: In honor of Alan Owston (1853-1915), English businessman, yachtsman, collector of Asian wildlife, and resident of Yokohama, Japan, who secured holotype from a fisherman (named for Owston at the request of Kakichi Mitsukuri, see genus). (See ETYFish).
More on author: Jordan.
Environment: milieu / climate zone / depth range / distribution range
البيئة
بحري قاعية المعيشة; نطاق العمق 30 - 1300 m (Ref. 43278), usually 270 - 960 m (Ref. 43278). Deep-water; 48°N - 55°S, 180°W - 180°E
Western Atlantic: Guyana (Ref. 6871), Suriname (Ref. 13608, 11228) and French Guiana. Eastern Atlantic: France (Bay of Biscay), Madeira, Portugal, and South Africa. Western Indian Ocean: off South Africa. Western Pacific: Japan, Australia (South Australia, New South Wales), New Zealand (Ref. 26346). Eastern Pacific: USA (southern California) (Ref. 43278).
Length at first maturity / الحجم / وزن / العمر
Maturity: Lm 293.0, range 264 - 322 cm
Max length : 617 cm TL ذكر/ مختلط الجنس; (Ref. 83323); common length : 200 cm TL ذكر/ مختلط الجنس; (Ref. 5217)
الأشواك الظهرية (المجموع) : 0; شوكة شرجية: 0. Flat, bladelike, elongated snout, tiny eyes without nictitating eyelids, soft, flabby body, slender, very long cusped teeth in long, protrusible jaws, long caudal fin without a ventral lobe (Ref. 247). Pinkish-white with bluish fins, becoming brownish grey after death (Ref. 5578, 11228).
Found on outer continental shelves and upper slopes, but rarely in shallow water close inshore (Ref. 247, 43278). Jaws are highly specialized for rapid projection from the head to snap up small animals (Ref. 247). Feeds on jacopever, pelagic octopus and crabs (Ref. 5578). Ovoviviparous, embryos feeding on yolk sac and other ova produced by the mother (Ref. 50449). Probably slow-moving and neutrally buoyant (Ref. 6871). Utilized dried salted (Ref. 247)
Life cycle and mating behavior
Maturities | التكاثر | Spawnings | Egg(s) | Fecundities | Larvae
Exhibit ovoviparity (aplacental viviparity), with embryos feeding on other ova produced by the mother (oophagy) after the yolk sac is absorbed (Ref. 247, 50449). Distinct pairing with embrace (Ref. 205).
Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247)
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): 3.8 - 13.7, mean 8.3 °C (based on 1037 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 4.1 ±0.62 se; based on food items.
المرونه (Ref.
120179): منخفظ جدا, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أكثر من 14 سنة (Fec assumed to be <10).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
