أشلاق (القروش و الشفانين) (sharks and rays) >
Squatiniformes (Angel sharks) >
Squatinidae (Angel sharks)
Etymology: Squatina: Latin for skate, which angel sharks superficially resemble, presumably tautonymous with Squalus squatina Linnaeus 1758 (no species mentioned). (See ETYFish); tergocellatoides: -oides, Greek suffix meaning like, resembling, having the form of: described as “closely allied” to S. tergocellata but with a different color pattern, much longer tail, more numerous snout tubercles, and no medial series of dorsal tubercles. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
البيئة
بحري القاع. Subtropical; 28°N - 22°N, 118°E - 122°E (Ref. 54912)
Northwest Pacific: Taiwan Straits.
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 63.0 cm TL ذكر/ مختلط الجنس; (Ref. 247)
Known only from two specimens. Ovoviviparous (Ref. 50449). Other details of habitat and biology unknown.
Life cycle and mating behavior
Maturities | التكاثر | Spawnings | Egg(s) | Fecundities | Larvae
Ovoviviparous, embryos feed solely on yolk (Ref. 50449).
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)
خطر للأنسان
Traumatogenic
استخدامات بشرية
مصائد: غير ذات اهمية
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00293 - 0.01558), b=3.07 (2.88 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 3.9 ±0.5 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 (45 of 100).
