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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); nebulosa: Latin for cloudy or dark, referring to its brown-black marbled coloration (See ETYFish).
More on author: Regan.
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
Biển gần đáy; Mức độ sâu 0 - 200 m (Ref. 54907). Deep-water; 47°N - 22°N, 119°E - 142°E (Ref. 54907)
Northwest Pacific: southeastern Sea of Japan to Taiwan, including Japan, Korea, China. Reported from the northern shelf of the South China Sea (Ref. 12082).
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ?  range ? - ? cm
Max length : 163.0 cm TL (female)
Found on the continental shelves. Ovoviviparous (Ref. 50449).
Life cycle and mating behavior
Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Các trứng | Sự sinh sản | Ấu trùng
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: Version 2024-1)
Threat to humans
Traumatogenic
Human uses
Các công cụ
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Estimates based on models
Preferred temperature (Ref.
123201): 11.8 - 23.5, mean 18.1 °C (based on 106 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00295 - 0.01551), b=3.07 (2.88 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Mức dinh dưỡng (Ref.
69278): 4.1 ±0.6 se; based on size and trophs of closest relatives
Thích nghi nhanh (Ref.
120179): thấp, thời gian nhân đôi của chủng quần tối thiểu là 4.5 - 14 năm (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).