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Elasmobranchii 板鰓亞綱 (鯊魚與魟魚) (sharks and rays) > Squatiniformes (Angel sharks) 扁鯊目 (Angel sharks) > Squatinidae (Angel sharks) 琵琶鮫科 (Angel sharks)
Etymology: Squatina:Latin for skate, which angel sharks superficially resemble, presumably tautonymous with Squalus squatina Linnaeus 1758 (no species mentioned) (See ETYFish); dumeril:In honor of French zoologist André Marie Constant Duméril (1774-1860) “in testimony of [Lesueur’s] remembrance and esteem” (not in honor of Duméril’s equally famous zoologist son Auguste, born in 1812) [presumably a noun in apposition, without the patronymic “i”] (See ETYFish). Eponymy: Dr André Marie Constant Duméril (1774–1860) was a French zoologist who qualified as a physician (1793). [...] (Ref. 128868), visit book page. More on author: Lesueur.
Environment: milieu / climate zone / 深度上下限 / distribution range 生態學
海洋 深海底的; 深度上下限 1 - 1375 m (Ref. 26938), usually ? - 128 m (Ref. 55306). 亞熱帶的; 43°N - 9°N, 96°W - 58°W (Ref. 54904)
Western Atlantic: southern New England, USA to the Gulf of Mexico, Jamaica and Venezuela. Also in Columbia (Ref. 26938). 西大西洋: 美國新英格蘭南部到墨西哥灣，牙買加與委內瑞拉。 也在哥倫比亞.(參考文獻 26938)
Length at first maturity / 大小 / 重量 / 年齡
成熟度: Lm99.5, range 92 - 107 cm Max length : 152 cm TL 雄魚/尚未辨別雌雄; (Ref. 247); common length : 100.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 6077)
A ray-shaped shark. Head narrowing to distinct neck at base of pectoral fins (Ref. 26938). Body shape (shape guide): other. 一隻魟形的鯊魚。 開頭狹窄到頸部明顯在胸鰭基底鰭.(參考文獻 26938)
Occurs on the outer continental shelf and the upper slope. Found from shoreline to depths of 1,375 m (Ref. 26938). Benthic burrower; feeds on small bottom fishes, crustaceans and mollusks (Ref. 27549). Ovoviviparous. Will bite when captured and can inflict nasty lacerations with its trap-like jaws and pointed teeth.
Vaz, D.F.B. and M.R. De Carvalho, 2013. Morphological and taxonomic revision of species of Squatina from the Southwestern Atlantic Ocean (Chondrichthyes: Squatiniformes: Squatinidae). Zootaxa 3695(1):001-081. (Ref. 95520)
Phylogenetic diversity index (參考文獻 82804): PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00402 - 0.01136), b=3.06 (2.91 - 3.21), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
營養階層 (參考文獻 69278): 4.5 ±0.6 se; based on diet studies.
回復力 (參考文獻 120179): 低的, 最小族群倍增時間4.5 - 14 年 (Fec assumed to be <100).
Fishing Vulnerability (Ref. 59153): Very high vulnerability (90 of 100). 🛈
