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板鰓亜鋼(サメとエイ類) (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); 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 / 深さの範囲 / distribution range 生態学
海 深海魚; 深さの範囲 1 - 1375 m (Ref. 26938), usually ? - 128 m (Ref. 55306). Subtropical; 43°N - 9°N, 96°W - 58°W (Ref. 54904)
A ray-shaped shark. Head narrowing to distinct neck at base of pectoral fins (Ref. 26938). Body shape (shape guide): other.
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.
Life cycle and mating behavior 成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Ovoviviparous, embryos feed solely on yolk (Ref. 50449).
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 (参照 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).
栄養段階 (参照 69278): 4.5 ±0.6 se; based on diet studies.
回復力 (参照 120179): 低い, ４．５年～１４年の倍増期間の最小個体群 (Fec assumed to be <100).
Fishing Vulnerability (Ref. 59153): Very high vulnerability (90 of 100). 🛈
