分类 / 名称
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鳃亚纲 (鲨鱼与 鱼) (sharks and rays) >
Squatiniformes (Angel sharks)
琵琶鮫目 (Angel sharks) >
Squatinidae (Angel sharks)
琵琶鮫科(Angel sharks) (Angel sharks)
Etymology: Squatina: Latin for skate, which angel sharks superficially resemble, presumably tautonymous with Squalus squatina Linnaeus 1758 (no species mentioned) (See ETYFish); guggenheim: In honor of the Guggenheim Institución (presumably the present-day John Simon Guggenheim Foundation), which apparently funded the “study trip” (translation) that led to the description of this species (See ETYFish).
Eponymy: The John Simon Guggenheim Memorial Foundation funded the studies of the angelshark’s describer, Tomas Leandro Marini (1902 -1984). (Ref. 128868), visit book page.
环境：氛围 / 气候带 / 深度上下限 / 分布范围
生态学
海洋; 半咸淡水 居于水底的; 深度上下限 4 - 360 m (Ref. 57911), usually 4 - 266 m (Ref. 55667). 亞熱帶的; 20°S - 45°S, 68°W - 40°W (Ref. 57911)
Southwest Atlantic: southern Brazil and Argentina.
西南大西洋: 巴西南部與阿根廷.(參考文獻 26282)
首次成熟时的长度 / 大小 / 重量 / 年龄
成熟度: Lm 74.2 range ? - ? cm
Max length : 129 cm TL 雄鱼/尚未辨别雌雄; (Ref. 57911); 130.0 cm TL (female); common length : 89.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 55667)
简单描述
检索表 | 型态特徵 | 形态测量图
This species is distinguished by the following characters: with a single (or multiple in juveniles) row of enlarged, conical and morphologically distinct dermal denticles over dorsal longitudinal midline, from midlength of the pectoral fin base to origin of first dorsal fin (in some specimens, to origin of caudal fin); dorsal midline denticles are with enlarged and rounded basal plate, 3-4 times diameter of other dorsal denticles, crown with several median ridges (10-12), and crown apex acute and smooth, without ridges (vs. dorsal midline denticles on trunk morphologically similar to other trunk denticles and barely organized in a row in S. occulta and S. argentina); differs from S. occulta by having larger and fewer white blotches on dorsal surface, without surrounding blackish rings (i.e. absence of ocelli-like markings) and smaller in size at maturity, from 73.0-80.0 cm TL (vs. greater than 100.0 cm TL in S. occulta);
differs from S. argentina by its ligther background colour, light to dark brown (vs. dark brown to reddish brown), with larger and fewer white blotches over dorsal surface, with a pair of enlarged, conical and morphologically distinct dermal denticles between spiracles (vs. interspiracular surface covered by smaller dorsal denticles, no enlarged denticles), the lower number of tooth rows with 18-22 vertical rows in both upper and lower jaws, tooth formula 9-9 to 11-11/9-9 to 11-11 (vs. 12-12/12-12 in i>S. argentina), and with a straight external pectoral fin margin (vs. with convex anterior half of external margin). Colouration: dorsal color pattern of light to dark brown background, with several white, creamy-white or yellowish large and rounded blotches variable in size (between one-half to 1.5 times eye-length) on entire dorsal surface (Ref. 95520).
Cross section: angular.
Bony fishes were the main food followed by crustaceans and molluscs (Ref. 55667). Ovoviviparous (Ref. 50449). Adult males are characterized by the presence of a patch of small spines near the tip of the pectoral fins (Ref. 86510).
硬骨鱼类是跟随着甲壳动物与软件动物的主要的食物。 (参考文献 55667) 卵胎生的.(参考文献 50449)
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Ovoviviparous, embryos feed solely on yolk (Ref. 50449). Only the left ovary is functional (Ref. 57911).西南大西洋: 巴西南部與阿根廷.(參考文獻 26282)
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)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
濒危 (EN) (A2bd); Date assessed: 07 June 2018
人类利用
渔业: 商业性
工具
特别资料
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网络资源
基于模型的估算
首选温度 (参考文献
123201): 11.7 - 20.4, mean 15.8 °C (based on 228 cells).
系统发育多样性指数 (参考文献
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00661 (0.00287 - 0.01523), b=3.07 (2.88 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
营养阶层 (参考文献
69278): 4.4 ±0.80 se; based on food items.
回复力 (参考文献
120179): 非常低的, 最小族群倍增时间超过14 年 (Fec=4-10).
渔业脆弱性 (Ref.
59153): Very high vulnerability (78 of 100).
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营养素 (Ref.
124155): Calcium = 18.6 [3.4, 85.9] mg/100g; Iron = 0.762 [0.196, 2.146] mg/100g; Protein = 20.1 [18.0, 22.1] %; Omega3 = 0.441 [0.196, 0.945] g/100g; Selenium = 26.6 [7.5, 70.5] μg/100g; VitaminA = 11.3 [4.1, 33.1] μg/100g; Zinc = 0.478 [0.237, 0.881] mg/100g (wet weight);
