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) >
Myliobatiformes (Stingrays) >
Potamotrygonidae (River stingrays) > Potamotrygoninae
Etymology: Potamotrygon: Greek, potamos = river + Greek, trygon = a sting ray (Ref. 45335).
Eponymy: William Charles Schroeder (1894–1977) was an American oceanographer and ichthyologist. [...] (Ref. 128868), visit book page.
Taxonomic Remarks
Holotype was originally in the private collection of A. Fernandez-Yepez (AFY 51289). Distribution of this species was expanded by Castex & Yagolkowski (1970) to include the Negro river of the Amazonas basin. Note that the species we recognize as Potamotrygon schroederi does not correspond to this species in Rosa (1985a) – his “P. schroederi” actually represents a new species. Reproductive biology unknown. Additional references: Mago-Leccia (1970), Compagno & Cook (1995).
环境:氛围 / 气候带 / 深度上下限 / 分布范围
生态学
; 淡水 底中水层性. 熱帶; 18°C - 25°C (Ref. 13614)
分布
领土 | FAO区域 | 生态系 | 标本纪录 | 分布图 | 简介 | Faunafri
South America: Apure (Orinoco basin) and Negro (Amazon basin) rivers.
南美洲: Apure(奧里諾科河流域) 與尼格羅河 (亞馬遜河流域) 河。
大小 / 重量 / 年龄
成熟度: Lm ?  range ? - ? cm
Max length : 60.0 cm WD 雄鱼/尚未辨别雌雄; (Ref. 36687)
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: Apure(奧里諾科河流域) 與尼格羅河 (亞馬遜河流域) 河。
Taphorn, D., R. Royero, A. Machado-Allison and F. Mago Leccia, 1997. Lista actualizada de los peces de agua dulce de Venezuela. p.55-100. In E. La Marca (ed.) Catálogo zoológico de Venezuela. vol. 1. Vertebrados actuales y fosiles de Venezuela. Museo de Ciencia y Tecnologia de Mérida, Venezuela. (Ref. 28768)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
易受伤害 (VU) (A2cde); Date assessed: 07 August 2024
人类利用
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特别资料
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网络资源
基于模型的估算
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=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
营养阶层 (参考文献
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
回复力 (参考文献
120179): 非常低的, 最小族群倍增时间超过14 年 (Assuming Fec<10).
渔业脆弱性 (Ref.
59153): High vulnerability (58 of 100).
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