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Potamotrygon schroederi Fernández-Yépez, 1958

Rosette river stingray
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Image of Potamotrygon schroederi (Rosette river stingray)
Potamotrygon schroederi
Picture by Jean-Francois Helias / Fishing Adventures Thailand

分類 / Names 俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii 板鰓亞綱 (鯊魚與魟魚) (sharks and rays) > Myliobatiformes (Stingrays) 鰩目 (Stingrays) > Potamotrygonidae (River stingrays) 河魟科 (River stingrays) > Potamotrygoninae
Etymology: Potamotrygon: Greek, potamos = river + Greek, trygon = a sting ray (Ref. 45335).

Issue
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).

Environment: milieu / climate zone / depth range / distribution range 生態學

; 淡水 底中水層性. 熱帶; 18°C - 25°C (Ref. 13614)

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | 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 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 60.0 cm WD 雄魚/尚未辨別雌雄; (Ref. 36687)

生物學特性     字彙 (例如 epibenthic)


Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚

南美洲: Apure(奧里諾科河流域) 與尼格羅河 (亞馬遜河流域) 河。

主要參考資料 Upload your references | 參考文獻 | 合作者 : Carvalho, Marcelo | 合作者

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)

IUCN 瀕危狀態 (Ref. 130435)

  資料不足 (DD) ; Date assessed: 05 May 2004

CITES

Appendix III: International trade cooperation

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的





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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 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).
營養階層 (Ref. 69278):  3.2   ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  非常低的, 最小族群倍增時間超過14 年 (Assuming Fec<10).
Fishing Vulnerability (Ref. 59153):  High vulnerability (58 of 100).