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Potamotrygon schuhmacheri Castex, 1964

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drawing shows typical species in Potamotrygonidae.

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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
Spelled Potamotrygon schuhmacheri in the title of the original descriprion, but Potamotrygon schühmacheri in the text, and wrongly emended by Taniuchi (1982) to Potamotrygon schuemacheri. Reproductive biology unknown. Additional reference: Compagno & Cook (1995). Possibly a junior synonym of P. histrix.

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

; 淡水 底中水層性. 溫帶

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South America: Paraná-Paraguay River basin.
南美洲: Parana-巴拉圭的河到阿根廷流域.(參考文獻 58839)

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 25.0 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: Parana-巴拉圭的河到阿根廷流域.(參考文獻 58839)

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

de Carvalho, M.R., N. Lovejoy and R.S. Rosa, 2003. Potamotrygonidae (River stingrays). p. 22-28. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 36687)

IUCN 瀕危狀態 (Ref. 130435)

  資料不足 (DD) ; Date assessed: 30 April 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).