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Potamotrygon yepezi Castex & Castello, 1970

Maracaibo river stingray
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Image of Potamotrygon yepezi (Maracaibo river stingray)
Potamotrygon yepezi
Juvenile picture by Galvis, G./Mojica, J.I./Camargo, M.

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
Reproductive biology unknown. Additional references: Schultz (1949, as Potamotrygon magdalenae), Thorson et al. (1983a), Compagno & Cook (1995).

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

; 淡水 底中水層性. 熱帶

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South America: Rivers draining into Maracaibo Lake.
南美洲: 河進入 Maracaibo 湖之內注入。

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 40.0 cm WD 雄魚/尚未辨別雌雄; (Ref. 26543)

生物學特性     字彙 (例如 epibenthic)

Prefers shallow muddy bottoms with turbid waters (Ref. 26543). Feeds on insect larvae (Ref. 26543).

用混濁的水域偏愛泥濘的淺水底部。 (參考文獻 26543) 吃昆蟲幼生。 (參考文獻 26543)

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

南美洲: 河進入 Maracaibo 湖之內注入。

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: 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   ±0.40 se; based on food items.
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).