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Potamotrygon falkneri Castex & Maciel, 1963

Largespot river stingray
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Image of Potamotrygon falkneri (Largespot river stingray)
Potamotrygon falkneri
Picture by Murch, A.

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).

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

; 淡水 底中水層性. 溫帶

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

South America: Paraná-Paraguay River basin, from Cuiabá and Piquiri rivers (among others) to the La Plata River.
南美洲: Parana-巴拉圭的河流域, 從 Cuiaba 與 Piquiri 河 (尤其是) 到 La Plata 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)

After a gestation period of about 20 weeks two pups were born in a public aquarium (Ref. 57489).

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

After a pregnancy of about 20 weeks two pups were born in the John-Shedd-Aquarium, New York.南美洲: Parana-巴拉圭的河流域, 從 Cuiaba 與 Piquiri 河 (尤其是) 到 La Plata 河。

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

Compagno, L.J.V., 1999. Checklist of living elasmobranchs. p. 471-498. In W.C. Hamlett (ed.) Sharks, skates, and rays: the biology of elasmobranch fishes. Johns Hopkins University Press, Maryland. (Ref. 35766)

IUCN 瀕危狀態 (Ref. 130435)

  資料不足 (DD) ; Date assessed: 09 September 2004

CITES

Appendix III: International trade cooperation

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的





人類使用

漁業: 沒有興趣; 水族館: 展示水族館
FAO - Publication: search | FishSource |

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網路資源

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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 (Fec=2).
Fishing Vulnerability (Ref. 59153):  High vulnerability (58 of 100).