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Potamotrygon henlei (Castelnau, 1855)

Bigtooth river stingray
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Potamotrygon henlei
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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).
More on author: Castelnau.

Issue
Reproductive biology unknown. A large female weighing some 15 kg gave birth to one pup of 12.5 cm DW, according to Rosa (1985a). Rare in scientific collections, but frequently commercialized by aquarium industry. Highly endemic distribution may render this species as being endangered. Additional references: Bertin (1939), Sérét & McEachran (1986), Compagno & Cook (1995), Rosa & Menezes (1996).

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

; 淡水 底中水層性; pH range: 5.8 - 7.2; dH range: 4 - 15. 熱帶; 23°C - 28°C (Ref. 12468)

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

South America: Tocantins River basin (Tocantins and Araguaia rivers).
南美洲: Tocantins 河流域 (Tocantins 與 Araguaia 河).

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 45.0 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

Two to three live offsping are produced.南美洲: Tocantins 河流域 (Tocantins 與 Araguaia 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)

  無危 (LC) ; 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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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 =2-3).
Fishing Vulnerability (Ref. 59153):  High vulnerability (58 of 100).