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Imparfinis parvus (Boulenger, 1898)

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drawing shows typical species in Heptapteridae.

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

Teleostei > Siluriformes (Catfishes) 鯰形目 (Catfishes) > Heptapteridae (Three-barbeled catfishes) 七鰭鯰科 (Three-barbeled catfishes)
Etymology: Imparfinis: Latin, impar = unequal + Greek, finis, pinna = wing, fin (Ref. 45335).
More on author: Boulenger.

Issue
This species is placed in the genus Rhamdia in Eschmeyer (CofF ver. Mar. 2011: Ref. 86697) following Burgess (1989: Ref. 6868). Treated incertae sedis in Heptapteridae by Bockmann & Guazzelli (2003: Ref. 36914) and Ferraris 2007 (Ref. 58032). Silfvergrip 1996 (Ref. 50029) placed this in Nannorhamdia, that would make it an Imparfinis, based on examination of the types.

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

; 淡水 底中水層性. 熱帶

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

South America: Marañon River basin, Ecuador.
南美洲: Maranon 河流域，厄瓜多。

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 8.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 36914)

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: Maranon 河流域，厄瓜多。

主要參考資料 Upload your references | 參考文獻 | 合作者 : Bockmann, Flavio | 合作者

Silfvergrip, A.M.C., 1996. A systematic revision of the Neotropical catfish genus Rhamdia (Teleostei, Pimelodidae). Stockholm University and Swedish Museum of Natural History. 156 pp. + 8 pls. (Ref. 50029)

IUCN 瀕危狀態 (Ref. 130435)

  未評估 

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的





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Trophic ecology
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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=0.01230 (0.00400 - 0.03785), b=2.99 (2.74 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
營養階層 (Ref. 69278):  3.1   ±0.5 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).