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: Lütken.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的; pH range: 6.0 - 7.0; dH range: 15 - ?. 熱帶; 24°C - 28°C (Ref. 2059)
South America: Upper São Francisco River basin, Brazil.
南美洲: Sao 弗朗西斯科河流域上游。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 12.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 27188)
Frequently occur in large rivers with strong currents, in association with Heptapterus longior (Ref. 27188), Pimelodella, Hemiancistrus, Lasiancistrus, Lithoxus, Characidium and Leporinus granti. Are more or less cave-dwellers, their reproduction is seasonal and sex determination type ZZ/ZW (heterogametic female) (Ref. 35381)
時常出現在大河有強的水流, 伴隨著 Heptapterus longior(參考文獻 27188) ， Pimelodella ， Hemiancistrus ， Lasiancistrus, Lithoxus,Characidium 與 格氏兔脂鯉〔Leporinus granti〕 . 穴居者約略是, 他們的繁殖季節性的與性別決心類型 ZZ/ZW(heterogametic 母魚)(參考文獻 35381)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: Sao 弗朗西斯科河流域上游。
Bockmann, F.A. and G.M. Guazzelli, 2003. Heptapteridae (Heptapterids). p. 406-431. 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. 36914)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)
無危 (LC) ; Date assessed: 07 November 2018
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00692 (0.00380 - 0.01261), b=2.91 (2.76 - 3.06), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
營養階層 (Ref.
69278): 3.0 ±0.42 se; based on food items.
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).
