分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins)
脂鯉目 (Characins) >
Lebiasinidae (Pencilfishes)
鮰脂鯉科 (Pencilfishes) > Pyrrhulininae
Etymology: Nannostomus: Latin, nannus = small + Greek, stoma = mouth (Ref. 45335).
More on author: Steindachner.
Issue
The most recent reference to distribution is by Weitzman & Weitzman (1982), but due to a printer’s error Fig. 22.13 provides the correct distribution for Nannostomus trifasciatus, not Fig. 22.10. The most recent systematic description by Weitzman (1966). This species is commonly exported as an aquarium fish from Peru and Guyana.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性; pH range: 5.5 - 7.0; dH range: ? - 4. 熱帶; 24°C - 28°C (Ref. 1672)
South America: Peruvian, Bolivian, and Brazilian Amazon River basin, Negro River basin, and Guyana.
南美洲: 祕魯人， Bolivian 與巴西的亞馬遜河流域，尼格羅河流域與蓋亞那。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 3.6 cm SL 雄魚/尚未辨別雌雄; (Ref. 94659); 最大體重: 0.41 g (Ref. 125972)
Feeds on worms, crustaceans and insects (Ref. 7020).
吃蠕蟲，甲殼動物與昆蟲。 (參考文獻 7020)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: 祕魯人， Bolivian 與巴西的亞馬遜河流域，尼格羅河流域與蓋亞那。
Weitzman, M. and S.H. Weitzman, 2003. Lebiasinidae (Pencil fishes). p. 241-251. 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. 37104)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
無危 (LC) ; Date assessed: 22 September 2020
人類使用
漁業: 商業性; 水族館: 商業性
工具
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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=0.00912 (0.00476 - 0.01747), b=3.29 (3.12 - 3.46), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
營養階層 (Ref.
69278): 3.3 ±0.39 se; based on food items.
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
