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. 22.12 provides the correct distribution for Nannostomus eques, not Fig. 22.13. The most recent systematic description by Weitzman (1966). This species is commonly exported as an aquarium fish from Brazil, Peru and Guyana. Most recent systematic description is by Weitzman (1966). Commonly exported as an aquarium fish since 1910, Stansch (1914).
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性; pH range: 5.0 - 6.0; dH range: 5 - 12. 熱帶; 23°C - 28°C (Ref. 1672)
South America: central and upper Amazon.
南美洲: 中央的亞馬遜河; 也在祕魯的亞馬遜河。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 5.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 37104)
Feeds on worms, crustaceans and insects (Ref. 7020). Oviparous (Ref. 205). Aquarium keeping: in groups of 5 or more individuals; minimum aquarium size 60 cm (Ref. 51539).
吃蠕蟲，甲殼動物與昆蟲。 (參考文獻 7020) 卵生的.(參考文獻 205) 水族館保持: 形成 5個或更多個體的群體; 水族館最小體型 60 公分.(參考文獻 51539)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
南美洲: 中央的亞馬遜河; 也在祕魯的亞馬遜河。
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)
無危 (LC) ; Date assessed: 21 September 2020
人類使用
漁業: 商業性; 水族館: 商業性
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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=0.00741 (0.00372 - 0.01479), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
營養階層 (Ref.
69278): 3.3 ±0.40 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 (tm = 2).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
