分類 / 名稱
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).
Eponymy: Heinrich Espe was a dealer in ornamental fish. [...] (Ref. 128868), visit book page.
Taxonomic Remarks
The most recent distributional records were published by Weitzman & Weitzman (1982: Fig. 229). Most recent systematic description by Weitzman (1966). Locality records including the locality of the original collections are discussed by Weitzman & Cobb (1975). Lectotype designated by Weitzman (1966). Occasionally exported as an aquarium fish, Weitzman et al. (2001) and Bork & Mayland (1998).
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
; 淡水 底中水層性; pH range: 5.5 - 7.0; dH range: 4 - 10. 熱帶; 22°C - 26°C (Ref. 1672)
South America: Mazaruni River system, Guyana.
南美洲: Mazaruni ,河流域,蓋亞那。
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm
Max length : 4.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 41850); common length : 2.8 cm SL 雄魚/尚未辨別雌雄; (Ref. 37401)
Feeds on worms, crustaceans and insects (Ref. 7020).
吃蠕蟲,甲殼動物與昆蟲。 (參考文獻 7020)
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
During courtship males swim above females, and nudge them on the head. Males attach 20-40 eggs to the underside of leaves, using their bag-like anal fin.南美洲: Mazaruni ,河流域,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 2025-2 (Global))
無危 (LC) ; Date assessed: 16 November 2020
人類使用
漁業: 沒有興趣; 水族館: 商業性
工具
特別的報告
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基於模型的估計
系統發育多樣性指數 (參考文獻 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00661 (0.00287 - 0.01523), b=3.13 (2.93 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
營養階層 (參考文獻 69278) |
3.3 ±0.40 se; based on food items. |
回復力 (參考文獻 120179) |
高度, 族群倍增時間少於 15個月 (tm=0.5-58, Fec=50-70). |
釣魚的脆弱性 (Ref. 59153) |
Low vulnerability (13 of 100). 🛈 |