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) >
Characidae (Characins; tetras)
脂鯉科 (Characins; tetras) > Characinae
Etymology: Priocharax: Greek, prio = to saw + Greek, charax, -akos = a fish without identification (Ref. 45335); pygmaeus: Named for its tiny size.
More on authors: Weitzman & Vari.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性; 深度上下限 ? - 1 m (Ref. 28825). 熱帶; 25°C - ? (Ref. 28825)
South America: Upper Amazon River basin in Colombia (Ref. 28825). Recorded from the río Ucayali basin in Peru (Ref. 96862).
南美洲: Amazonas 河流域上游的支流。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 1.7 cm SL 雄魚/尚未辨別雌雄; (Ref. 96862)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 11; 臀鰭軟條: 24 - 27; 脊椎骨: 32 - 33.
Found in shaded or partially shaded rainforest stream. The bottom was clay with much leaf litter and without submerged plants.
發現於遮蔽或者部份地遮蔽了雨林水流。 底部是有很多的腐葉的泥土而且沒有水下的植物。
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: Amazonas 河流域上游的支流。
Weitzman, S.H. and R.P. Vari, 1987. Two new species and a new genus of miniature characid fishes (Teleostei: Characiformes) from northern South America. Proc. Biol. Soc. Wash. 100(3):640-652. (Ref. 28825)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
無危 (LC) ; Date assessed: 04 March 2021
人類使用
漁業: 沒有興趣
工具
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00661 (0.00301 - 0.01449), b=3.11 (2.93 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.0 ±0.5 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
