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分類 / Names 俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei > Beloniformes (Needle fishes) 頜針魚目 (Needle fishes) > Adrianichthyidae (Ricefishes) 異鱂科 (Ricefishes) > Oryziinae
Etymology: Oryzias:Greek, oryza = rice; because of the habitat used by this fish (Ref. 45335).
Environment: milieu / climate zone / 深度上下限 / distribution range 生態學
Asia: Mekong, Irrawaddy, Salween, Red River and Nanpangjiang basins (Ref. 43281). Introduced in Kazakhstan where it is now abundant; established in lower Kuban drainage; spreading in Azov basin, discovered in River Obitochnaya, Ukraine in 2003 (Ref. 59043). 亞洲: 湄公河，依洛瓦底江，薩爾溫江，紅河與南盤江流域。
大小 / 重量 / 年齡
成熟度: Lm? range ? - ? cm Max length : 3.1 cm SL 雄魚/尚未辨別雌雄; (Ref. 43281); 最大年齡: 1.00 年 (Ref. 59043)
臀鰭軟條: 18 - 20. Body shape (shape guide): elongated.
Adults occur in swamps, marshes, rice fields, backwaters, stream stretches with stagnant water and dense vegetation (Ref. 59043). In Fuxian Lake, China, they are found in upper and middle layers of shallow coastal waters (Ref. 26717). Adults feed mainly on filamentous algae and zooplankton (Ref. 26717). They mature in 3 months time. Spawning occurs between April and September when temperature rises above 26°C. Can tolerate temperatures from 0 to 42°C, surviving winter under ice (Ref. 59043).
在中國撫仙湖出現於沿岸淺水區的上中層。 主要吃菌絲藻與浮游動物.(參考文獻 26717)
Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
A cluster of eggs, about 15-50, are spawned every few days in the morning and females carry them for a few hours, until the eggs are entangled into aquatic vegetation by the filaments which cover them. Eggs hatch in 10-12 days at 24°C (Ref. 59043).亞洲: 湄公河，依洛瓦底江，薩爾溫江，紅河與南盤江流域。
Yang, J.-X., 1991. The fishes of Fuxian Lake, Yunnan, China, with description of two new species. Ichthyol. Explor. Freshwat. 2(3):193-202. (Ref. 26717)
Phylogenetic diversity index (參考文獻 82804): PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00479 (0.00189 - 0.01213), b=3.13 (2.91 - 3.35), 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): 2.7 ±0.31 se; based on food items.
Generation time: 0.4 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
