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Oryzias latipes, Japanese rice fish : fisheries, aquarium
分類 / 名稱 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). More on authors: Temminck & Schlegel.
Asia: Japan, Korea, China and Viet Nam. Reported from the middle Nam Theun, Mekong, Irrawaddy, Salween, Red River and Nanpangjiang in basins (Ref. 27732). 亞洲: 日本,韓國,中國與越南。 記錄來自南能河中游,湄公河,依洛瓦底江,薩爾溫江,紅河與南盤江流域了。 (參考文獻 27732)
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm Max length : 4.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 121523)
背的軟條 (總數) : 6 - 7; 臀鰭軟條: 15 - 21; 脊椎骨: 30 - 31. Meristic characters mainly from Nam Theun, Laos sample only (Ref. 27658). Scale count refers to the scales in longitudinal row (Ref. 41299). Body shape (shape guide): elongated. 體節形質特徵主要地從寮國的南能河只抽樣調查。 (參考文獻 27658) 鱗片計數在縱向的列中參考依據為鱗片。 (參考文獻 41299)
Adults occur in ponds, marshes, paddy fields and small flows of plains (Ref. 41299). They prefer slow-moving streams. Inhabit mainly waters of lowlands and brackish water, and also known to inhabit tide pools of coasts of certain regions in Japan and Korea. They can withstand a wide range of salinity (Ref. 58933). Omnivorous (Ref. 58933). For indoor culture, a diluted sea water is rather better than the freshwater , and the use of a balanced salt solution is recommended, if the tap water proves to be unsuitable (Ref. 58933). Used in experimental research (Ref. 4537). Non-annual breeders. Are easy to maintain in the aquarium (Ref. 27139). A fluorescent ornamental variety (genetically modified fish), a product of fluorescent protein extracted from jellyfish and attaching to DNA in embryonic fish of this is now being sold in the aquarium trade (Ref. 48573).
Carries eggs for some time before deposition (Ref. 7471). Oocytes mature at night followed by ovulation at dawn (Ref. 58942).亞洲: 日本,韓國,中國與越南。 記錄來自南能河中游,湄公河,依洛瓦底江,薩爾溫江,紅河與南盤江流域了。 (參考文獻 27732)
Roberts, T.R., 1998. Systematic observations on tropical Asian medakas or ricefishes of the genus Oryzias, with descriptions of four new species. Ichthyol. Res. 45(3):213-224. (Ref. 27658)
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].
Bayesian length-weight: a=0.00479 (0.00190 - 0.01207), 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): 3.4 ±0.45 se; based on food items.
Generation time: 0.3 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.