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Oryzias latipes  (Temminck & Schlegel, 1846)

Japanese rice fish
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Oryzias latipes
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Actinopterygii 輻鰭魚綱 (條鰭魚) > Beloniformes (Needle fishes) > Adrianichthyidae (Ricefishes) > Oryziinae
Etymology: Oryzias: Greek, oryza = rice; because of the habitat used by this fish (Ref. 45335).

環境 / 氣候 / 範圍 生態學

; 淡水; 半鹹淡水 底中水層性; pH range: 7.0 - 8.0; dH range: 9 - 19; 非產卵性溯降河的 (Ref. 51243).    18°C - 24°C (Ref. 2060), preferred ?; 55°N - 10°N, 85°E - 105°E

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Asia: Japan, Korea, China and Viet Nam. Reported from the middle Nam Theun, Mekong, Irrawaddy, Salween, Red River and Nanpangjiang in basins (Ref. 27732).

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 3.2 cm SL 雄魚/尚未辨別雌雄; (Ref. 41299)

簡短描述 型態特徵 | 形態測量圖

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).

生物學特性     字彙 (例如 epibenthic)

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).

Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | | 孕卵數 | 仔魚

Carries eggs for some time before deposition (Ref. 7471). Oocytes mature at night followed by ovulation at dawn (Ref. 58942).

主要參考資料 Upload your references | 參考文獻 | 合作者 : Seegers, Lothar | 合作者

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)

IUCN 瀕危狀態 (Ref. 115185)

  未評估 

CITES (Ref. 94142)

Not Evaluated

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