| 单词 | japanese medaka | 
| 释义 | > as lemmasJapanese medaka   Any of several small Asian freshwater fishes of the genus  Oryzias (family  Oryziatidae), commonly found in paddy fields and popular in aquaria; esp. (more fully  Japanese medaka)  O. latipes of Japan. Also called killifish, ricefish.Medakas were formerly placed in the family  Cyprinodontidae. ΚΠ 1906    D. S. Jordan  & J. O. Snyder in  Proc. U.S. National Mus. 31 		(1907)	 288  				The species are known in Japan as Medaka. 1952    G. F. Hervey  & J. Hems Freshwater Trop. Aquarium Fishes 260  				Oryzias latipes... The Medaka. The (Japanese) Rice Fish. The Coldwater Haplochilus (in America). 1977    Sci. Amer. Nov. 133/3  				When Ridgway and his collaborators injected aequorin into the large unfertilized eggs of a fish, the Japanese medaka (Oryzias latipes), they observed a low level of luminescence. 1994    New Scientist 16 July 6/1  				Astronauts aboard the space shuttle Columbia video the mating behaviour of two pairs of Japanese medaka fish. 2004    Daily Yomiuri 19 Mar. 3/3  				The Agriculture, Forestry and Fisheries Ministry will launch a project..to help revive the natural habitat and spawning areas of medaka, or killifish. < as lemmas | 
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