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The wakasagi, ''Hypomesus nipponensis'', is an important food fish native to the lakes and estuaries of Hokkaido, Japan. It has been introduced in other locations, including the San Francisco Delta of the United States. It is raised in fisheries, and is very similar in appearance to the delta smelt (''H. transpacificus''). ==Synonyms== |1= }} }} }} ''Hypomesus chishimaensis'' was described as being a new species in the lakes of Kunashir and Iturup in 1997 based on claimed morphological differences. After later studies failed to find these morphological differences, it regarded as an ecotype of ''H. nipponensis''. A 2007 genetic analysis supported this classification, and recommended that ''H. chishimaensis'' not be given its own binomial designation.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Hypomesus nipponensis」の詳細全文を読む スポンサード リンク
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