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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Mexican golden trout ： ウィキペディア英語版 Mexican golden trout The Mexican golden trout (''Oncorhynchus chrysogaster'') is a species of fish in the Salmonidae family. The species is endemic to high-elevation headwaters of the Fuerte River, Sinaloa River, and Culiacán River drainages in the Sierra Madre Occidental in Mexico. ==Taxonomy== In 1936, Paul Needham, a fisheries biologist with the U.S. Bureau of Fisheries began a series of explorations (1936, 1937 and 1938) into the Rio Santo Domingo drainage in Baja California seeking to bring back live specimens of the Baja rainbow trout as hatchery stock and further study. Although live specimens reached U.S. hatcheries, none ever survived to spawn. In 1952, 1955 and 1956 Needham again explored the Sierra Madre Occidental tributaries of the Gulf of California. Needham's explorations led to the publication of ''Rainbow Trout of Mexico and California'' (1959) with coauthor Richard Gard. It contains the first full color drawing of the Mexican golden trout. In 1964, Needham and Gard's proposed binomial name ''Salmo chrysogaster'' was accepted as the scientific name for a new species of trout, the Mexican golden trout. The specific name ''chrysogaster'' is derived from the Greek for "golden belly". In 1989, morphological and genetic studies indicated trout of the Pacific basin were genetically closer to Pacific salmon (''Oncorhynchus'' species) than to the ''Salmos''–brown trout (''S. trutta'') or Atlantic salmon (''S. salar'') of the Atlantic basin. Thus, in 1989, taxonomic authorities moved the rainbow, cutthroat and other Pacific basin trout, including the Mexican golden trout into the genus ''Oncorhynchus''. 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「Mexican golden trout」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.