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''Acipenser oxyrinchus'' is a species of sturgeon. ==Information== Acipenser oxyrinchus is a species with two subspecies: * Atlantic sturgeon, ''Acipenser oxyrinchus oxyrinchus''. * Gulf sturgeon, ''Acipenser oxyrinchus desotoi''. Their main diet includes crustaceans, worms, and mollusks. This species is also known to migrate up the river when it is spawning.〔(【引用サイトリンク】url=http://www.nmfs.noaa.gov/pr/species/fish/atlanticsturgeon.htm )〕 This species is also recorded to be near threatened of becoming an endangered species due to dam construction, dredging, dredge spoil disposal, groundwater extraction, irrigation and other surface water withdrawals, and flow alterations. The Acipenser oxyrinchus is native to the countries of Canada and the United States.〔(【引用サイトリンク】url=http://www.iucnredlist.org/details/245/0 )〕 They can be found in sub-tropical climates and in a marine, freshwater environment.〔(【引用サイトリンク】url=http://fishbase.sinica.edu.tw/summary/speciessummary.php?id=2593 )〕 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「Acipenser oxyrinchus」の詳細全文を読む スポンサード リンク
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