翻訳と辞書 |
Percina shumardi : ウィキペディア英語版 | Percina shumardi
The river darter (''Percina shumardi'') is a benthic species of freshwater fish in the Percidae family (Perches and Darters) of order Perciformes. It is native to North America. It is an inhabitant of small and medium rivers where it occurs in rocky riffles with clear, fast-flowing water. The river darter can reach up to 7.3 cm in length and has an average lifespan of three years. It can be distinguished from other darters by its unique front and rear spots on the dorsal fin. ==Geographic Distribution== The river darter is a species native only to the United States and Canada. Within Canada, the river darter is native to southern regions including the Hudson Bay basin, Ontario, and Manitoba. Within the United States, the river darter is native to a band that starts northward in Canada and extends into Minnesota and North Dakota and continues to the Gulf drainages in Alabama and Texas. The river darter is the most common species of darter in the Mississippi River Channel.〔http://nas.er.usgs.gov/queries/factsheet.aspx?SpeciesID=826〕
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「Percina shumardi」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.
|
|