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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 Orangefin darter ： ウィキペディア英語版 Orangefin darter The orangefin darter (''Etheostoma bellum'') is found in Barren River and Green River systems in Tennessee and Kentucky.〔http://www.fishbase.org/summary/Etheostoma-barrenense.html〕〔Zorach, T. (1968). Etheostoma bellum, a new darter of the subgenus ''Nothonotus'' from the Green River system Kentucky and Tennessee. Copeia. 1968(3). 474-482. www.jstor.org/stable/1442015〕 The orangefin darter is in the Percidae family. This moderate-sized fish usually matures between one and two years of age. The territorial males spawn over the top of buried females in the gravels of fast-flowing riffle areas. This usually occurs from late April to late June. Both the juveniles and adults are vicious predators, and mainly like to feed on dipteran larvae. ==Distribution== These darters are known only from the Green and Barren River watersheds. The Green River is the largest river of the two, and the Barren River is a tributary to the Green River, which is known for a "biodiversity hotspot."〔 This river’s hotspot is considered to be between the 100-mile stretch from Green River reservoir dam and Mammoth Cave National Park. More than 150 fish species and 70 mussels have been found in this system, and many other aquatic species. This river drains to the Mississippi, but the orangefin darters do not go that far down the system. Green River is a flowing system with many waterfalls, and mountain springs flowing into it to give a clean green look because of the depth. The Barren River headwaters are more in Tennessee, but flows in Kentucky, also. The Barren River is north of the Nashville Basin, in Clay, Macon, and Sumner Counties, draining the northward-sloping portion of the Highland Rim. It meets the Green River around Warren County, Kentucky. "A typical Highland Rim stream is cool, clear water, gravel substrates, and riffle pool habitats."〔〔Etnier, D., Starnes, W. (1991). The Fishes of Tennessee: Waters and geology of tennessee. (3-17). University of Tennessee:Newsfound Press.〕 〔The Nature Conservancy. (2013). Kentucky. The Green river. http://www.nature.org/ourinitiatives/regions/northamerica/unitedstates/kentucky/placesweprotect/green-river.xml.〕 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「Orangefin darter」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.