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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 Gray's Reef National Marine Sanctuary ： ウィキペディア英語版 Gray's Reef National Marine Sanctuary Gray's Reef National Marine Sanctuary is one of the largest near shore live-bottom reefs in the southeastern United States. The sanctuary, designated in January 1981, is located off Sapelo Island, Georgia, and is one of 13 marine sanctuaries that make up the U.S. National Marine Sanctuary System. Within the 17-square-nautical-mile (58 km2) sanctuary, there are both rocky ledges and sandy flat places. The reef's dolomitic sandstone outcrops, submerged beneath 60 to 70 feet (18 to 21 m) of water, can be as tall as 2 to 3 m and are highly complex. These nooks and crannies provide plenty of places for invertebrates to latch on to and for fish to hide in. Together these animals form a dense carpet of living creatures that in places completely hides the rock. That gives the habitat of Gray's Reef its common name — a "live bottom". Researchers from NOAA and the University of Georgia have used the site to study invertebrate and vertebrate paleontology as well as the effects of erosion.〔 ==References== 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「Gray's Reef National Marine Sanctuary」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.