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. 2015 Dec 10;5:18211. doi: 10.1038/srep18211

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(a) Typical habitat of A. digitifera colonies used in this study. Some colonies are exposed to air at low tide. Photo taken at Uehara, Iriomote Island. (b) Overview of Okinawa prefecture. Blue arrows indicate the Kuroshio Current in May 2014, based on the Japan Meteorological Agency website (http://www.jma.go.jp/jma/indexe.html). (c) Sampling sites at Okinawa Island, (d) the Kerama islands, (e) the Yaeyama islands (Ishigaki and Iriomote islands are identified). A shape file for Okinawa prefecture was downloaded from National Land Numerical Information, Japan (http://nlftp.mlit.go.jp/ksj/gmlold/index.html) and was visualized as maps using maptools in R (version 3.1.1)³¹. All maps are oriented with North at the top.