horneri. Then we examined lowest and highest sea surface water temperatures (SSTs) of S. horneri along the coasts consisting of east and west coast of Japan, and east coast of China in February and August 2000 using monthly mean SST of data provided by 12 models of A2 scenario ( Fig. 3 and Fig. 4). The lowest and highest water temperatures of east and west GDC-0449 price coasts of Japan, and east coast of China in the both months were 1.9–18.0 °C and 16.3–27.6 °C, 5.6–18.0 °C and 18.5–28.6 °C, and 2.0–17.4 °C and 21.6–29.8 °C, respectively. These water temperature ranges well

corresponded to those described by Umezaki (1984) indicating potential distribution of S. horneri along the coasts. We extracted the grids of its potential distribution marked in the both months. This overlying method gives possible distribution of S. horneri, by using the lowest and highest surface water temperatures of present S. horneri localities in February and in August. We estimated potential distribution of S. horneri ( Fig. 5) using these surface water ranges.

Fig. 5 suggests the possible distribution along the continental coast northeast of Korean Peninsula that has not been reported. We estimated possible geographical distribution of S. horneri as an intersection of sets by overlaying possible distribution of S. horneri in February and that Talazoparib in August 2050. Distribution of S. horneri disappeared from the coast of Kii Peninsula locating south central Honshu Island and from the west coast of Kyushu Island, where S. horneri was distributed in 2000, due to both water temperature rises in February and August 2050. Rise of water temperature in February extinguished geographical distribution from Hong Kong Idoxuridine to Fujian Province along the southeast coast of China. On the other hand, S. horneri extended its geographical distribution from Korean coast to Primorski coast in Russia through northeast coast of Korean Peninsula due to rise of water temperature

in winter. S. horneri appeared along the north end of Hokkaido Island, Soya Cape, and from Kunashiri to Etorofu Islands along the Kurile Islands. Rises of water temperatures in February and in August extinguished localities of S. horneri from the south coast of Honshu Island facing the Pacific Ocean. Rise of water temperature in August removed distribution of S. horneri along the Chinese coast, from the east and south coasts of Korean Peninsula, and from west to central Honshu Island facing the Sea of Japan. On the other hand, warmer temperature in winter in 2100 promoted S. horneri to extend localities from the north end in 2050 to the northeast coast of Hokkaido Island and move northwards along the Kurile Islands in 2100. S. tenuifolium is a tropical Sargassum species that is distributed from Ryukyu Archipelago to Kii Peninsula in Honshu Island facing the Pacific Ocean ( Umezaki, 1984).