Affiliation: | 1.Estuary Research Center, Shimane University, 1060 Nishikawatsu-cho, Matsue, Shimane, 690-8504, Japan ;2.Faculty of Education, Shimane University, 1060 Nishikawatsucho, Matsue, Shimane, 690-8504, Japan ;3.Fukui Prefectural Varve Museum, 122-12-1 Torihama, Wakasa-cho, Mikatakaminaka-gun, Fukui, 919-1331, Japan ;4.Faculty of Human Sciences, Waseda University, 2-579-15 Mikashima, Tokorozawa, Saitama, 359-1192, Japan ;5.National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki, 305-8560, Japan ; |