Radiocarbon as an indicator of animal migration in the ocean: An application to the breeding ecology of Japanese chum salmon

Yasuhiko T Yamaguchi1,2, Shigenori Nobata1, Tatsuya Kawakami1, Kotaro Shirai1, Kentaro Honda3, Yosuke Miyairi1, Yusuke Yokoyama1 and Toshi Nagata1, (1)The University of Tokyo, Atmosphere and Ocean Research Institute, Kashiwa, Chiba, Japan, (2)Lake Biwa Environmental Research Institute, Otsu, Shiga, Japan, (3)Japan Fisheries Research and Education Agency, Hokkaido National Fisheries Research Institute, Sapporo, Hokkaido, Japan