JpGU-AGU Joint Meeting 2026

Presentation information

[E] Oral

H (Human Geosciences ) » H-TT Technology & Techniques

[H-TT16] Development and application of environmental traceability methods

Tue. May 26, 2026 1:45 PM - 3:15 PM Exhibition Hall Special Setting (2) (Exhibition Hall 7&8, Makuhari Messe)

Chairperson:Tayasu Ichiro(Research Institute for Humanity and Nature)

1:45 PM - 2:00 PM

[HTT16-06] Reconstructing Migration Routes Using a Multi-Isotope Data-Assimilation State-Space Model Based on Chub Mackerel Eye Lens δ15N and Δ14C and Isoscapes

*Kohei Sakamoto1,2, Chisato Yoshikawa2, Nanako O. Ogawa2, Yutaka Osada3, Yusuke Yokoyama1, Naoto F. Ishikawa2, Shin-ichi Ito2, Yosuke Miyairi1, Takahiro AZE1, Naohiko Ohkouchi2 (1. Atmosphere and Ocean Research Institute, The University of Tokyo, 2. JAMSTEC, Biogeochemistry Research Center, 3. TOHOKU University)

Keywords:Isologging, Radiocarbon, Nitrogen stable isotope, State-Space model, Kuroshio Current, Fish Migration