February 2021   [Review]   Geochemical analysis of otoliths to study the migratory ecology of tunas Yosuke Amano, Kazuki Yokouchi, Toyoho Ishimura and Kotaro Shirai Bull. Jpn. Soc. Fish. Oceanogr. 85(1), Page 1-13, 2021   [Original papers]   Massive occurrences of Japanese littleneck clam (Ruditapes philippinarum) juveniles at the river mouth tidal flat in Mikawa Bay, Japan Kenji Nakamura and Teruaki Suzuki Bull. Jpn. Soc. Fish. Oceanogr. 85(1), Page 14-23, 2021   Causal factors of interannual decrease in stomach content index (SCI) of juvenile western sand lance Ammodytes japonicus in Harima-Nada, eastern Seto Inland Sea, Japan Seiho Hashiguchi, Tetsuya Nishikawa, Kaori Uozumi, Kazushi Furusawa, Atsushi Mori, Kazumasa Imao and Minoru Tanda Bull. Jpn. Soc. Fish. Oceanogr. 85(1), Page 24-32, 2021   [Information]   Abstracts of papers in Fisheries Oceanography, 29(6) Bull. Jpn. Soc. Fish. Oceanogr. 85(1), Page 33-36, 2021   Book Review Bull. Jpn. Soc. Fish. Oceanogr. 85(1), Page 37, 2021   Minutes of the Executive Committee Bull. Jpn. Soc. Fish. Oceanogr. 85(1), Page 38-43, 2021