44. Yusuke Suganuma, Takuya Itaki, Yuki Haneda, Kazuya Kusahara, Takashi Obase, Takeshige Ishiwa, Takayuki Omori, Minoru Ikehara, Robert McKay, Osamu Seki, Daisuke Hirano, Masakazu Fujii, Yuji Kato, Atsuko Amano, Yuki Tokuda, Hokuto Iwatani, Yoshiaki Suzuki, Motohiro Hirabayashi, Hiroyuki Matsuzaki, Takeyasu Yamagata, Masao Iwai, Kota Katsuki, Francisco J. Jimenez-Espejo, Hiroki Matsui, Koji Seike, Moto Kawamata, Naohisa Nishida, Masato Ito, Shin Sugiyama, Jun’ichi Okuno, Takanobu Sawagaki, Ayako Abe-Ouchi, Shigeru Aoki, Hideki Miura, 2025. Antarctic ice-shelf collapse in Holocene driven by meltwater release feedbacks, Nature Geoscience, doi.org/10.1038/s41561-025-01829-7.

43. 鈴木克明・板木拓也・片山　肇・兼子尚知・針金由美子・齋藤直輝・岩谷北斗・松井浩紀・石塚　治・山﨑　誠・有元　純・徳田悠希・千徳明日香・池内絵里・井口　亮・ 鈴木　淳・清家弘治, 2024. トカラ列島西方海域及び屋久島南方海域の底質分布とその制御要因, 地質調査研究報告, 75 (5-6), 223–248, doi.org/10.9795/bullgsj.75.5-6_223.

42. Moriaki Yasuhara, Huai-Hsuan May Huang, Raine Wing Ki Chong, Yuanyuan Hong, Hokuto Iwatani, Jingwen Zhang, Katsunori Kimoto, Minoru Ikehara, 2024. Climatic forcing of the Southern Ocean deep-sea ecosystem, Current Biology, 35 (2), 347–353, doi.org/10.1016/j.cub.2024.11.026.

41. Skye Yunshu Tian, Moriaki Yasuhara, Fabien L. Condamine, Huai-Hsuan M. Huang, Allan Gil S. Fernando, Yolanda M. Aguilar, Hita Pandita, Toshiaki Irizuki, Hokuto Iwatani, Caren P. Shin, Willem Renema, Tomoki Kase, 2024. Cenozoic history of the tropical marine biodiversity hotspot, Nature,  632, 343–349, doi:10.1038/s41586-024-07617-4.

40. 中野太賀・岩谷北斗・鈴木克明・板木拓也, 2023. トカラ列島周辺海域における現生貝形虫相の空間変化, 地質調査研究報告, 74 (5-6), 315–324, PDF.

39. 中野太賀・岩谷北斗・鈴木克明・板木拓也・久保　観・佐々木聡史, 2022. トカラギャップ周辺海域における現生貝形虫群集 (予報), 地質調査研究報告, 73 (5-6), 329–335, PDF.

38. Yuanyuan Hong, Moriaki Yasuhara, Hokuto Iwatani, Anne Chao, Paul G. Harnik, Chih-Lin Wei, 2022. Benthic ostracod diversity and biogeography in an urbanized seascape, Marine Micropaleontology, 174, 102067, doi:10.1016/j.marmicro.2021.102067.

37. Maximilian Hallenberger, Lars Reuning, Stefan Back, Stephen J. Gallagher, Hokuto Iwatani, Katja Lindhorst, 2022. Climate and sea‐level controlling internal architecture of a Quaternary carbonate ramp (Northwest Shelf of Australia), Sedimentology, 69, 1276–1300, doi:10.1111/sed.12948.

36. Yuanyuan Hong, Moriaki Yasuhara, Hokuto Iwatani, Anne Chao, Paul G. Harnik, Chih-Lin Wei, 2021. Ecosystem turnover in an urbanized subtropical seascape driven by climate and pollution, Anthropocene, 36, 100304, doi:10.1016/j.ancene.2021.100304.

35. Moriaki Yasuhara, Hisayo Okahashi, Huai-Hsuan May Huang, Yuanyuan Hong, Hokuto Iwatani, Rachel Wai Ching Chu, Gene Hunt, 2021. Quaternary equatorial Atlantic deep-sea ostracodes: evidence for a distinct tropical fauna in the deep sea,  Journal of Paleontology, doi:10.1017/jpa.2021.52.

34. Skye Yunshu Tian, Moriaki Yasuhara, Yuanyuan Hong, Huai-Hsuan M. Huang, Hokuto Iwatani, Wing-Tung Ruby Chiu, Briony Mamo, Hisayo Okahashi, Tine L. Rasmussen, 2020. Deglacial–Holocene Svalbard paleoceanography and evidence of meltwater pulse 1B,  Quaternary Science Reviews, 233, doi:10.1016/j.quascirev.2020.106237.

33. Richard Ching Wa Cheung, Moriaki Yasuhara, Hokuto Iwatani, Chih-Lin Wei, Yun-wei Dong, 2019. Benthic community history in the Changjiang (Yangtze River) mega-delta: Damming, urbanization, and environmental control,  Paleobiology, 45 (3), 469–483, doi:10.1017/pab.2019.21.

32. Caren P. Shin,  Moriaki Yasuhara,  Hokuto Iwatani,  Tomoki Kase,  Allan Gil S. Fernando, Hiroki Hayashi,  Yukito Kurihara,  Hita Pandita, 2019. Neogene marine ostracod diversity and faunal composition in Java, Indonesia: Indo-Australian Archipelago biodiversity hotspot and the Pliocene diversity jump, Journal of Crustacean Biology, 39 (3), 244–252, doi:10.1093/jcbiol/ruy110.

31. Huai-Hsuan M. Huang, Moriaki Yasuhara, Hokuto Iwatani, Tatsuhiko Yamaguchi, Katsura Yamada, Briony Mamo, 2019. Deep-sea ostracod faunal dynamics in a marginal sea: Biotic response to oxygen variability and Mid-Pleistocene global changes, Paleobiology, 45 (1), 85–97, doi:10.1017/pab.2018.37.

30. Yuanyuan Hong, Moriaki Yasuhara, Hokuto Iwatani, Briony Mamo, 2019. Baseline for ostracod-based northwestern Pacific and Indo-Pacific shallow-marine paleoenvironmental reconstructions: ecological modeling of species distributions, Biogeosciences, 16, 585–604, doi:10.5194/bg-16-585-2019.

29. Toshiaki Irizuki, Yuki Fujihara, Hokuto Iwatani, Shigenori Kawano, 2018. Recent ostracode assemblages from Shushi Bay, Tsushima Island, southwestern Japan and their ecological and zoogeographical characteristics, Laguna（汽水域研究）, 25, 39–54, ISSN:2185-2995. 

28. Stephen J. Gallagher, Lars Reuning, Tobias Himmler, Jorijntje Henderiks, David De Vleeschouwer, Jeroen Groeneveld, Ali Rastigar, Craig Fulthorpe, Kara Bogus, IODP 356 Scientists, 2018. The enigma of rare Quaternary oolites in the Indian and Pacific Oceans: a result of global oceanographic physicochemical conditions or a sampling bias?, Quaternary Science Reviews, 200, 114–122, doi:10.1016/j.quascirev.2018.09.028.

27. Richard C.W. Cheung, Moriaki Yasuhara, Briony L. Mamo, Kota Katsuki, Koji Seto, Hiroyuki Takata, Dong-Yoon Yang, Toshimichi Nakanishi, Katsura Yamada, Hokuto Iwatani, 2018. Decadal-centennial scale East Asian Summer Monsoon variability over the past millennium: an oceanic perspective, Geophysical Research Letter, 45 (15), 7711–7718, doi:10.1029/2018GL077978.

26. Huai-Hsuan M. Huang, Moriaki Yasuhara, Hokuto Iwatani, Carlos A. Zarikian, Maria-Angela Bassetti, Takuya Sagawa, 2018. Benthic biotic response to climate changes over the last 700,000 years in a deep marginal sea: impacts of deoxygenation and the Mid-Brunhes Event, Paleoceanography and Paleoclimatology, 33 (7), 766–777, doi:10.1029/2018PA003343.

24. Beth A. Christensen, Willem Renema, Jorijntje Henderiks, David De Vleeschouwer, Jeroen Groeneveld, Isla S. Castañeda, Lars Reuning, Kara Bogus, Gerald Auer, Takeshige Ishiwa, Cecilia M. McHugh, Stephen J. Gallagher, Craig S. Fulthorpe, IODP Expedition 356 Scientists, 2017. Indonesian Throughflow drove Australian climate from humid Pliocene to arid Pleistocene, Geophysical Research Letters, 44 (13), 6914–6925, doi:10.1002/2017GL072977.

22. Jeroen Groeneveld, Jorijntje Henderiks, Willem Renema, Cecilia M. McHugh, David De Vleeschouwer, Beth A. Christensen, Craig S. Fulthorpe, Lars Reuning, Stephen J. Gallagher, Kara Bogus, Gerald Auer, Takeshige Ishiwa, Expedition 356 Scientists, 2017. Australian shelf sediments reveal shifts in Miocene Southern Hemisphere Westerlies, Science Advances, 3 (5), e1602567, doi:10.1126/sciadv.1602567.

21. David De Vleeschouwer, Ann G. Dunlea, Gerald Auer, Chloe H. Anderson, Hans Brumsack, Aaron de Loach, Michael Gurnis, Youngsook Huh, Takeshige Ishiwa, Kwangchul Jang, Michelle A. Kominz, Christian März, Bernhard Schnetger, Richard W. Murray, Heiko Pälike, Expedition 356 Shipboard Scientists, 2017. Quantifying K, U and Th contents of marine sediments using shipboard natural gamma radiation spectra measured on DV JOIDES Resolution, Geochemistry, Geophysics, Geosystems, 18 (3), 1053–1064, doi:10.1002/2016GC006715.

20. Wing-tung Chiu, Moriaki Yasuhara, Hokuto Iwatani, Akihisa Kitamura, Kazuhiko Fujita, 2017. Response of subtropical submarine-cave ecosystem to Holocene cave development and Asian monsoon variability, Paleobiology, 43 (3), 425–434, doi:10.1017/pab.2016.53.

19. Moriaki Yasuhara, Hokuto Iwatani, Gene Hunt, Hisayo Okahashi, Tomoki Kase, Hiroki Hayashi, Toshiaki Irizuki, Yolanda M. Aguilar, Allan Gil S. Fernando, Willem Renema, 2016. Cenozoic dynamics of shallow-marine biodiversity in the Western Pacific, Journal of Biogeography, 44 (3), 567–578, doi:10.1111/jbi.12880.

18. Hokuto Iwatani, Yasuo Kondo, Toshiaki Irizuki, Masao Iwai, Minoru Ikehara, 2016. Orbital obliquity cycles recorded in the Kuroshio Current region, eastern Asia, around the Plio–Pleistocene boundary, Quaternary Science Reviews, 140, 67–74, doi:10.1016/j.quascirev.2016.03.025.

17. Wing-tung Chiu, Moriaki Yasuhara, Hokuto Iwatani, Akihisa Kitamura, Kazuhiko Fujita, 2015. An enigmatic Holocene podocopid ostracod from a submarine cave, Okinawa, Japan: ‘living fossil’ or adaptive morphotype? Journal of Systematic Palaeontology, 14 (8), 643–652, doi:10.1080/14772019.2015.1094754.

16. Aya Sakaguchi, Kazuya Tanaka, Hokuto Iwatani, Haruka Chiga, Qiaohui Fan, Yuichi Onda, Yoshio Takahashi, 2015. Size distribution studies on 137Cs in the Abukuma riverine system, following the Fukushima Daiichi Nuclear Power Plant accident, Journal of Environmental Radioactivity, 139, 379–389, doi:10.1016/j.jenvrad.2014.05.011.

15. Kazuya Tanaka, Hokuto Iwatani, Aya Sakaguchi, Yoshio Takahashi, Qiaohui Fan, Yuichi Onda, 2015. Size dependent distribution of radiocesium in river sediments and its relevance to the migration of radiocesium in river systems after the Fukushima Daiichi Nuclear Power Plant accident, Journal of Environmental Radioactivity, 139, 390–397, doi:10.1016/j.jenvrad.2014.05.002.

14. Hokuto Iwatani, Sansfica M. Young, Toshiaki Irizuki, Sampei Yoshikazu, Hiroaki Ishiga, 2014. Spatial variations of ostracode assemblages and bottom environments in Trincomalee Bay, northeast coast of Sri Lanka, Micropaleontology, 60 (6), 509–518, https://www.jstor.org/stable/24413721.

13. Kazuya Tanaka, Hokuto Iwatani, Aya Sakaguchi, Yoshio Takahashi, Yuichi Onda, 2014. Relationship between particle size and radiocesium in fluvial suspended sediment related to the Fukushima Daiichi Nuclear Power Plant accident, Journal of Radioanalytical and Nuclear Chemistry, 301 (2), 607–613, doi:10.1007/s10967-014-3159-1.

12. Moriaki Yasuhara, Maria Grimm, Simone N. Brandão, Anna Jöst, Hisayo Okahashi, Hokuto Iwatani, Alexandra Ostmann, Pedro Martínez Arbizu, 2014. Deep-sea benthic ostracodes from multiple core and epibenthic sledge samples in Icelandic waters, Polish Polar Research, 35 (2), 341–360, doi:10.2478/popore-2014-0001.

11. Hokuto Iwatani, Toshiaki Irizuki, Moriaki Yasuhara, 2014. A paleobathymetric transition during the mid-Pliocene warm period: Ostracode evidence from Japan, Palaeogeography, Palaeoclimatology, Palaeoecology, 399, 173–186, doi:10.1016/j.palaeo.2013.12.034.

10. 田中万也, 坂口 綾, 岩谷北斗, 高橋嘉夫, 2013. 福島第一原子力発電所事故由来の放射性セシウムの環境中での移行挙動とミクロスケールでの不均質性, 放射化学, (27), 12–19, PDF.

9. Kazuya Tanaka, Hokuto Iwatani, Yoshio Takahashi, Aya Sakaguchi, Yuichi Onda, 2013. Investigation of Spatial Distribution of Radiocesium in a Paddy Field as a Potential Sink, PLoS ONE, 8 (11), e80794, doi:10.1371/journal.pone.0080794.

8. Hokuto Iwatani, Toshiaki Irizuki, Moriaki Yasuhara, 2013. Occurrence of a rare puncioid ostracod, Promanawa konishii (Nohara, 1976), in Recent sediments of the East China Sea, Journal of Micropaleontology, 32 (2), 221–223, doi:10.1144/jmpaleo2013-008.

7. 後藤隆嗣, 入月俊明, 林 広樹, 田中裕一郎, 松山和馬, 岩谷北斗, 2013. 岡山県新見市田治部地域に分布する中新統の層序と対比, 地質学雑誌, 119 (4), 321–333, doi:10.5575/geosoc.2013.0002.

6. Kazuya Tanaka, Hokuto Iwatani, Aya Sakaguchi, Yoshio Takahashi, Yuichi Onda, 2012. Local distribution of radioactivity in tree leaves contaminated by fallout of the radionuclides emitted from the Fukushima Daiichi Nuclear Power Plant, Journal of Radioanalytical and Nuclear Chemistry, 295 (3), 2007–2014, doi:10.1007/s10967-012-2192-1.

5. Haibo Qin, Yuka Yokoyama, Qiaohui Fan, Hokuto Iwatani, Kazuya Tanaka, Aya Sakaguchi, Yutaka Kanai, Jianming Zhu, Yoshio Takahashi, 2012. Investigation of cesium adsorption on soil and sediment samples from Fukushima Prefecture by sequential extraction and EXAFS technique, Geochemical Journal, 46 (4), 297–302, doi:10.2343/geochemj.2.0214.

4. Hokuto Iwatani, Toshiaki Irizuki, Hiroki Hayashi, 2012. Global cooling in marine climates and local tectonic events in Southwest Japan at the Plio–Pleistocene boundary, Palaeogeography, Palaeoclimatology, Palaeoecology, 350–352, 1–18, doi:10.1016/j.palaeo.2012.05.025.

2. 岩谷北斗, 村井絢有, 入月俊明, 林 広樹, 田中裕一郎, 2009. 宮崎県鮮新統中部佐土原層から発見された国内最古の現生種タコブネ化石とその堆積年代, 地質学雑誌, 115 (10), 548–551, doi:10.5575/geosoc.115.548.

1. 岩谷北斗, 入月俊明, 2008. 宮崎平野北部の鮮新統宮崎層群の地質と貝形虫化石群集, 化石, (84), 61–73, doi:10.14825/kaseki.84.0_61. 

2. 岩谷北斗, 入月俊明, 2010. 沖縄本島西部沖東シナ海における表層堆積物中の現生貝形虫群集（予報）, 地質調査総合センター速報, (51), 143–147.

1. 岩谷北斗, 入月俊明, 2009. GH08航海により沖縄島東部沖太平洋にて採取された表層堆積物中の現生貝形虫群集（予報）, 地質調査総合センター速報, (46), 148–152.

2. Stephen J. Gallagher, Craig S. Fulthorpe, Kara Bogus, Expedition 356 Scientists, February 26, 2017. Indonesian Throughflow. Proceedings of the International Ocean Discovery Program Volume 356, College Station, TX (International Ocean Discovery Program). ISSN:2377-3189.

1. 入月俊明, 岩谷北斗, 河野重範, 北沢公太, 国松 豊, 沢田順弘, 須山裕美, 辻野泰之, 富田武照, 中務真人, 平田正礼, 広瀬浩司, 福岡 孝, 矢田猛士, （分担執筆: 河野重範, 矢田猛士編）, 2008. 化石でたどる生命の歴史（島根県立三瓶自然館企画展示解説書）, 島根県立三瓶自然館, 64 pp. ISSN:1883-1222.

Please also refer to  ResearchGate and Google Scholar.

Soft copy is available. Please feel free to contact me at hokuto.iwatani(at)gmail.com, if you have interest in our publications.