[M-IS19] Ocean Plastics, an earth science perspective

Sun. May 22, 2022 9:00 AM - 10:30 AM 106 (International Conference Hall, Makuhari Messe)

convener:Atsuhiko Isobe(Kyushu University), convener:Kiichiro Kawamura(Yamaguchi University), Yusuke Okazaki(Department of Earth and Planetary Sciences, Graduate School of Science, Kyushu University), convener:Masashi Tsuchiya(Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology), Chairperson:Atsuhiko Isobe(Kyushu University), Kiichiro Kawamura(Yamaguchi University)

Mismanaged plastic wastes accounting for 70% of marine debris remain persistently in the marine environment, even if they are degraded and fragmentized to tiny microplastics. To date, it has been unknown how this anthropogenic, buoyant, and persistent matter which was first appeared in the earth history, contaminates (or is incorporated into) the earth system. The ocean plastic study requires the insight and methodology of a variety of earth sciences such as the oceanography, geology, and palaeontology. Studies on the plastic circulation loaded from the land/atmosphere to upper oceans and bottom sediments, studies on microplastics as a proxy of the 'Anthropocene', and studies to establish procedures in monitoring and analyzing macro/microplastics are welcomed.

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9:00 AM - 9:25 AM

[MIS19-01] A multilevel dataset of microplastic abundance in the world’s upper ocean

★Invited Papers

*Atsuhiko Isobe¹ (1.Kyushu University)

9:25 AM - 9:40 AM

[MIS19-02] Application of deep learning to the macro beach litter quantification

*Mitsuko Hidaka¹, Daisuke Sugiyama¹, Koshiro Murakami¹, Shin'ichiro Kako², Daisuke Matsuoka¹ (1.Japan Agency for Marine-Earth Science and Technology , 2.Kagoshima University)

9:40 AM - 9:55 AM

[MIS19-03] A Study of Vertical Convection Affecting the Accumulation of Marine Plastics at Sea

*Chiba Shuka^1,8, Yukihiro Takahashi^2,8, Nobuyasu Naruse^3,8, rimpei katada^4,8, Katsuhama Naoya^5,8, Ken Hirata^6,8, Fujita Shigeru^7,8 (1.Sapporo Nihon University High School, 2.Department of Cosmosciences, Graduate School of Science, Hokkaido University, 3.Faculty of Medicine, Shiga University of Medical Science, 4.School of Agriculture, Meiji University, 5.Graduate school of Agriculture, Forestry and Fisheries, Kagoshima University, 6.School of Science, Hokkaido University, 7.Department of Veterinary Medicine, College of Bioresource Sciences, Nihon University, 8.Super Scientist Program Plus)

9:55 AM - 10:10 AM

[MIS19-04] Modelling the fragmentation of marine plastics in response to fracture energy: A statistical mechanics approach

*Kunihiro Aoki¹, Ryo Furue¹, Ettore Barbieri¹ (1.Japan Agency for Marine Earth Science and Technology)

10:10 AM - 10:25 AM

[MIS19-05] TARA-JAMBIO Joint Microplastic Survey: Distribution, Flux and Plastisphere of Microplastics in Japanese Coastal Areas.

*Jonathan Josh Ramtahal^1,2, Kugako Sugimoto¹, Tara Jambio Consortium^4,3, Yumiko Patouillet⁴, Sylvain Agostini¹ (1.Shimoda Marine Research Center, University of Tsukuba, 2.Graduate School of Science and Technology, University of Tsukuba, 3.Japan Association of Marine Biology, 4.Tara Ocean Fondation, Japan)

Discussion (10:25 AM - 10:30 AM)

Session information