Japan Geoscience Union Meeting 2024

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[J] Oral

M (Multidisciplinary and Interdisciplinary) » M-ZZ Others

[M-ZZ42] Process, Environment, and Exploration of Marine Manganese Deposits

Tue. May 28, 2024 3:30 PM - 4:45 PM 302 (International Conference Hall, Makuhari Messe)

convener:Akira Usui(Marine Core Research Center, Kochi University), Katsuhiko Suzuki(Submarine Resources Research Center, Japan Agency for Marine-Earth Science and Technology), Takashi Ito(Faculty of Education, Ibaraki University), Yoshio Takahashi(Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo), Chairperson:Akira Usui(Marine Core Research Center, Kochi University), Katsuhiko Suzuki(Submarine Resources Research Center, Japan Agency for Marine-Earth Science and Technology), Takashi Ito(Faculty of Education, Ibaraki University), Yoshio Takahashi(Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo)

4:15 PM - 4:30 PM

[MZZ42-04] Genetic population structure of a deep-sea amphipod species in the abyssal Clarion-Clipperton Zone (CCZ) in the Pacific

*Akira Iguchi1, Eri Ikeuchi1, Hiroki Kise1, Kyoko Yamaoka1, Atsushi Suzuki1, Chisato Murakami2 (1.National Institute of Advanced Industrial Science and Technology, 2.Deep Ocean Resources Development CO., LTD.)

Keywords:Deep-sea, Amphipod, Genetic connectivity

In recent years, there has been an international debate on the development of marine mineral resources with regard to their impact on the deep-sea environment and ecosystems and their conservation. Environmental guidelines by the International Seabed Authority recommend a survey to understand the genetic connectivity of representative species as one of the environmental baseline surveys. As the predominant deep-sea amphipods are easy to recruit from a relatively large number of sites, they have attracted attention as a target for genetic connectivity analysis. In this study, genetic analyses were conducted to understand the genetic connectivity of one of the deep-sea amphipod species, Paralicella tenuipes, collected around the Clarion-Clipperton Fissure Zone off south-east Hawaii. In this presentation, we report on the mitochondrial cytochrome c oxidase subunit I gene sequence, mitochondrial genome sequence and the results of the analysis using single nucleotide polymorphism data from MIG-seq in the P. tenuipes.