[B-PT04] Biomineralization and the Geochemistry of Proxies

Sun. May 26, 2019 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

convener:Takashi Toyofuku(Japan Agency for Marine-Earth Science and Technology (JAMSTEC)), Hiroshi Kitazato(Tokyo University of Marine Science and Technology (TUMSAT)), Jelle Bijma(Alfred-Wegener-Institut Helmholtz-Zentrum f?r Polar- und Meeresforschung), Kotaro Hirose(Faculty of Science & Engineering, Waseda University)

Biomineralization and the Geochemistry of Proxies - Biology, laboratory culture-experiments and their applications to the paleo-research -
In order to reconstruct the Earth climate system, marine paleoclimatologists resort to transfer functions or geochemical proxies, which are produced or affected by organisms. The relationships used for reconstructions are generally based on field calibrations or derived from laboratory experiments. The danger of these so-called empirical relationships is that they may be valid only within the restricted parameter space of their calibration. Application of proxy relationships to very different environmental settings (e.g. high vs. low latitude or glacial vs. interglacial) requires a mechanistic understanding of these relationships. Much progress can be expected by a better understanding of the biomineralization mechanisms and the incorporation of proxy signals.
In this session we facilitate contributions related to the biomineralization, calibration and validation of marine proxies from field study, laboratory culture experiment and paleo-environmental reconstruction.

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[BPT04-P01] Living (stained) benthic foraminifera in the West-Gironde mud patch (Bay of Biscay, France): An ongoing survey for the European Community.

*Christophe Fontanier^1,2, Bruno Deflandre¹, Sylvain Rigaud³, Sabine Schmidt¹, Bastien Lamarque¹, Pascal Lebleu¹, Dominique Poirier¹, Antoine Grémare¹ (1. Bordeaux University, EPOC Laboratory, UMR CNRS 5805 OASU, F-33615 Pessac, FRANCE, 2.FORAM Research Group, F-49140 Villevêque, FRANCE, 3.Nîmes University, GIS Laboratory, EA 7352 CHROME, F-30035 Nïmes, FRANCE)

[BPT04-P02] Biomonitoring in the Cassidaigne Canyon (NW Mediterranean): the resilience and recovery of deep-sea benthic foraminifera at a bauxite industrial waste site

*Pauline Duros¹, Christophe Fontanier^1,2,3, Briony Mamo^4,5, Deborah Mille⁶, Olivier Herlory⁶ (1.FORAM Research Group, F-49140 Villevêque, FRANCE, 2.Bordeaux University, EPOC Laboratory, UMR CNRS 5805 OASU, F-33615 Pessac, FRANCE, 3.Angers University, 4 boulevard Lavoisier, F-49000 Angers, FRANCE., 4.School of Biological Sciences, University of Hong Kong, Pokfulam Road Sai Wan, Hong Kong SAR, CHINA. , 5.Department of Biology, Macquarie University, North Ryde, NSW, 2109, AUSTRALIA., 6.CREOCEAN, Agence PACA Corse, 230 Avenue de Rome, Valparc-Bât B, F-83500 La Seyne sur Mer, FRANCE. )

[BPT04-P03] Comparison between assemblages of diatom fossil and biomarkers in surface sediments from Seto Inland Sea

*Kotaro Hirose¹, Hideto Nakamura², Takuto Ando⁴, Satoshi Asaoka³, Ken Sawada⁵ (1.Faculty of Science & Engineering, Waseda University, 2.Faculty of Science, Osaka City University, 3.Research Center for Inland Seas & Department of Planetology, Kobe University, 4.Arctic Research Center, Hokkaido University, 5.Department of Earth & Planetary Science, Faculty of Science, Hokkaido University)

[BPT04-P04] Combined impacts of ocean acidification and desalination: culture experiments on the coastal species Ammonia sp. and Elphidium crispum

*Laurie Marie Charrieau¹, Helena L. Filipsson², Yukiko Nagai¹, Sachiko Kawada¹, Karl Ljung², Emma Kritzberg³, Takashi Toyofuku^1,4 (1.Japan Agency for Marine-Earth Science and Technology, 2.Department of Geology, Lund University, Sweden, 3.Department of Biology, Lund University, Sweden, 4.Tokyo University of Marine Science and Technology (TUMSAT), Japan)

[BPT04-P05] Effects on larger benthic foraminiferal shell density under global warming

★Invited Papers

*Shunichi Kinoshita¹, Azumi Kuroyanagi², Hiroshi Nishi², Osamu Sasaki², Kazuhiko Fujita³, Atsushi Suzuki⁴, Hodaka Kawahata⁵ (1.Graduate School of Science, Tohoku University, 2.The Tohoku University Museum, The Center for Academic Resources and Archives, Tohoku Univerity, 3.Department of Physics and Earth Sciences, Faculty of Science and Tropical Biosphere Research Center, University of the Ryukyus, 4.Geological Survey of Japan National Institute of Advanced Industrial Science and Technology, 5.Atmosphere and Ocean Research Institute, the University of Tokyo)

[BPT04-P06] Estimation of the calcification rate of foraminifera -exceptionally fast extending of the shell-

*Yukiko Nagai^1,2, Katsuyuki Uematsu³, Takashi Toyofuku^2,4 (1.National Museum of Nature and Science of Tokyo, 2.Japan Agency for Marine-Earth Science and Technology, 3.Marine Works Japan Enterprise, 4.Tokyo university of Marine Science and Technology)

[BPT04-P07] Estimation of foraminiferal calcification process from live imaging and FIB-SEM approach

*Takashi Toyofuku^1,2, Yukiko Nagai^1,3 (1.Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2.Tokyo University of Marine Science and Technology, 3.National Museum of Nature and Science,Tokyo)

[BPT04-P08] Toward a better understanding of planktic foraminiferal proxies: Are they photosymbiotic or not?

*Haruka TAKAGI¹, Katsunori KIMOTO², Tetsuichi FUJIKI², Kazuyoshi MORIYA³, Hiroaki SAITO¹ (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.Japan Agency for Marine-Earth Science and Technology, 3.School of Education, Waseda University)

[BPT04-P09] Evaluation of geochemistry in hypercalcified demosponges as a paleoceanographic proxy

*Ryuji Asami¹, Tohru Naruse², Masaru Mizuyama³, Ryu Uemura³, Ryuichi Shinjo³, Yuji Ise⁴, Yoshihisa Fujita⁵, Takashi Sakamaki⁶ (1.Graduate School of Science, Tohoku University, 2.Tropical Biosphere Research Center, University of the Ryukyus, 3.Faculty of Science, University of the Ryukyus, 4.Centre for Marine and Coastal Studies, Universiti Sains Malaysis, 5.Okinawa Prefectural University of Arts, 6.Graduate School of Engineering, Tohoku University)

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