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Short title
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Proxies for Biogeosciences
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Oral presentation
Date/Room/Chair
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May 25 AM1 (09:00 - 10:30)
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103
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Hiroshi Kitazato
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May 25 AM2 (10:45 - 12:15)
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103
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Takashi Toyofuku
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May 25 PM1 (13:45 - 15:15)
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103
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Hidetaka Nomaki
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Poster presentation
Date/Room
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May 25 (Core Time 15:30 - 16:45)
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Contact
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Hiroshi Kitazato
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Email
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kitazatoh@jamstec.go.jp
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Convener
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Hiroshi Kitazato
/ Jelle Bijma
/ Takashi Toyofuku
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Scope
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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 maybe 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 biocalcification mechanisms and the incorporation of proxy signals.
In this session we invite contributions related to the biocalcification, calibration and validation of marine proxies.
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Notes
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| Time |
Presentation No |
Title |
Author |
Presenter |
Abstract |
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Oral Presentation May 25 AM1 (09:00-10:30) 103 to the top
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09:00 - 09:15
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BPO02-01
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General Introduction
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Hiroshi Kitazato
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Hiroshi Kitazato
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09:15 - 09:45
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Invited
BPO02-02
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Calcification mechanisms in foraminifera and proxy incorporation
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Jelle Bijma
Gernot Nehrke
Lennart Jan de Nooijer
other
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Jelle Bijma
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09:45 - 10:00
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BPO02-03
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Foraminiferal cellular Calcium and pH distribution under laboratory culture experiment
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Takashi Toyofuku
Lennart Jan de Nooijer
Hidetaka Nomaki
other
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Takashi Toyofuku
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10:00 - 10:15
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BPO02-04
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Impacts of ocean acidification on foraminiferal calcification
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Nina Keul
Gerald Langer
Lennart Jan de Nooijer
other
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Nina Keul
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10:15 - 10:30
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BPO02-05
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Effects of ocean acidification on trace elements ratio (Mg/Ca, Sr/Ca, Ba/Ca and U/Ca) in two foraminifer species
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Christelle Not
Yusuke Yokoyama
Yuta Kawakubo
other
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Christelle Not
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Oral Presentation May 25 AM2 (10:45-12:15) 103 to the top
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10:45 - 11:00
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BPO02-06
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Mg isotope fractionation in Porites coral skeletons: evaluation of a new climate proxy from culture experiments
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Toshihiro Yoshimura
Masaharu Tanimizu
Atsushi Suzuki
other
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Toshihiro Yoshimura
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11:00 - 11:15
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BPO02-07
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Seasonal changes in shell microstructures of the bloody clam, Scapharca broughtonii (Mollusca: Bivalvia)
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Kozue Nishida
Takenori Sasaki
Toyoho Ishimura
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Kozue Nishida
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11:15 - 11:30
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BPO02-08
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Carbon- and oxygen-isotope compositions of a modern brachiopod collected from east coast of Sokcho, Korea
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Hideko Takayanagi
Kyung Sik Woo
Ryuji Asami
other
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Hideko Takayanagi
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11:30 - 11:45
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BPO02-09
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Application of coral 15N proxy: interannual variability of water mass in Tatsukushi Bay due to Kuroshio volume changes
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Atsuko Yamazaki
Tsuyoshi Watanabe
Urumu Tsunogai
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Atsuko Yamazaki
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11:45 - 12:00
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BPO02-10
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Detecting algal photosymbiosis from ontogenetic isotope analyses of living planktonic foraminiferal test from Sagami Bay
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Haruka TAKAGI
Kazuyoshi MORIYA
Toyoho ISHIMURA
other
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Haruka TAKAGI
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12:00 - 12:15
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BPO02-11
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Genetic populations of planktic foraminifera in the Northwest Pacific
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Atsushi Kurasawa
Masashi Tsuchiya
Takashi Toyofuku
other
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Atsushi Kurasawa
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Oral Presentation May 25 PM1 (13:45-15:15) 103 to the top
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13:45 - 14:00
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BPO02-12
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Implications for paleo-reconstruction based upon oxygen isotopic ratio of different sized polar planktonic foraminifera
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Azumi Kuroyanagi
hodaka kawahata
Hiroshi Nishi
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Azumi Kuroyanagi
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14:00 - 14:15
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BPO02-13
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ECOLOGY OF LIVE BENTHIC FORAMINIFERA FROM THE WHITTARD CANYON (NE ATLANTIC)
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Pauline Duros
Christophe Fontanier
Edouard Metzger
other
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Pauline Duros
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14:15 - 14:30
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BPO02-14
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TEX86 and seasonal distributions of archaeal membrane lipids across the chemocline in the modern shallow coastal ocean
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Kazuyoshi Moriya
Michinobu Kuwae
Masanobu Yamamoto
other
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Kazuyoshi Moriya
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14:30 - 14:45
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3-min talk in an oral session
| Presentation No |
Title |
Author |
Presenter |
Abstract |
| BPO02-P01 |
The effect of high pCO_{2} seawater on foraminiferal oxygen and carbon isotopes |
Mana Hikami
Toyoho Ishimura
Kazuhiko Fujita
other |
Mana Hikami |
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| BPO02-P02 |
Differing utilization of nitrate nitrogen in shallow-water benthic foraminiferal cells under oxic/anoxic conditions |
Hidetaka Nomaki
Yoshito Chikaraishi
Masashi Tsuchiya
other |
Hidetaka Nomaki |
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| Presentation No |
Title |
Author |
Presenter |
Abstract |
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Poster Presentation May 25 Core Time (15:30-16:45) to the top
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BPO02-P01
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The effect of high pCO_{2} seawater on foraminiferal oxygen and carbon isotopes
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Mana Hikami
Toyoho Ishimura
Kazuhiko Fujita
other
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Mana Hikami
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BPO02-P02
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Differing utilization of nitrate nitrogen in shallow-water benthic foraminiferal cells under oxic/anoxic conditions
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Hidetaka Nomaki
Yoshito Chikaraishi
Masashi Tsuchiya
other
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Hidetaka Nomaki
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BPO02-P03
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Element profile and chemical environment of sulfur in clam shell: insights from micro-XRF and XANES
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Toshihiro Yoshimura
Yusuke Tamenori
Atsushi Suzuki
other
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Toshihiro Yoshimura
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