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Session 2. BIO Topic Session
Understanding the role of iron in regulating biogeochemical cycles and ecosystem structures in the North Pacific Ocean
Co-sponsored by SOLAS

Co-Convenors: Angelica Peña (Canada), Toshi Saino (Japan) and Mark Wells (U.S.A.)

Iron plays a key role in regulating the biogeochemical cycles of carbon and nitrogen, and pelagic ecosystem structures in the North Pacific Ocean, yet our understanding of these effects remains limited. External sources of iron, such as Asian dust, rivers, sediments, and volcanoes, supply large amounts of iron to the North Pacific, while the physical processes of upwelling, meso-scale eddies, boundary currents, and tidal mixing transport deep waters with high iron concentration to the upper ocean. Biological uptake, zooplankton grazing, re-mineralization, and iron chemistry change the forms of iron and its distribution in the North Pacific Ocean. This session invites papers that address physical, biological and chemical processes controlling iron distribution and transformation, linkages between iron and ecosystem responses, and impacts on carbon and nitrogen cycles. Of special interest are papers that combine recent progress from field observations and modeling studies that relate iron cycling to ecosystem structures and carbon fluxes in the North Pacific Ocean.

 
Tuesday, October 26, 2010
 

Jay T. Cullen and Maria T. Maldonado (Invited)
Iron speciation and bioavailability: Insight gained from analytical chemistry and microbial physiology (S2-6818)
(pdf, 5 Mb)

 

Eric G. Roy and Mark L. Wells
Evidence for regulation of Fe(II) Oxidation Rates by Organic Complexing Ligands in the Eastern Subarctic Pacific (S2-6840)
(permission to post denied, contact presenter)

 

Kazuhiro Misumi, Daisuke Tsumune, Yoshikatsu Yoshida, Takeshi Yoshimura, Keisuke Uchimoto, Tomohiro Nakamura, Jun Nishioka, Humio Mitsudera, Frank O. Bryan, Keith Lindsay, J. Keith Moore and Scott C. Doney
Mechanisms controlling dissolved iron distribution in the North Pacific: A model study (S2-6762)
(pdf, 1.4 Mb)

 

William Crawford
Advection of deep-sea and coastal water into the HNLC region of the northeast Pacific Ocean (S2-6849)
(pdf, 3.2 Mb)

 

Huiwang Gao, Xiaohong Yao, Jinhui Shi and Jianhua Qi (Invited)
Response of marine ecosystem to Asian dust fertilization from coastal sea to open ocean
(S2-6622)
(waiting for permission)

 

Josiane Mélançon, Maurice Levasseur, Martine Lizotte, Jean-Éric Tremblay, Gui-Peng
Yang, Marjolaine Blais, Guangyu Shi, Hui-Wang Gao, Michael Arychuk, Keith Johnson,
Nes Sutherland, Marie Robert and Wendy Richardson

Impact of Asian dust on plankton and DMS production in the Northeast Subarctic Pacific
(S2-6850)
(permission to post denied, contact presenter)

 

Jun Nishioka, Tsuneo Ono, Hiroaki Saito, Keiichiro Sakaoka and Takeshi Yoshimura
Oceanic iron supply mechanisms supporting the spring diatom bloom in the Oyashio region,
western subarctic Pacific (S2-6707)
(pdf, 0.7 Mb)

 

Hiroaki Saito, Jun Nishioka, Atsushi Tsuda and Hiroaki Tatebe
The role of zooplankton in buffering geographical heterogeneity of primary productivity
(S2-6859)
(pdf, 1.4 Mb)

 

Fei Chai, Peng Xiu, Huijie Xue, Lei Shi and Yi Chao
Modeling impacts of mesoscale eddies on iron cycle and biogeochemical processes in the Gulf
of Alaska (S2-6649)
(waiting for permission)

 

Emilie Brévière
The international Surface Ocean - Lower Atmosphere Study (SOLAS) project and its midterm
strategy (S2-6862)
(pdf, 3.8 Mb)

 

Hong Chen, Jianbo Han and Xiaomeng Wang
A review of the influence of ocean fertilization on marine biodiversity (S2-6483)
(pdf, 0.7 Mb)

 
 
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