TABLE OF CONTENTS DAILY SESSION PROGRAMS...........................................................................................................................15 Opening Ceremony, Michael Fasham ..................................................................................................................15 Ocean Biogeochemical Regimes, Chaired by Hugh Ducklow ............................................................................15 Continental Margin Exchanges, Chaired by Arthur Chen ................................................................................15 Carbon Dioxide Fluxes in the Global Oceans, Chaired by Andrew J. Watson ................................................17 Primary Production and Export, Chaired by Paul Falkowski...........................................................................18 Biogeochemistry Below the Euphotic Zone, Chaired by Paul Tréguer.............................................................19 Community Structure in Regulating Export, Chaired by Michael Landry......................................................20 Deep Ocean Fluxes, Chaired by Karin Lochte ....................................................................................................21 Global Ocean Carbon and Ecosystem Modeling, Chaired by Scott Doney ......................................................22 Feedback Processes and Climate Change, Chaired by Phillip Boyd.................................................................23 Temporal Studies of Biogeochemical Processes, Chaired by David Karl .........................................................24 Closing Ceremony, Hugh Ducklow ......................................................................................................................25 DETAIL THEME SESSIONS: ABSTRACTS ....................................................................................................26 OCEAN BIOGEOCHEMICAL REGIMES........................................................................................................26 Ducklow, Hugh (Invited Speaker) ........................................................................................................................26 Ocean biogeochemical regimes............................................................................................................................26 Avril, Bernard ........................................................................................................................................................27 Dynamics of the dissolved organic carbon - biogeochemical and ecological considerations ..............................27 Bange1, H. W., T. Rixen2, A. M. Johansen3, R. L. Siefert3, R. Ramesh4, V. Ittekkot2, M. R. Hoffmann3 and M. O. Andreae1.......................................................................................................................................................27 A revised nitrogen budget for the Arabian Sea ....................................................................................................27 Claustre, Hervé, and other PROSOPE scientists ................................................................................................28 The PROSOPE cruise: a multidisciplinary investigation of various biogeochemical provinces with particular emphasis on phosphate limitation and on the daily time scale.............................................................................28 Dadou1, Isabelle, Geoffrey Evans2 and Véronique Garçon1 ...............................................................................28 Using JGOFS in-situ and ocean colour data to compare biogeochemical models and estimate their parameters in the subtropical Atlantic ........................................................................................................................................28 2 Hansell, Dennis A., Anthony H. Knap and Nicholas R. Bates............................................................................29 The Sargasso Sea Ocean Observatory..................................................................................................................29 Hebbeln, Dierk & Wefer, Gerold..........................................................................................................................29 Seasonal and Interannual Variations in the Particle Flux in the Eastern Boundary Current off Chile.................29 Johannessen1, Truls, Leif Anderson2, Eva Falck1, Eystein Jansen3, Are Olsen1, Abdirahman M. Omar1 and Ingunn Skjelvan1 ....................................................................................................................................................30 The carbon cycle in the Nordic Seas: A synthesis of work done during the CARDEEP era ...............................30 Koeve1,2, W., P. Kähler1,2, L. Mintrop1,3 and B. Zeitzschel1................................................................................30 Budgets for carbon, nitrogen and oxygen for a typical station in the temperate Northeast Atlantic (Biotrans- NABE-47 Site).....................................................................................................................................................30 Lefévre, D., S.O. Roy, P. Conan, G. Gregori, M. Denis and C. Goyet...............................................................31 Incidence of frontal structures on biological CO2 fluxes .....................................................................................31 Mackey, Denis J., F Brian Griffiths, Harry W Higgins, John S Parslow and Bronte Tilbrook......................31 Physical chemical and biological controls on the carbon cycle in the warm pool of the western Equatorial Pacific ..................................................................................................................................................................31 McNeil, B.I., B. Tilbrook, R. J. Matear and W. Wang .......................................................................................32 The annual cycle of DIC and d13C-DIC in the sub-Antarctic zone, south of Australia: the role of biological production, mixing and air-sea exchange.............................................................................................................32 McLaren1, Alison J., Richard G. Williams1, Michael J. Follows2 and Andrew J. Watson3.............................32 Interannual variations in the carbon solubility pump over the North Atlantic inferred from air-sea heat fluxes.33 Morales, Carmen E................................................................................................................................................33 An appraisal of the shallow oxygen minimum layer in the Humboldt Current system and its impact on the regional biogeochemical cycling..........................................................................................................................33 Olafsson1, Jon, and Helge Drange2 .......................................................................................................................34 North Atlantic seasonal biogeochemical changes................................................................................................34 Omar, Abdirahman M., and Truls Johannessen.................................................................................................34 Chemical characterisation of brine waters in the Barents Sea..............................................................................34 Prasanna Kumar, S., M. Madhupratap and M. Dileep Kumar.........................................................................35 Physical control of biological productivity on a seasonal scale in the central Arabian Sea.................................35 Quéguiner1, B., S. Blain2, P. Boyd3, D. Hutchins4 and P. Sedwick5....................................................................35 Multiple limiting factors at the first trophic level: iron and silicon interactions control phytoplankton production and particulate matter characteristics in Southern Ocean subsystems..................................................................35 Rivkin1, Richard B., Louis Legendre2 and M. Robin Anderson3 .......................................................................36 Global pattern in bacterial processes: Influence on carbon cycling in the upper ocean.......................................36 Rixen, Tim, Ralf Lendt, Birgit Gaye-Haake and Venugopalan Ittekkot ..........................................................37 A SW monsoon carbon and nitrogen budget for the Arabian Sea........................................................................37 Schiebel, Ralf, and Christoph Hemleben .............................................................................................................37 Planktonic foraminiferal population dynamics and carbon budget ......................................................................37 Skjelvan1, Ingunn, Eva Falck1, Leif G. Anderson1,2 and Francisco Rey3...........................................................37 3 Oxygen fluxes in the Norwegian Atlantic Current...............................................................................................38 Williams1, Richard G., and Mei-Man Lee2 ..........................................................................................................38 On the eddy transfer of nutrients to the euphotic zone: advective or diffusive? ..................................................38 Waniek1, J., W. Koeve1,2 and P. Kähler 1..............................................................................................................39