Post-cruise BIOSOPE meeting
27 - 29 June 2005
From To
09:00 09:30 00:30 Coffee
09:30 09:45 00:15 Hervé Claustre Introduction
Biodiversity
09:45 10:05 00:20 Daniel Vaulot Diversité des eucaryotes du picoplancton : Cultures et planification des analyses moléculaires
10:05 10:25 00:20 Carolina Grob Picophytoplankton in the South Pacific Subtropical Gyre
10:25 10:45 00:20 Raphael LAMI
I. Obernosterer,
Heterotrophic prokaryotic diversity: Patterns across the euphotic zone and in the sea surface microlayer (I. Obernosterer, R. Lami et P. Lebaron)
10:45 11:05 00:20 Hervé Claustre Composition of phytoplankton >15 µm during the BIOSOPE cruise (Fernando Gomez)
11:05 11:20 00:15 John Dolan Comparison of the Tintinnid Community (microzooplankton) from HLN1 and Dynaproc 2
11:20 11:40 00:20 Manon Viprey Projet de thèse pour la campagne BIOSOPE
Bio-optics
11:40 12:00 00:20 André Morel South Pacific Gyre: the clearest oceanic waters?
12:00 12:20 00:20 Nordine Souaidia Results from upwelling radiance distribution measurements.
12:20 14:00 01:40 Lunch time
14:00 14:20 00:20 Marc Tedetti Attenuation of UV radiation in the water column
14:20 14:40 00:20 Dariusz Stramski Particulate organic carbon and light scattering measurements on the Biosope cruise
14:40 15:00 00:20 Hervé Claustre Pigment distribution in the South Pacific
15:00 15:20 00:20 Fanny Tieche Contribution of  different types of particles (Phytoplankton and "Non Algal Particles") to the total particle absorption coefficient in BIOSOPE area
15:20 15:40 00:20 Annick Bricaud Absorption properties of CDOM and marine particles in the BIOSOPE area, as measured with the Ultrapath liquid capillary waveguide (F. Tièche, A. Bricaud, H. Claustre)
15:40 16:00 00:20 Yannick Huot Photosynthesis in the ultra-oligotrophic waters of the South-Pacific Gyre and bordering waters during the austral spring
16:00 16:30 00:30 Coffee break
16:30 16:50 00:20 Daniel Vaulot Effets des UV sur les cyanobactéries : travaux en cours
16:50 17:10 00:20 Maxim Gorbunov Biophysical assessment of phytoplankton photosynthesis and primary productivity during the BIOSOPE
17:10 17:30 00:20 Ondrej Prasil Chlorophyll and Bacteriochlorphyll fluorescence measurements during LEG2
17:30 17:50 00:20 Antoine Sciandra Dynamique diurne de la distribution en taille des particules au cours de Biosope.
17:50 18:30 00:40 Discussion
Biogeochemistry
09:00 09:20 00:20 Catherine Goyet Les variations du CO2 total pendant la campagne BIOSOPE
09:20 09:40 00:20 Patrick Raimbault Sels nutritifs et production incluant la diazotrophie
09:40 10:00 00:20 Marlon Lewis Nutrient return in the clearest ocean waters
10:00 10:20 00:20 Stéphane Blain Dissolved iron distributions in the South East Pacific (Blain S., Bonnet S. Guieu C.)
10:20 10:50 00:30 Coffee break
10:50 11:10 00:20 Thierry Moutin Phosphate pools and turnover times in the South Pacific gyre (BIOSOPE cruise) (Moutin, Rimmelin & Duhamel)
11:10 11:30 00:20 Peggy Rimmelin Preliminary results on Si-cycle in the BIOSOPE area: biogenic and lithogenic silica stock and biogenic silica production (Peggy Rimmelin and Bernard Queguiner)
11:30 11:50 00:20 Solange Duhamel Coupling primary production and phosphate uptake in the South Pacific gyre (BIOSOPE cruise) (Duhamel & Moutin)
11:50 12:10 00:20 Sophie Bonnet Colimitation in a gradient of Trophic Regimes in the South East Pacific Ocean: responses from microcosm enrichment experiments (Sophie Bonnet et al.)
12:10 14:00 01:50 Lunch time
14:00 14:25 00:25
Thibaut Wagener et Remi Losno Atmospheric sampling during the BIOSOPE cruise: objectives, strategy and preliminary results (Thibaut Wagener, C. Guieu et R. Losno)
14:25 14:45 00:20 France Van Wambeke Les productions et activites enzymatiques bacteriennes. Trend spatial, relations production bacterienne - production primaire et facteurs limitants. (Van Wambeke et al.)
14:45 15:05 00:20 Imma Tolosa Characterization of the different contrasting environments of the South East Pacific by lipid biomarkers
15:05 15:25 00:20 Marc Tedetti Impact of UV radiation on bacterial cycling of dissolved organic matter
15:25 15:45 00:20 Benjamin Van Mooy Phospholipid synthesis by heterotrophic bacteria was a significant biochemical sink for planktonic phosphorus uptake
15:45 16:05 00:20 Juan Carlos Miquel Export fluxes in contrasting environments of the South-East Pacific
16:05 16:35 00:30 Coffee break
16:35 16:55 00:20 Lionel Guidi Standing stock and calculated fluxes of the particulate matter in the SE Pacific  (BIOSOPE  cruise). (Lionel Guidi, Marc Picheral, Lars Stemmann, Gaby Gorsky)
16:55 17:05 00:10 Antoine Sciandra BIOSOPE database
17:05 18:30 01:25 Discussion
H. Claustre Conclusion