Poster (Scientific congresses and symposiums)
Towards a comprehensive C-budgeting approach of a coccolithophorid bloom in the Northern Bay of Biscay (June 2006)
Harlay, Jérôme; Borges, Alberto; De Bodt, Caroline et al.
2009ASLO Aquatic Science Meeting
 

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Abstract :
[en] A biogeochemical multidisciplinary survey was carried out in the northern Bay of Biscay, in early June 2006, during which 14C-based primary production and calcification were determined as well as O2-based community respiration. Contemporary remote sensing images showed several patches of high reflectance (HR) in the investigated area. Based on remote sensing and in situ measured biogeochemical parameters, the area exhibited varying coccolithophorid bloom stages from its early development to the post-bloom stages. The major HR patch, characterizing a post-stationary stage of the bloom, was located between 48°N and 49°N over the shelf along the continental margin. It was associated with moderate chlorophyll-a levels, never exceeding 1.0 µg L-1, dissolved phosphorus and silica depletion, and undersaturation of CO2 with respect to atmospheric equilibrium. Considered as the main drivers of the C cycle in this area, the CO2 fluxes associated with primary production, calcification and respiration were integrated in order to provide a comprehensive C budget in the area.
Disciplines :
Aquatic sciences & oceanology
Environmental sciences & ecology
Author, co-author :
Harlay, Jérôme ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Océanographie chimique
Borges, Alberto  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Océanographie chimique
De Bodt, Caroline;  Laboratoire d’Océanographie Chimique et Géochimie des Eaux, Faculté des Sciences, Université Libre de Bruxelles, B-1050 Brussels, Belgium
d'Hoop, Quentin;  Laboratoire d’Océanographie Chimique et Géochimie des Eaux, Faculté des Sciences, Université Libre de Bruxelles, B-1050 Brussels, Belgium
Piontek, Judith;  Alfred Wegener Institute for Polar and Marine Research, D-27515 Bremerhaven, Germany
Roevros, Nathalie;  Laboratoire d’Océanographie Chimique et Géochimie des Eaux, Faculté des Sciences, Université Libre de Bruxelles, B-1050 Brussels, Belgium
Suykens, Kim;  Unité d’Océanographie Chimique, Université de Liège, B-4000 Liège, Belgium
Van Oostende, Nicolas;  Protistologie & Aquatische Ecologie, Universiteit Gent, B-9000 Gent, Belgium
Engel, Anja;  Alfred Wegener Institute for Polar and Marine Research, D-27515 Bremerhaven, Germany
Groom, Steve;  Remote Sensing Group, Plymouth Marine Laboratory, Plymouth PL1 3DH, United Kingdom
Sabbe, Koen;  Protistologie & Aquatische Ecologie, Universiteit Gent, B-9000 Gent, Belgium
Chou, Lei;  Laboratoire d’Océanographie Chimique et Géochimie des Eaux, Faculté des Sciences, Université Libre de Bruxelles, B-1050 Brussels, Belgium
Language :
English
Title :
Towards a comprehensive C-budgeting approach of a coccolithophorid bloom in the Northern Bay of Biscay (June 2006)
Publication date :
25 January 2009
Event name :
ASLO Aquatic Science Meeting
Event organizer :
http://www.aslo.org/
Event place :
Nice, France
Event date :
25-30 January 2009
Audience :
International
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since 05 January 2011

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