ORBi: Chou Lei - Biogeochemical Investigations of Coccolithophore Blooms along the Continental Margin of the Northern Bay of Biscay: Highlights of the PEACE Project

Reference : Biogeochemical Investigations of Coccolithophore Blooms along the Continental Margin of ...


	Document type :	Scientific congresses and symposiums : Poster
	Discipline(s) :	Life sciences : Environmental sciences & ecology Life sciences : Aquatic sciences & oceanology
	To cite this reference:	http://hdl.handle.net/2268/81243

Title :	Biogeochemical Investigations of Coccolithophore Blooms along the Continental Margin of the Northern Bay of Biscay: Highlights of the PEACE Project
Language :	English
Author, co-author :	Chou, Lei [Laboratoire d’Océanographie Chimique et Géochimie des Eaux, Faculté des Sciences, Université Libre de Bruxelles, B-1050 Brussels, Belgium > > > >]
	Harlay, Jérôme [Université de Liège - ULg > 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 > > > >]
	Roevros, Nathalie [Laboratoire d’Océanographie Chimique et Géochimie des Eaux, Faculté des Sciences, Université Libre de Bruxelles, B-1050 Brussels, Belgium > > > >]
	Borges, Alberto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Océanographie chimique >]
	Suykens, Kim [Unité d’Océanographie Chimique, Université de Liège, B-4000 Liège, Belgium > > > >]
	Delille, Bruno [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Océanographie chimique >]
	Sabbe, Koen [Protistologie & Aquatische Ecologie, Universiteit Gent, B-9000 Gent, 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 > > > >]
	Piontek, Judith [Alfred Wegener Institute for Polar and Marine Research, D-27515 Bremerhaven, Germany > > > >]
	Borchard, Corinna [Alfred Wegener Institute for Polar and Marine Research, D-27515 Bremerhaven, Germany > > > >]
	Händel, Nicole [Alfred Wegener Institute for Polar and Marine Research, D-27515 Bremerhaven, Germany > > > >]
	Schmidt, Sabine [EPOC, UMR 5805, Université Bordeaux 1, Talence, France > > > >]
	Groom, Steve [Remote Sensing Group, Plymouth Marine Laboratory, Plymouth PL1 3DH, United Kingdom > > > >]
Publication date :	6-Oct-2008
On invitation :	No
Audience :	International
Event name :	2nd Symposium on the Ocean in a High-CO2 World
Event date :	6-8 October 2008
Event organizer :	SCOR, IOC, IAEA, IGBP
Event place (city) :	Monaco
Event country :	Monaco
Abstract :	[en] Recent studies have demonstrated that changing ocean chemistry due to ocean acidification poses a growing threat for marine organisms such as corals, coccolithophores and many others that form calcareous skeletons. Its biogeochemical feedbacks and impact on the oceanic carbon cycle are yet to be quantified. Coccolithophores are the major calcifying phytoplankton in the sub-polar and temperate regions of the world’s ocean. They produce furthermore transparent exopolymer particles (TEP), which are known to promote aggregate formation. Combined with the CaCO3 ballast effect, large-scale coccolithophore blooms could thus contribute to the export of organic carbon to deep waters on relatively short time scales. During the Belgian PEACE project, we have conducted yearly interdisciplinary biogeochemical surveys, assisted by remote sensing, along the continental margin of the northern Bay of Biscay where coccolithophore blooms dominated by Emiliania huxleyi are frequently and recurrently observed (Figure 1). Rates of various processes governing the coccolithophore ecosystem dynamics have been determined and associated biogeochemical parameters analysed. The overall objective is to evaluate the role in climate regulation of calcification, primary production and export processes during coccolithophore blooms. Here we report the principal results obtained during the 2006 campaign.
Target :	Researchers ; Professionals ; Students
Permalink :	http://hdl.handle.net/2268/81243

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