ORBi: Joassin Pascal - A mathematical modelling of bloom of the coccolithophore Emiliania huxleyi in a mesocosm experiment

Reference : A mathematical modelling of bloom of the coccolithophore Emiliania huxleyi in a mesocosm...


	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/2268/83877

Title :	A mathematical modelling of bloom of the coccolithophore Emiliania huxleyi in a mesocosm experiment
Language :	English
Author, co-author :	Joassin, Pascal [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Océanologie >]
	Delille, Bruno [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Océanographie chimique >]
	Soetaert, Karline [Centre for Estuarine and Marine Ecology, Netherlands Institute of Ecology, Yerseke, The Netherlands > > > >]
	Borges, Alberto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Océanographie chimique >]
	Chou, Lei [Laboratoire d’Océanographie Chimique et Géochimie des Eaux, Faculté des Sciences, Université Libre de Bruxelles, B-1050 Brussels, Belgium > > > >]
	Engel, Anja [Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany > > > >]
	Gattuso, Jean-Pierre [Laboratoire d’Océanographie, Université Mixte de Recherche (UMR) 7093, Centre National de la Recherche Scientifique- Université Pierre et Marie Curie (CNRS-UPMC), BP 28, 06234 Villefranche-sur-mer Cedex, France > > > >]
	Harlay, Jérôme [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Océanographie chimique >]
	Riebesell, Ulf [Leibniz Institute of Marine Sciences, IFM-GEOMAR, Kiel, Germany > > > >]
	Suykens, Kim [Unite d'Oceanographie Chimique, Interfacultary Centre for Marine Research, Universite de Liege, Institut de Physique (B5), B-4000 Liege, Belgium > > > >]
	Grégoire, Marilaure [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Océanologie >]
Publication date :	23-Jul-2008
On invitation :	No
Audience :	International
Event name :	Advances in Marine Ecosystem Modeling Research (AMEMR) symposium
Event date :	23-26 July 2008
Event organizer :	http://www.amemr.info/default.html
Event place (city) :	Plymouth
Event country :	United Kingdom
Abstract :	[en] A dynamic model has been developed to represent biogeochemical variables and processes observed during a bloom of Emiliania huxleyi coccolithophore. This bloom was induced in a mesocosm experiment during which the ecosystem development was followed over a period of 23-days through changes in various biogeochemical parameters such as inorganic nutrients (nitrate, ammonium and phosphate), total alkalinity (TA), dissolved inorganic carbon (DIC), partial pressure of carbon dioxide (pCO2), dissolved oxygen (O2), photosynthetic pigments, particulate organic carbon (POC), dissolved organic carbon (DOC), Transparent Exopolymer Particles (TEP), primary production, and calcification. This dynamic model is based on unbalanced algal growth and balanced bacterial growth. In order to adequately reproduce the observations, the model includes an explicit description of phosphorus cycling, calcification, TEP production and an enhanced mortality due to viral lysis. The model represented carbon, nitrogen and phosphorus fluxes observed in the mesocosms. Modelled profiles of algal biomass and final concentrations of DIC and nutrients are in agreement with the experimental observations.
Target :	Researchers ; Professionals ; Students
Permalink :	http://hdl.handle.net/2268/83877

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