ORBi: Pete Dorothée - Small scale variations in the microbenthic loop of Posidonia oceanica meadows: an experimental interpolation design.

Reference : Small scale variations in the microbenthic loop of Posidonia oceanica meadows: an experi...


	Document type :	Scientific congresses and symposiums : Poster
	Discipline(s) :	Life sciences : Environmental sciences & ecology Life sciences : Microbiology Life sciences : Aquatic sciences & oceanology
	To cite this reference:	http://hdl.handle.net/2268/8949

Title :	Small scale variations in the microbenthic loop of Posidonia oceanica meadows: an experimental interpolation design.
Language :	English
Author, co-author :	Pete, Dorothée [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Océanologie >]
	Lenartz, Fabian [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO) >]
	Velimirov, Branko [Medizinische Universiät Wien > Microbiology]
	Bouquegneau, Jean-Marie [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Océanologie >]
	Gobert, Sylvie [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Océanologie >]
Publication date :	Aug-2008
Page number :	140x100 cm
Peer reviewed :	No
On invitation :	No
Audience :	International
Event name :	8th International Seagrass Biology Workshop
Event date :	du 31 août au 6 septembre 2008
Event place (city) :	Bamfield
Event country :	Canada
Keywords :	[en] small scale ; seagrass ; microbenthic loop
Abstract :	[en] In the sediment compartment of Posidonia oceanica meadows, there is a severe lack of information on small scale variations. In an attempt to understand spatial variations of the microbenthic loop (bacteria, organic matter, microphytobenthos and meiofauna), an experiment based on interpolation methods was led in Calvi Bay (Corsica, France), in March 2008, at 10 m depth. Twelve points were sampled randomly in a 125 x 125 cm square, divided into twenty-five 25 x 25 cm squares, to assess and describe the spatial distribution and variations of different parameters of the sediment. Those parameters are granulometry, density of P. oceanica, concentration in nutrients in the pore water, bacteria (biomass, abundance, morphotypes), organic matter (biomass), microphytobenthos (biomass), roots and rhizomes (biomass) and meiofauna (biomass). Results and distribution maps of the respective sediment parameters will be presented for the first time.
Funders :	Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Name of the research project :	Utilisation de l'exergie pour mesurer et détecter les effets des perturbations affectant les herbiers à Posidonia oceanica (L.) Delile: caractérisation au sein du compartiment sédimentaire.
Target :	Researchers ; Professionals ; Students
Permalink :	http://hdl.handle.net/2268/8949

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