Data/hora: 27/07/2024 02:47:27

Provedor de dados: 	Institutional Archive of Ifreme (ArchiMer)	
País: 	France	
Título: 	Les métaux (Cd, Cu, Pb et Zn) dans la production des microalgues sur différents milieux de  culture : biodisponibilité, bioaccumulation et impact physiologique	
Autores: 	Gagneux-moreaux, Sindy.	
Data: 	2006-10-30	
Ano: 	2006	
Palavras-chave: 	Metal speciation; Artifical medium DAM; Salt groundwater; Coastal seawater; Tetraselmis suecica; Skeletonema costatum; Phaeodactylum tricornutum; Haslea ostrearia; Spéciation métallique; Milieu artificiel DAM; Eau souterraine salée; Eau de mer; Tetraselmis suecica; Skeletonema costatum; Phaeodactylum tricornutum; Haslea ostrearia.	
Resumo: 	The quality and the productivity of microalgal cultures depend on different physicochemical factors like salinity, pH, nutrient and trace element (including trace metals) concentration in the culture medium. During this doctoral study, the bioavailability of four metals for microalgae was tested in coastal seawater and several salt groundwaters. The bioavailability of a metal depends on its own total concentration as well as that of ligands in the medium, and on the relative affinity of each ligand towards the given metal. After a comparative study of the quality of algae grown in coastal seawater and salt groundwaters, the complexation capacities of these media were studied to allow a better understanding of the observed variations of metal bioaccumualtion in the produced microalgae. An experimental study with a new artificial medium (DAM) developed during our work allowed to put forward some hypotheses regarding the interspecific variations of metal bioaccumulation.	
Tipo: 	Text	
Idioma: 	Francês	
Identificador: 	http://archimer.ifremer.fr/doc/2006/these-3128.pdf	
Editor: 	Université de Nantes	
Relação: 	http://archimer.ifremer.fr/doc/00000/3128/	
Formato: 	application/pdf