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Effets des caractéristiques physico-chimiques et biorhéologiques de l'eau sur la physiologie, les performances adaptatives et la sélection de l'habitat chez la sole commune Solea solea (Linnaeus, 1758) ArchiMer
Couturier, Christine.
Shellfish culture can lead to an accumulation of exopolysaccharides (EPS) over the surface of intertidal mudflats. EPS are rheologically active polymers that change water viscosity and water flow over the branchial basket of the juvenile flatfish that colonise intertidal mudflats. The aim of this study was to assess the impact of water EPS content on various aspects of the physiology and behaviour of the common sole Solea solea. Field studies revealed that water total EPS can be up to 15 mg l 1 in the field. In sole juveniles (aged class 0+) ventilatory distress was observed at concentrations above 4 mg l-1, and the intensity of the constraint decreased with fish size. Nonetheless, neither standard metabolic rate nor tolerance of hypoxia were influenced...
Tipo: Text Palavras-chave: Flatfish; SDA; Growth; Habitat selection; Metabolism; Hypoxia; EPS; Viscosity; Common sole; Poissons plats; SDA; Croissance; Sélection d'habitat; Métabolisme; Hypoxie; EPS; Viscosité; Sole commune.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/these-3461.pdf
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