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Influence of ambient oxygenation and temperature on metabolic scope and scope for heart rate in the common sole Solea solea ArchiMer
Lefrancois, Christelle; Claireaux, Guy.
The objective of this study was to quantify the constraints exerted by temperature and oxygenation on both metabolic scope and scope for heart rate of the common sole Solea solea. We exposed sole to a large range of temperature and oxygenation conditions and a modelling procedure was implemented to describe metabolic and cardiac responses. Standard metabolic rate (SMR) rose exponentially from 4 to 24degreesC, whereas active metabolic rate (AMR) increased from 55.4 to 159.2 mgO(2) kg(-1) h(-1) between 4 and 19.7degreesC, and then dropped to 129.9 mgO(2) kg(-1) h(-1) at 24degreesC. In parallel, optimal temperature for maximising metabolic scope, defined as the difference between AMR and SMR, was estimated to 18.8degreesC. Active heart rates increased...
Tipo: Text Palavras-chave: Metabolic scope; Heart rate; Biological performance; Temperature; Oxygen; Common sole.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/00000/10690/7594.pdf
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