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dc.contributor.authorRemen, Mette
dc.contributor.authorOlsen, Rolf Erik
dc.contributor.authorOppedal, Frode
dc.contributor.authorThorsheim, Grethe Beate
dc.contributor.authorFolkedal, Ole
dc.contributor.authorSitjà-Bobadilla, Ariadna
dc.contributor.authorPérez-Sánchez, Jaume
dc.contributor.authorNederlof, Marit A. J.
dc.date.accessioned2015-09-07T09:13:17Z
dc.date.accessioned2015-09-11T09:13:18Z
dc.date.available2015-09-07T09:13:17Z
dc.date.available2015-09-11T09:13:18Z
dc.date.issued2015
dc.identifier.citationAquaculture Environment Interactions 2015, 7(2):115-123nb_NO
dc.identifier.issn1869-7534
dc.identifier.urihttp://hdl.handle.net/11250/299508
dc.description.abstractWe investigated the effect of temperature on the limiting oxygen saturation (LOS) of gilthead sea bream Sparus aurata. This threshold was defined as the % O2 saturation where fish no longer upheld their routine metabolic rate (RMR, the metabolic rate of fed and active fish) during a progressive decline in oxygen saturation. S. aurata (398 ± 10 g, mean ± SE) were kept in 3 replicate tanks and subjected to 3 changes in temperature: 16 to 20°C, 20 to 16°C and 16 to 12°C. At each temperature, fish were left to acclimatize for 8 to 10 d, before daily feed intake (DFI), the routine oxygen consumption rate (routine MO2, mg kg−1 min−1) and the LOS were measured. In addition, at 20°C the swimming speed was measured in fish subjected to a decline in O2 from full air saturation to levels below the LOS (minimum of 8−10% O2). For the temperature range tested (12−20°C), DFI, MO2 and LOS increased exponentially with temperature (7.5-, 3.6- and 2.2-fold, respectively) with mean (± SE) LOS being 17 ± 1, 21 ± 0 and 35 ± 5% O2 at 12, 16 and 20°C, respectively. A gradual decline in swimming activity was observed as O2 declined below the LOS, indicating increasing metabolic stress and/or a ‘sit-out’ coping strategy which may prolong survival time in severe hypoxia. The results show the importance of temperature as an influential variable over the environmental O2 requirements of S. aurata.nb_NO
dc.language.isoengnb_NO
dc.publisherInter Researchnb_NO
dc.titleEffect of temperature on the metabolism, behaviourand oxygen requirements of Sparus auratanb_NO
dc.typeJournal articlenb_NO
dc.typePeer revieweden_GB
dc.date.updated2015-09-07T09:13:17Z
dc.source.pagenumber115-123nb_NO
dc.source.volume7nb_NO
dc.source.journalAquaculture Environment Interactionsnb_NO
dc.source.issue2nb_NO
dc.identifier.doi10.3354/aei00141
dc.identifier.cristin1261951
dc.description.localcode© The authors 2015. Open Access under Creative Commons by Attribution Licence. Use, distribution and reproduction are un restricted. Authors and original publication must be credited.nb_NO


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