Effect of temperature on the metabolism, behaviourand oxygen requirements of Sparus aurata
dc.contributor.author | Remen, Mette | |
dc.contributor.author | Olsen, Rolf Erik | |
dc.contributor.author | Oppedal, Frode | |
dc.contributor.author | Thorsheim, Grethe Beate | |
dc.contributor.author | Folkedal, Ole | |
dc.contributor.author | Sitjà-Bobadilla, Ariadna | |
dc.contributor.author | Pérez-Sánchez, Jaume | |
dc.contributor.author | Nederlof, Marit A. J. | |
dc.date.accessioned | 2015-09-07T09:13:17Z | |
dc.date.accessioned | 2015-09-11T09:13:18Z | |
dc.date.available | 2015-09-07T09:13:17Z | |
dc.date.available | 2015-09-11T09:13:18Z | |
dc.date.issued | 2015 | |
dc.identifier.citation | Aquaculture Environment Interactions 2015, 7(2):115-123 | nb_NO |
dc.identifier.issn | 1869-7534 | |
dc.identifier.uri | http://hdl.handle.net/11250/299508 | |
dc.description.abstract | We 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.iso | eng | nb_NO |
dc.publisher | Inter Research | nb_NO |
dc.title | Effect of temperature on the metabolism, behaviourand oxygen requirements of Sparus aurata | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | en_GB |
dc.date.updated | 2015-09-07T09:13:17Z | |
dc.source.pagenumber | 115-123 | nb_NO |
dc.source.volume | 7 | nb_NO |
dc.source.journal | Aquaculture Environment Interactions | nb_NO |
dc.source.issue | 2 | nb_NO |
dc.identifier.doi | 10.3354/aei00141 | |
dc.identifier.cristin | 1261951 | |
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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