Effect of temperature on the metabolism, behaviour and oxygen requirements of Sparus aurata

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 decl...

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Autores principales:	M Remen, MAJ Nederlof, O Folkedal, G Thorsheim, A Sitjà-Bobadilla, J Pérez-Sánchez, F Oppedal, RE Olsen
Formato:	article
Lenguaje:	EN
Publicado:	Inter-Research 2015
Materias:	Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/beac86c36fcc4d739b5adcf37fd7f8eb
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spelling	oai:doaj.org-article:beac86c36fcc4d739b5adcf37fd7f8eb2021-11-16T09:42:50ZEffect of temperature on the metabolism, behaviour and oxygen requirements of Sparus aurata1869-215X1869-753410.3354/aei00141https://doaj.org/article/beac86c36fcc4d739b5adcf37fd7f8eb2015-09-01T00:00:00Zhttps://www.int-res.com/abstracts/aei/v7/n2/p115-123/https://doaj.org/toc/1869-215Xhttps://doaj.org/toc/1869-7534We 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.M RemenMAJ NederlofO FolkedalG ThorsheimA Sitjà-BobadillaJ Pérez-SánchezF OppedalRE OlsenInter-ResearcharticleAquaculture. Fisheries. AnglingSH1-691EcologyQH540-549.5ENAquaculture Environment Interactions, Vol 7, Iss 2, Pp 115-123 (2015)
institution	DOAJ
collection	DOAJ
language	EN
topic	Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5
spellingShingle	Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5 M Remen MAJ Nederlof O Folkedal G Thorsheim A Sitjà-Bobadilla J Pérez-Sánchez F Oppedal RE Olsen Effect of temperature on the metabolism, behaviour and oxygen requirements of Sparus aurata
description	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.
format	article
author	M Remen MAJ Nederlof O Folkedal G Thorsheim A Sitjà-Bobadilla J Pérez-Sánchez F Oppedal RE Olsen
author_facet	M Remen MAJ Nederlof O Folkedal G Thorsheim A Sitjà-Bobadilla J Pérez-Sánchez F Oppedal RE Olsen
author_sort	M Remen
title	Effect of temperature on the metabolism, behaviour and oxygen requirements of Sparus aurata
title_short	Effect of temperature on the metabolism, behaviour and oxygen requirements of Sparus aurata
title_full	Effect of temperature on the metabolism, behaviour and oxygen requirements of Sparus aurata
title_fullStr	Effect of temperature on the metabolism, behaviour and oxygen requirements of Sparus aurata
title_full_unstemmed	Effect of temperature on the metabolism, behaviour and oxygen requirements of Sparus aurata
title_sort	effect of temperature on the metabolism, behaviour and oxygen requirements of sparus aurata
publisher	Inter-Research
publishDate	2015
url	https://doaj.org/article/beac86c36fcc4d739b5adcf37fd7f8eb
work_keys_str_mv	AT mremen effectoftemperatureonthemetabolismbehaviourandoxygenrequirementsofsparusaurata AT majnederlof effectoftemperatureonthemetabolismbehaviourandoxygenrequirementsofsparusaurata AT ofolkedal effectoftemperatureonthemetabolismbehaviourandoxygenrequirementsofsparusaurata AT gthorsheim effectoftemperatureonthemetabolismbehaviourandoxygenrequirementsofsparusaurata AT asitjabobadilla effectoftemperatureonthemetabolismbehaviourandoxygenrequirementsofsparusaurata AT jperezsanchez effectoftemperatureonthemetabolismbehaviourandoxygenrequirementsofsparusaurata AT foppedal effectoftemperatureonthemetabolismbehaviourandoxygenrequirementsofsparusaurata AT reolsen effectoftemperatureonthemetabolismbehaviourandoxygenrequirementsofsparusaurata
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Effect of temperature on the metabolism, behaviour and oxygen requirements of Sparus aurata

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