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dc.contributor.authorBlanco, Edurne
dc.contributor.authorReglero, Patricia
dc.contributor.authorOrtega, Aurelio
dc.contributor.authorFolkvord, Arild
dc.contributor.authorde la Gándara, Fernando
dc.contributor.authorHernández de Rojas, Alma
dc.contributor.authorMoyano, Marta
dc.date.accessioned2021-02-16T09:37:21Z
dc.date.available2021-02-16T09:37:21Z
dc.date.created2020-10-01T00:02:57Z
dc.date.issued2020
dc.identifier.citationJournal of Fish Biology. 2020, 97 (5), 1296-1305.en_US
dc.identifier.issn0022-1112
dc.identifier.urihttps://hdl.handle.net/11250/2728272
dc.description.abstractAtlantic bluefin tuna is an iconic scombrid species with a high commercial and ecological value. Despite their importance, many physiological aspects, especially during the larval stages, are still unknown. Metabolic rates are one of the understudied aspects in scombrid larvae, likely due to challenges associated to larval handling before and during respirometry trials. Gaining reliable estimates of metabolic rates is essential to understand how larvae balance their high growth needs and activity and other physiological functions, which can be very useful for fisheries ecology and aquaculture. This is the first study to (a) estimate the relationship between routine metabolic rate (RMR) and larval dry weight (DW) (mass scaling exponent) at a constant temperature of 26°C, (b) measure the RMR under light and darkness and (c) test whether the interindividual differences in the RMR are related to larval nutritional status (RNA/DNA and DNA/DW). The RMR scaled nearly isometrically with body size (b = 0.99, 0.60–31.56 mg DW) in contrast to the allometric relationship observed in most fish larvae (average b = 0.87). The results show no significant differences in larval RMR under light and darkness, suggesting similar larval activity levels in both conditions. The size explained most of the variability in RMR (97%), and nutritional condition was unrelated to the interindividual differences in routine metabolism. This is the first study to report the metabolic rates of Atlantic bluefin tuna larvae and discuss the challenges of performing bioenergetic studies with early life stages of scombrids.en_US
dc.language.isoengen_US
dc.titleFirst estimates of metabolic rate in Atlantic bluefin tuna larvaeen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionacceptedVersionen_US
dc.source.pagenumber1296-1305en_US
dc.source.volume97en_US
dc.source.journalJournal of Fish Biologyen_US
dc.source.issue5en_US
dc.identifier.doi10.1111/jfb.14473
dc.identifier.cristin1835943
dc.relation.projectEC/H2020/678193en_US
dc.relation.projectEC/H2020/652831en_US
dc.relation.projectEC/H2020/773713en_US
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode1


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