Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/28655
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dc.contributor.authorGomez Isaza, Daniel Fen_UK
dc.contributor.authorCramp, Rebecca Len_UK
dc.contributor.authorSmullen, Richarden_UK
dc.contributor.authorGlencross, Brett Den_UK
dc.contributor.authorFranklin, Craig Een_UK
dc.date.accessioned2019-01-30T15:40:21Z-
dc.date.available2019-01-30T15:40:21Z-
dc.date.issued2019-04-30en_UK
dc.identifier.urihttp://hdl.handle.net/1893/28655-
dc.description.abstractAquatic organisms, including important cultured species, are forced to contend with acute changes in water temperature as the frequency and intensity of extreme weather events worsen. Acute temperature spikes are likely to threaten aquaculture species, but dietary intervention may play an important protective role. Increasing the concentration of macronutrients, for example dietary fat content, may improve the thermal resilience of aquaculture species, however, this remains unexplored. To evaluate this hypothesis, we used two commercially available diets (20% versus 10% crude fat) to examine if dietary fat content improves the growth performance of juvenile barramundi (Lates calcarifer) while increasing their resilience to acute thermal stress. Fish were fed their assigned diets for 28-days before assessing the upper thermal tolerance (CTMAX) and the thermal sensitivity of swimming performance (UCRIT) and metabolism. We found that feeding fish a high fat diet resulted in heavier fish, but did not affect the thermal sensitivity of swimming performance or metabolism over an 18 °C temperature range (from 20 to 38 °C). Thermal tolerance was compromised in fish fed the high fat diet by 0.48 °C, showing significantly lower CTMAX. Together, these results suggest that while a high fat diet increases juvenile L. calcarifer growth, it does not benefit physiological performance across a range of relevant water temperatures and may even reduce fish tolerance of extreme water temperatures. These data may have implications for aquaculture production in a warming world, where episodic extremes of temperature are likely to become more frequent.en_UK
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.relationGomez Isaza DF, Cramp RL, Smullen R, Glencross BD & Franklin CE (2019) Coping with climatic extremes: Dietary fat content decreased the thermal resilience of barramundi (Lates calcarifer). Comparative Biochemistry and Physiology. Part A, Molecular and Integrative Physiology, 230, pp. 64-70. https://doi.org/10.1016/j.cbpa.2019.01.004en_UK
dc.rightsThis item has been embargoed for a period. During the embargo please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. Accepted refereed manuscript of: Gomez Isaza DF, Cramp RL, Smullen R, Glencross BD & Franklin CE (2019) Coping with climatic extremes: Dietary fat content decreased the thermal resilience of barramundi (Lates calcarifer). Comparative Biochemistry and Physiology. Part A, Molecular and Integrative Physiology, 230, pp. 64-70. DOI: https://doi.org/10.1016/j.cbpa.2019.01.004 © 2019, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/en_UK
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en_UK
dc.subjectTemperature stressen_UK
dc.subjectCTmaxen_UK
dc.subjectSwimming performanceen_UK
dc.subjectOxygen consumptionen_UK
dc.subjectAsian sea bassen_UK
dc.titleCoping with climatic extremes: Dietary fat content decreased the thermal resilience of barramundi (Lates calcarifer)en_UK
dc.typeJournal Articleen_UK
dc.rights.embargodate2020-01-18en_UK
dc.rights.embargoreason[Gomez Isaza et al_CBP - Accepted Version.pdf] Publisher requires embargo of 12 months after formal publication.en_UK
dc.identifier.doi10.1016/j.cbpa.2019.01.004en_UK
dc.identifier.pmid30659952en_UK
dc.citation.jtitleComparative Biochemistry and Physiology - Part A: Molecular and Integrative Physiologyen_UK
dc.citation.issn1095-6433en_UK
dc.citation.volume230en_UK
dc.citation.spage64en_UK
dc.citation.epage70en_UK
dc.citation.publicationstatusPublisheden_UK
dc.citation.peerreviewedRefereeden_UK
dc.type.statusAM - Accepted Manuscripten_UK
dc.author.emailb.d.glencross@stir.ac.uken_UK
dc.citation.date17/01/2019en_UK
dc.contributor.affiliationUniversity of Queenslanden_UK
dc.contributor.affiliationUniversity of Queenslanden_UK
dc.contributor.affiliationRidley Aqua-Feed Pty Ltden_UK
dc.contributor.affiliationInstitute of Aquacultureen_UK
dc.contributor.affiliationUniversity of Queenslanden_UK
dc.identifier.scopusid2-s2.0-85060223164en_UK
dc.identifier.wtid1101049en_UK
dc.contributor.orcid0000-0003-1167-8530en_UK
dc.date.accepted2019-01-06en_UK
dc.date.filedepositdate2019-01-30en_UK
Appears in Collections:Aquaculture Journal Articles

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