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Article: Increased Thermal Sensitivity of a Tropical Marine Gastropod Under Combined CO2 and Temperature Stress

TitleIncreased Thermal Sensitivity of a Tropical Marine Gastropod Under Combined CO2 and Temperature Stress
Authors
Keywordsthermal physiology
ocean warming
ocean acidification
metabolic function
physiological plasticity
Issue Date2021
PublisherFrontiers Research Foundation. The Journal's web site is located at http://www.frontiersin.org/Marine_Science
Citation
Frontiers in Marine Science, 2021, v. 8, p. article no. 643377 How to Cite?
AbstractThe ability of an organism to alter its physiology in response to environmental conditions offers a short-term defense mechanism in the face of weather extremes resulting from climate change. These often manifest as multiple, interacting drivers, especially pH and temperature. In particular, decreased pH can impose constraints on the biological mechanisms which define thermal limits by throwing off energetic equilibrium and diminishing physiological functions (e.g., in many marine ectotherms). For many species, however, we do not have a detailed understanding of these interactive effects, especially on short-term acclimation responses. Here, we investigated the metabolic plasticity of a tropical subtidal gastropod (Trochus maculatus) to increased levels of CO2 (700 ppm) and heating (+3°C), measuring metabolic performance (Q10 coefficient) and thermal sensitivity [temperature of maximum metabolic rate (TMMR), and upper lethal temperature (ULT)]. Individuals demonstrated metabolic acclimation in response to the stressors, with TMMR increasing by +4.1°C under higher temperatures, +2.7°C under elevated CO2, and +4.4°C under the combined stressors. In contrast, the ULT only increased marginally in response to heating (+0.3°C), but decreased by −2.3°C under CO2, and −8.7°C under combined stressors. Therefore, although phenotypic plasticity is evident with metabolic acclimation, acute lethal temperature limits seem to be less flexible during short-term acclimation.
Persistent Identifierhttp://hdl.handle.net/10722/304399
ISSN
2023 Impact Factor: 2.8
2023 SCImago Journal Rankings: 0.907
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorMinuti, JJ-
dc.contributor.authorCorra, CA-
dc.contributor.authorHelmuth, BS-
dc.contributor.authorRussell, BD-
dc.date.accessioned2021-09-23T08:59:29Z-
dc.date.available2021-09-23T08:59:29Z-
dc.date.issued2021-
dc.identifier.citationFrontiers in Marine Science, 2021, v. 8, p. article no. 643377-
dc.identifier.issn2296-7745-
dc.identifier.urihttp://hdl.handle.net/10722/304399-
dc.description.abstractThe ability of an organism to alter its physiology in response to environmental conditions offers a short-term defense mechanism in the face of weather extremes resulting from climate change. These often manifest as multiple, interacting drivers, especially pH and temperature. In particular, decreased pH can impose constraints on the biological mechanisms which define thermal limits by throwing off energetic equilibrium and diminishing physiological functions (e.g., in many marine ectotherms). For many species, however, we do not have a detailed understanding of these interactive effects, especially on short-term acclimation responses. Here, we investigated the metabolic plasticity of a tropical subtidal gastropod (Trochus maculatus) to increased levels of CO2 (700 ppm) and heating (+3°C), measuring metabolic performance (Q10 coefficient) and thermal sensitivity [temperature of maximum metabolic rate (TMMR), and upper lethal temperature (ULT)]. Individuals demonstrated metabolic acclimation in response to the stressors, with TMMR increasing by +4.1°C under higher temperatures, +2.7°C under elevated CO2, and +4.4°C under the combined stressors. In contrast, the ULT only increased marginally in response to heating (+0.3°C), but decreased by −2.3°C under CO2, and −8.7°C under combined stressors. Therefore, although phenotypic plasticity is evident with metabolic acclimation, acute lethal temperature limits seem to be less flexible during short-term acclimation.-
dc.languageeng-
dc.publisherFrontiers Research Foundation. The Journal's web site is located at http://www.frontiersin.org/Marine_Science-
dc.relation.ispartofFrontiers in Marine Science-
dc.rightsThis Document is Protected by copyright and was first published by Frontiers. All rights reserved. It is reproduced with permission.-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectthermal physiology-
dc.subjectocean warming-
dc.subjectocean acidification-
dc.subjectmetabolic function-
dc.subjectphysiological plasticity-
dc.titleIncreased Thermal Sensitivity of a Tropical Marine Gastropod Under Combined CO2 and Temperature Stress-
dc.typeArticle-
dc.identifier.emailMinuti, JJ: jjminuti@hku.hk-
dc.identifier.emailRussell, BD: brussell@hku.hk-
dc.identifier.authorityRussell, BD=rp02053-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.3389/fmars.2021.643377-
dc.identifier.scopuseid_2-s2.0-85103577500-
dc.identifier.hkuros325680-
dc.identifier.volume8-
dc.identifier.spagearticle no. 643377-
dc.identifier.epagearticle no. 643377-
dc.identifier.isiWOS:000635471700001-
dc.publisher.placeSwitzerland-

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