Combined effect of pCO2 and temperature levels on the thermal niche in the early benthic ontogeny of a keystone species
We evaluated the effects of projected, near future ocean acidification (OA) and extreme events of temperature (warming or cooling) on the thermal tolerance of Concholepas concholepas, a coastal benthic keystone species. Three separate trials of an experiment were conducted by exposing juvenile C. co...
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ftconicet:oai:ri.conicet.gov.ar:11336/141124 2023-10-09T21:54:58+02:00 Combined effect of pCO2 and temperature levels on the thermal niche in the early benthic ontogeny of a keystone species Manríquez, Patricio H. Jara, María Elisa González, Claudio P. Díaz, María Isabel Brokordt, Katherina Lattuca, María Eugenia Peck, Myron A. Alter, Katharina Marras, Stefano Domenici, Paolo application/pdf http://hdl.handle.net/11336/141124 eng eng Elsevier info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S004896972030749X info:eu-repo/semantics/altIdentifier/doi/10.1016/j.scitotenv.2020.137239 http://hdl.handle.net/11336/141124 Manríquez, Patricio H.; Jara, María Elisa; González, Claudio P.; Díaz, María Isabel; Brokordt, Katherina; et al.; Combined effect of pCO2 and temperature levels on the thermal niche in the early benthic ontogeny of a keystone species; Elsevier; Science of the Total Environment; 719; 6-2020; 1-15 0048-9697 CONICET Digital CONICET info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ THERMAL TOLERANCE CRITICAL THERMAL MINIMUM CRITICAL THERMAL MAXIMUM HSP70 METABOLISM GLOBAL CLIMATE CHANGE CONCHOLEPAS CONCHOLEPAS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1016/j.scitotenv.2020.137239 2023-09-24T20:09:56Z We evaluated the effects of projected, near future ocean acidification (OA) and extreme events of temperature (warming or cooling) on the thermal tolerance of Concholepas concholepas, a coastal benthic keystone species. Three separate trials of an experiment were conducted by exposing juvenile C. concholepas for 1 month to one of two contrasting pCO2 levels (~500 and ~1200 μatm). In addition, each pCO2 level was combined with one of four temperature treatments. The control was 15 °C, whilst the other temperatures were 10 °C (Trial 1), 20 °C (Trial 2) and 25 °C (Trial 3). At the end of each trial, we assessed Critical Thermal maximum (CTmax) and minimum (CTmin) via self-righting success, calculated partial thermal tolerance polygons, measured somatic growth, determined transcription of Heat Shock Proteins 70 (HSP70) and measured oxygen consumption rates. Regardless of pCO2 level, HSP70 transcript levels were significantly higher in juveniles after exposure to extreme temperatures (10 °C and 25 °C) indicating physiological stress. Oxygen consumption rates increased with increasing temperature from 10 °C to 20 °C though showed a decrease at 25 °C. This rate was not affected by pCO2 or the interaction between temperature and pCO2. Juveniles exposed to present-day and near future pCO2 levels at 20 °C showed similar thermal tolerance polygonal areas; whilst changes in both CTmin and CTmax at 25 °C and 10 °C caused narrower and broader areas, respectively. Temperature affected growth, oxygen consumption and HSP70 transcription in small juvenile C. concholepas. Exposure to elevated pCO2 did not affect thermal tolerance, growth or oxygen consumption at temperatures within the thermal range normally experienced by this species in northern Chile (15-20 °C). At elevated pCO2 conditions, however, exposure to warmer (25 °C) or colder (10 °C) temperatures reduced or increased the thermal area, respectively. This study demonstrates the importance of examining the thermal-tolerance edges to better understand how OA and ... Article in Journal/Newspaper Ocean acidification CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Science of The Total Environment 719 137239 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
THERMAL TOLERANCE CRITICAL THERMAL MINIMUM CRITICAL THERMAL MAXIMUM HSP70 METABOLISM GLOBAL CLIMATE CHANGE CONCHOLEPAS CONCHOLEPAS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
THERMAL TOLERANCE CRITICAL THERMAL MINIMUM CRITICAL THERMAL MAXIMUM HSP70 METABOLISM GLOBAL CLIMATE CHANGE CONCHOLEPAS CONCHOLEPAS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Manríquez, Patricio H. Jara, María Elisa González, Claudio P. Díaz, María Isabel Brokordt, Katherina Lattuca, María Eugenia Peck, Myron A. Alter, Katharina Marras, Stefano Domenici, Paolo Combined effect of pCO2 and temperature levels on the thermal niche in the early benthic ontogeny of a keystone species |
topic_facet |
THERMAL TOLERANCE CRITICAL THERMAL MINIMUM CRITICAL THERMAL MAXIMUM HSP70 METABOLISM GLOBAL CLIMATE CHANGE CONCHOLEPAS CONCHOLEPAS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
We evaluated the effects of projected, near future ocean acidification (OA) and extreme events of temperature (warming or cooling) on the thermal tolerance of Concholepas concholepas, a coastal benthic keystone species. Three separate trials of an experiment were conducted by exposing juvenile C. concholepas for 1 month to one of two contrasting pCO2 levels (~500 and ~1200 μatm). In addition, each pCO2 level was combined with one of four temperature treatments. The control was 15 °C, whilst the other temperatures were 10 °C (Trial 1), 20 °C (Trial 2) and 25 °C (Trial 3). At the end of each trial, we assessed Critical Thermal maximum (CTmax) and minimum (CTmin) via self-righting success, calculated partial thermal tolerance polygons, measured somatic growth, determined transcription of Heat Shock Proteins 70 (HSP70) and measured oxygen consumption rates. Regardless of pCO2 level, HSP70 transcript levels were significantly higher in juveniles after exposure to extreme temperatures (10 °C and 25 °C) indicating physiological stress. Oxygen consumption rates increased with increasing temperature from 10 °C to 20 °C though showed a decrease at 25 °C. This rate was not affected by pCO2 or the interaction between temperature and pCO2. Juveniles exposed to present-day and near future pCO2 levels at 20 °C showed similar thermal tolerance polygonal areas; whilst changes in both CTmin and CTmax at 25 °C and 10 °C caused narrower and broader areas, respectively. Temperature affected growth, oxygen consumption and HSP70 transcription in small juvenile C. concholepas. Exposure to elevated pCO2 did not affect thermal tolerance, growth or oxygen consumption at temperatures within the thermal range normally experienced by this species in northern Chile (15-20 °C). At elevated pCO2 conditions, however, exposure to warmer (25 °C) or colder (10 °C) temperatures reduced or increased the thermal area, respectively. This study demonstrates the importance of examining the thermal-tolerance edges to better understand how OA and ... |
format |
Article in Journal/Newspaper |
author |
Manríquez, Patricio H. Jara, María Elisa González, Claudio P. Díaz, María Isabel Brokordt, Katherina Lattuca, María Eugenia Peck, Myron A. Alter, Katharina Marras, Stefano Domenici, Paolo |
author_facet |
Manríquez, Patricio H. Jara, María Elisa González, Claudio P. Díaz, María Isabel Brokordt, Katherina Lattuca, María Eugenia Peck, Myron A. Alter, Katharina Marras, Stefano Domenici, Paolo |
author_sort |
Manríquez, Patricio H. |
title |
Combined effect of pCO2 and temperature levels on the thermal niche in the early benthic ontogeny of a keystone species |
title_short |
Combined effect of pCO2 and temperature levels on the thermal niche in the early benthic ontogeny of a keystone species |
title_full |
Combined effect of pCO2 and temperature levels on the thermal niche in the early benthic ontogeny of a keystone species |
title_fullStr |
Combined effect of pCO2 and temperature levels on the thermal niche in the early benthic ontogeny of a keystone species |
title_full_unstemmed |
Combined effect of pCO2 and temperature levels on the thermal niche in the early benthic ontogeny of a keystone species |
title_sort |
combined effect of pco2 and temperature levels on the thermal niche in the early benthic ontogeny of a keystone species |
publisher |
Elsevier |
url |
http://hdl.handle.net/11336/141124 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S004896972030749X info:eu-repo/semantics/altIdentifier/doi/10.1016/j.scitotenv.2020.137239 http://hdl.handle.net/11336/141124 Manríquez, Patricio H.; Jara, María Elisa; González, Claudio P.; Díaz, María Isabel; Brokordt, Katherina; et al.; Combined effect of pCO2 and temperature levels on the thermal niche in the early benthic ontogeny of a keystone species; Elsevier; Science of the Total Environment; 719; 6-2020; 1-15 0048-9697 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1016/j.scitotenv.2020.137239 |
container_title |
Science of The Total Environment |
container_volume |
719 |
container_start_page |
137239 |
_version_ |
1779318735371239424 |