Mitochondrial acclimation potential to ocean acidification and warming of Polar cod (Boreogadus saida) and Atlantic cod (Gadus morhua)
Background: Ocean acidification and warming are happening fast in the Arctic but little is known about the effects of ocean acidification and warming on the physiological performance and survival of Arctic fish. Results: In this study we investigated the metabolic background of performance through a...
Published in: | Frontiers in Zoology |
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BIOMED CENTRAL LTD
2017
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Online Access: | https://epic.awi.de/id/eprint/44693/ https://epic.awi.de/id/eprint/44693/1/Leo_etal_2017.pdf https://hdl.handle.net/10013/epic.50964 https://hdl.handle.net/10013/epic.50964.d001 |
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ftawi:oai:epic.awi.de:44693 2023-05-15T14:51:54+02:00 Mitochondrial acclimation potential to ocean acidification and warming of Polar cod (Boreogadus saida) and Atlantic cod (Gadus morhua) Leo, Elettra Kunz, Kristina Schmidt, Matthias Storch, Daniela Pörtner, Hans-Otto Mark, Felix Christopher 2017-04-14 application/pdf https://epic.awi.de/id/eprint/44693/ https://epic.awi.de/id/eprint/44693/1/Leo_etal_2017.pdf https://hdl.handle.net/10013/epic.50964 https://hdl.handle.net/10013/epic.50964.d001 unknown BIOMED CENTRAL LTD https://epic.awi.de/id/eprint/44693/1/Leo_etal_2017.pdf https://hdl.handle.net/10013/epic.50964.d001 Leo, E. , Kunz, K. orcid:0000-0002-5524-0103 , Schmidt, M. , Storch, D. orcid:0000-0003-3090-7554 , Pörtner, H. O. orcid:0000-0001-6535-6575 and Mark, F. C. orcid:0000-0002-5586-6704 (2017) Mitochondrial acclimation potential to ocean acidification and warming of Polar cod (Boreogadus saida) and Atlantic cod (Gadus morhua) , Frontiers in Zoology, pp. 1-12 . doi:10.1186/s12983-017-0205-1 <https://doi.org/10.1186/s12983-017-0205-1> , hdl:10013/epic.50964 EPIC3Frontiers in Zoology, BIOMED CENTRAL LTD, pp. 1-12, ISSN: 1742-9994 Article isiRev 2017 ftawi https://doi.org/10.1186/s12983-017-0205-1 2021-12-24T15:42:58Z Background: Ocean acidification and warming are happening fast in the Arctic but little is known about the effects of ocean acidification and warming on the physiological performance and survival of Arctic fish. Results: In this study we investigated the metabolic background of performance through analyses of cardiac mitochondrial function in response to control and elevated water temperatures and PCO2 of two gadoid fish species, Polar cod (Boreogadus saida), an endemic Arctic species, and Atlantic cod (Gadus morhua), which is a temperate to cold eurytherm and currently expanding into Arctic waters in the wake of ocean warming. We studied their responses to the above-mentioned drivers and their acclimation potential through analysing the cardiac mitochondrial function in permeabilised cardiac muscle fibres after 4 months of incubation at different temperatures (Polar cod: 0, 3, 6, 8 °C and Atlantic cod: 3, 8, 12, 16 °C), combined with exposure to present (400μatm) and year 2100 (1170μatm) levels of CO2. OXPHOS, proton leak and ATP production efficiency in Polar cod were similar in the groups acclimated at 400μatm and 1170μatm of CO2, while incubation at 8 °C evoked increased proton leak resulting in decreased ATP production efficiency and decreased Complex IV capacity. In contrast, OXPHOS of Atlantic cod increased with temperature without compromising the ATP production efficiency, whereas the combination of high temperature and high PCO2 depressed OXPHOS and ATP production efficiency. Conclusions: Polar cod mitochondrial efficiency decreased at 8 °C while Atlantic cod mitochondria were more resilient to elevated temperature; however, this resilience was constrained by high PCO2. In line with its lower habitat temperature and higher degree of stenothermy, Polar cod has a lower acclimation potential to warming than Atlantic cod. Article in Journal/Newspaper Arctic atlantic cod Boreogadus saida Gadus morhua Ocean acidification polar cod Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Frontiers in Zoology 14 1 |
institution |
Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Background: Ocean acidification and warming are happening fast in the Arctic but little is known about the effects of ocean acidification and warming on the physiological performance and survival of Arctic fish. Results: In this study we investigated the metabolic background of performance through analyses of cardiac mitochondrial function in response to control and elevated water temperatures and PCO2 of two gadoid fish species, Polar cod (Boreogadus saida), an endemic Arctic species, and Atlantic cod (Gadus morhua), which is a temperate to cold eurytherm and currently expanding into Arctic waters in the wake of ocean warming. We studied their responses to the above-mentioned drivers and their acclimation potential through analysing the cardiac mitochondrial function in permeabilised cardiac muscle fibres after 4 months of incubation at different temperatures (Polar cod: 0, 3, 6, 8 °C and Atlantic cod: 3, 8, 12, 16 °C), combined with exposure to present (400μatm) and year 2100 (1170μatm) levels of CO2. OXPHOS, proton leak and ATP production efficiency in Polar cod were similar in the groups acclimated at 400μatm and 1170μatm of CO2, while incubation at 8 °C evoked increased proton leak resulting in decreased ATP production efficiency and decreased Complex IV capacity. In contrast, OXPHOS of Atlantic cod increased with temperature without compromising the ATP production efficiency, whereas the combination of high temperature and high PCO2 depressed OXPHOS and ATP production efficiency. Conclusions: Polar cod mitochondrial efficiency decreased at 8 °C while Atlantic cod mitochondria were more resilient to elevated temperature; however, this resilience was constrained by high PCO2. In line with its lower habitat temperature and higher degree of stenothermy, Polar cod has a lower acclimation potential to warming than Atlantic cod. |
format |
Article in Journal/Newspaper |
author |
Leo, Elettra Kunz, Kristina Schmidt, Matthias Storch, Daniela Pörtner, Hans-Otto Mark, Felix Christopher |
spellingShingle |
Leo, Elettra Kunz, Kristina Schmidt, Matthias Storch, Daniela Pörtner, Hans-Otto Mark, Felix Christopher Mitochondrial acclimation potential to ocean acidification and warming of Polar cod (Boreogadus saida) and Atlantic cod (Gadus morhua) |
author_facet |
Leo, Elettra Kunz, Kristina Schmidt, Matthias Storch, Daniela Pörtner, Hans-Otto Mark, Felix Christopher |
author_sort |
Leo, Elettra |
title |
Mitochondrial acclimation potential to ocean acidification and warming of Polar cod (Boreogadus saida) and Atlantic cod (Gadus morhua) |
title_short |
Mitochondrial acclimation potential to ocean acidification and warming of Polar cod (Boreogadus saida) and Atlantic cod (Gadus morhua) |
title_full |
Mitochondrial acclimation potential to ocean acidification and warming of Polar cod (Boreogadus saida) and Atlantic cod (Gadus morhua) |
title_fullStr |
Mitochondrial acclimation potential to ocean acidification and warming of Polar cod (Boreogadus saida) and Atlantic cod (Gadus morhua) |
title_full_unstemmed |
Mitochondrial acclimation potential to ocean acidification and warming of Polar cod (Boreogadus saida) and Atlantic cod (Gadus morhua) |
title_sort |
mitochondrial acclimation potential to ocean acidification and warming of polar cod (boreogadus saida) and atlantic cod (gadus morhua) |
publisher |
BIOMED CENTRAL LTD |
publishDate |
2017 |
url |
https://epic.awi.de/id/eprint/44693/ https://epic.awi.de/id/eprint/44693/1/Leo_etal_2017.pdf https://hdl.handle.net/10013/epic.50964 https://hdl.handle.net/10013/epic.50964.d001 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic atlantic cod Boreogadus saida Gadus morhua Ocean acidification polar cod |
genre_facet |
Arctic atlantic cod Boreogadus saida Gadus morhua Ocean acidification polar cod |
op_source |
EPIC3Frontiers in Zoology, BIOMED CENTRAL LTD, pp. 1-12, ISSN: 1742-9994 |
op_relation |
https://epic.awi.de/id/eprint/44693/1/Leo_etal_2017.pdf https://hdl.handle.net/10013/epic.50964.d001 Leo, E. , Kunz, K. orcid:0000-0002-5524-0103 , Schmidt, M. , Storch, D. orcid:0000-0003-3090-7554 , Pörtner, H. O. orcid:0000-0001-6535-6575 and Mark, F. C. orcid:0000-0002-5586-6704 (2017) Mitochondrial acclimation potential to ocean acidification and warming of Polar cod (Boreogadus saida) and Atlantic cod (Gadus morhua) , Frontiers in Zoology, pp. 1-12 . doi:10.1186/s12983-017-0205-1 <https://doi.org/10.1186/s12983-017-0205-1> , hdl:10013/epic.50964 |
op_doi |
https://doi.org/10.1186/s12983-017-0205-1 |
container_title |
Frontiers in Zoology |
container_volume |
14 |
container_issue |
1 |
_version_ |
1766323041785085952 |