Experiment: Metabolic shifts in the Antarctic fish Notothenia rossii in response to rising temperature and PCO2
Introduction Ongoing ocean warming and acidification increasingly affect marine ecosystems, in particular around the Antarctic Peninsula. Yet little is known about the capability of Antarctic notothenioid fish to cope with rising temperature in acidifying seawater. While the whole animal level is ex...
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Language: | English |
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PANGAEA
2014
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.829830 https://doi.org/10.1594/PANGAEA.829830 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.829830 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Carbon dioxide Carlini/Jubany Station Condition factor Gender Haematocrit Hepatosomatic index Jubany_Dallmann Lactate Length standard total MULT Multiple investigations Osmotic concentration pH extracellular intracellular PotterCove Potter Cove King George Island Antarctic Peninsula Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas Respiration rate oxygen Species SPP1158 Treatment: temperature Wet mass |
spellingShingle |
Carbon dioxide Carlini/Jubany Station Condition factor Gender Haematocrit Hepatosomatic index Jubany_Dallmann Lactate Length standard total MULT Multiple investigations Osmotic concentration pH extracellular intracellular PotterCove Potter Cove King George Island Antarctic Peninsula Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas Respiration rate oxygen Species SPP1158 Treatment: temperature Wet mass Strobel, Anneli Bennecke, Swaantje Leo, Elettra Mintenbeck, Katja Pörtner, Hans-Otto Mark, Felix Christopher Experiment: Metabolic shifts in the Antarctic fish Notothenia rossii in response to rising temperature and PCO2 |
topic_facet |
Carbon dioxide Carlini/Jubany Station Condition factor Gender Haematocrit Hepatosomatic index Jubany_Dallmann Lactate Length standard total MULT Multiple investigations Osmotic concentration pH extracellular intracellular PotterCove Potter Cove King George Island Antarctic Peninsula Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas Respiration rate oxygen Species SPP1158 Treatment: temperature Wet mass |
description |
Introduction Ongoing ocean warming and acidification increasingly affect marine ecosystems, in particular around the Antarctic Peninsula. Yet little is known about the capability of Antarctic notothenioid fish to cope with rising temperature in acidifying seawater. While the whole animal level is expected to be more sensitive towards hypercapnia and temperature, the basis of thermal tolerance is set at the cellular level, with a putative key role for mitochondria. This study therefore investigates the physiological responses of the Antarctic Notothenia rossii after long-term acclimation to increased temperatures (7°C) and elevated PCO2 (0.2 kPa CO2) at different levels of physiological organisation. Results For an integrated picture, we analysed the acclimation capacities of N. rossii by measuring routine metabolic rate (RMR), mitochondrial capacities (state III respiration) as well as intra- and extracellular acid-base status during acute thermal challenges and after long-term acclimation to changing temperature and hypercapnia. RMR was partially compensated during warm- acclimation (decreased below the rate observed after acute warming), while elevated PCO2 had no effect on cold or warm acclimated RMR. Mitochondrial state III respiration was unaffected by temperature acclimation but depressed in cold and warm hypercapnia-acclimated fish. In both cold- and warm-exposed N. rossii, hypercapnia acclimation resulted in a shift of extracellular pH (pHe) towards more alkaline values. A similar overcompensation was visible in muscle intracellular pH (pHi). pHi in liver displayed a slight acidosis after warm normo- or hypercapnia acclimation, nevertheless, long-term exposure to higher PCO2 was compensated for by intracellular bicarbonate accumulation. Conclusion The partial warm compensation in whole animal metabolic rate indicates beginning limitations in tissue oxygen supply after warm-acclimation of N. rossii. Compensatory mechanisms of the reduced mitochondrial capacities under chronic hypercapnia may include a new ... |
format |
Dataset |
author |
Strobel, Anneli Bennecke, Swaantje Leo, Elettra Mintenbeck, Katja Pörtner, Hans-Otto Mark, Felix Christopher |
author_facet |
Strobel, Anneli Bennecke, Swaantje Leo, Elettra Mintenbeck, Katja Pörtner, Hans-Otto Mark, Felix Christopher |
author_sort |
Strobel, Anneli |
title |
Experiment: Metabolic shifts in the Antarctic fish Notothenia rossii in response to rising temperature and PCO2 |
title_short |
Experiment: Metabolic shifts in the Antarctic fish Notothenia rossii in response to rising temperature and PCO2 |
title_full |
Experiment: Metabolic shifts in the Antarctic fish Notothenia rossii in response to rising temperature and PCO2 |
title_fullStr |
Experiment: Metabolic shifts in the Antarctic fish Notothenia rossii in response to rising temperature and PCO2 |
title_full_unstemmed |
Experiment: Metabolic shifts in the Antarctic fish Notothenia rossii in response to rising temperature and PCO2 |
title_sort |
experiment: metabolic shifts in the antarctic fish notothenia rossii in response to rising temperature and pco2 |
publisher |
PANGAEA |
publishDate |
2014 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.829830 https://doi.org/10.1594/PANGAEA.829830 |
op_coverage |
LATITUDE: -62.233330 * LONGITUDE: -58.666660 * MINIMUM ELEVATION: -35.0 m * MAXIMUM ELEVATION: -35.0 m |
long_lat |
ENVELOPE(-58.666660,-58.666660,-62.233330,-62.233330) |
geographic |
Arctic Antarctic The Antarctic Antarctic Peninsula King George Island Potter Cove |
geographic_facet |
Arctic Antarctic The Antarctic Antarctic Peninsula King George Island Potter Cove |
genre |
Antarc* Antarctic Antarctic Peninsula Arctic King George Island Notothenia rossii Sea ice |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Arctic King George Island Notothenia rossii Sea ice |
op_source |
Supplement to: Strobel, Anneli; Bennecke, Swaantje; Leo, Elettra; Mintenbeck, Katja; Pörtner, Hans-Otto; Mark, Felix Christopher (2012): Metabolic shifts in the Antarctic fish Notothenia rossii in response to rising temperature and PCO2. Frontiers in Zoology, 9(1), 28, https://doi.org/10.1186/1742-9994-9-28 |
op_relation |
Strobel, Anneli; Bennecke, Swaantje; Leo, Elettra; Helvey, J D; Pörtner, Hans-Otto; Mark, Felix Christopher (2012): Seawater carbonate chemistry, respiration, routine metabolic rate, extracellular pH, intracellular pH of the Antarctic fish Notothenia rossii in a laboratory experiment. PANGAEA, https://doi.org/10.1594/PANGAEA.831181 https://doi.pangaea.de/10.1594/PANGAEA.829830 https://doi.org/10.1594/PANGAEA.829830 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.829830 https://doi.org/10.1186/1742-9994-9-28 https://doi.org/10.1594/PANGAEA.831181 |
_version_ |
1766252424615428096 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.829830 2023-05-15T13:49:51+02:00 Experiment: Metabolic shifts in the Antarctic fish Notothenia rossii in response to rising temperature and PCO2 Strobel, Anneli Bennecke, Swaantje Leo, Elettra Mintenbeck, Katja Pörtner, Hans-Otto Mark, Felix Christopher LATITUDE: -62.233330 * LONGITUDE: -58.666660 * MINIMUM ELEVATION: -35.0 m * MAXIMUM ELEVATION: -35.0 m 2014-02-24 text/tab-separated-values, 451 data points https://doi.pangaea.de/10.1594/PANGAEA.829830 https://doi.org/10.1594/PANGAEA.829830 en eng PANGAEA Strobel, Anneli; Bennecke, Swaantje; Leo, Elettra; Helvey, J D; Pörtner, Hans-Otto; Mark, Felix Christopher (2012): Seawater carbonate chemistry, respiration, routine metabolic rate, extracellular pH, intracellular pH of the Antarctic fish Notothenia rossii in a laboratory experiment. PANGAEA, https://doi.org/10.1594/PANGAEA.831181 https://doi.pangaea.de/10.1594/PANGAEA.829830 https://doi.org/10.1594/PANGAEA.829830 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Strobel, Anneli; Bennecke, Swaantje; Leo, Elettra; Mintenbeck, Katja; Pörtner, Hans-Otto; Mark, Felix Christopher (2012): Metabolic shifts in the Antarctic fish Notothenia rossii in response to rising temperature and PCO2. Frontiers in Zoology, 9(1), 28, https://doi.org/10.1186/1742-9994-9-28 Carbon dioxide Carlini/Jubany Station Condition factor Gender Haematocrit Hepatosomatic index Jubany_Dallmann Lactate Length standard total MULT Multiple investigations Osmotic concentration pH extracellular intracellular PotterCove Potter Cove King George Island Antarctic Peninsula Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas Respiration rate oxygen Species SPP1158 Treatment: temperature Wet mass Dataset 2014 ftpangaea https://doi.org/10.1594/PANGAEA.829830 https://doi.org/10.1186/1742-9994-9-28 https://doi.org/10.1594/PANGAEA.831181 2023-01-20T09:03:01Z Introduction Ongoing ocean warming and acidification increasingly affect marine ecosystems, in particular around the Antarctic Peninsula. Yet little is known about the capability of Antarctic notothenioid fish to cope with rising temperature in acidifying seawater. While the whole animal level is expected to be more sensitive towards hypercapnia and temperature, the basis of thermal tolerance is set at the cellular level, with a putative key role for mitochondria. This study therefore investigates the physiological responses of the Antarctic Notothenia rossii after long-term acclimation to increased temperatures (7°C) and elevated PCO2 (0.2 kPa CO2) at different levels of physiological organisation. Results For an integrated picture, we analysed the acclimation capacities of N. rossii by measuring routine metabolic rate (RMR), mitochondrial capacities (state III respiration) as well as intra- and extracellular acid-base status during acute thermal challenges and after long-term acclimation to changing temperature and hypercapnia. RMR was partially compensated during warm- acclimation (decreased below the rate observed after acute warming), while elevated PCO2 had no effect on cold or warm acclimated RMR. Mitochondrial state III respiration was unaffected by temperature acclimation but depressed in cold and warm hypercapnia-acclimated fish. In both cold- and warm-exposed N. rossii, hypercapnia acclimation resulted in a shift of extracellular pH (pHe) towards more alkaline values. A similar overcompensation was visible in muscle intracellular pH (pHi). pHi in liver displayed a slight acidosis after warm normo- or hypercapnia acclimation, nevertheless, long-term exposure to higher PCO2 was compensated for by intracellular bicarbonate accumulation. Conclusion The partial warm compensation in whole animal metabolic rate indicates beginning limitations in tissue oxygen supply after warm-acclimation of N. rossii. Compensatory mechanisms of the reduced mitochondrial capacities under chronic hypercapnia may include a new ... Dataset Antarc* Antarctic Antarctic Peninsula Arctic King George Island Notothenia rossii Sea ice PANGAEA - Data Publisher for Earth & Environmental Science Arctic Antarctic The Antarctic Antarctic Peninsula King George Island Potter Cove ENVELOPE(-58.666660,-58.666660,-62.233330,-62.233330) |