Swimming performance in Atlantic Cod (Gadus morhua) following long-term (4-12 months) acclimation to elevated seawater PCO2
Anthropogenic CO2 emissions lead to chronically elevated seawater CO2 partial pressures (hypercapnia). The induced ocean acidification will very likely be a relevant factor shaping future marine environments. CO2 exposure concomitantly challenges the animal's capacity of acid-base and ionic reg...
Published in: | Aquatic Toxicology |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Elsevier
2009
|
Subjects: | |
Online Access: | https://oceanrep.geomar.de/id/eprint/5669/ https://oceanrep.geomar.de/id/eprint/5669/1/564_Melzner_2009_SwimmingPerformanceInAtlanticCod_Artzeit_pubid11778.pdf https://doi.org/10.1016/j.aquatox.2008.12.011 |
id |
ftoceanrep:oai:oceanrep.geomar.de:5669 |
---|---|
record_format |
openpolar |
spelling |
ftoceanrep:oai:oceanrep.geomar.de:5669 2023-05-15T15:27:26+02:00 Swimming performance in Atlantic Cod (Gadus morhua) following long-term (4-12 months) acclimation to elevated seawater PCO2 Melzner, Frank Göbel, Sandra Langenbuch, Martina Gutowska, Magdalena Pörtner, H.O. Lucassen, Magnus 2009 text https://oceanrep.geomar.de/id/eprint/5669/ https://oceanrep.geomar.de/id/eprint/5669/1/564_Melzner_2009_SwimmingPerformanceInAtlanticCod_Artzeit_pubid11778.pdf https://doi.org/10.1016/j.aquatox.2008.12.011 en eng Elsevier https://oceanrep.geomar.de/id/eprint/5669/1/564_Melzner_2009_SwimmingPerformanceInAtlanticCod_Artzeit_pubid11778.pdf Melzner, F. , Göbel, S., Langenbuch, M., Gutowska, M., Pörtner, H. O. and Lucassen, M. (2009) Swimming performance in Atlantic Cod (Gadus morhua) following long-term (4-12 months) acclimation to elevated seawater PCO2. Aquatic Toxicology, 92 . pp. 30-37. DOI 10.1016/j.aquatox.2008.12.011 <https://doi.org/10.1016/j.aquatox.2008.12.011>. doi:10.1016/j.aquatox.2008.12.011 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 2009 ftoceanrep https://doi.org/10.1016/j.aquatox.2008.12.011 2023-04-07T14:51:22Z Anthropogenic CO2 emissions lead to chronically elevated seawater CO2 partial pressures (hypercapnia). The induced ocean acidification will very likely be a relevant factor shaping future marine environments. CO2 exposure concomitantly challenges the animal's capacity of acid-base and ionic regulation as well as the ability to maintain energy metabolism and calcification. Under conditions of acute hypercapnia, numerous studies have revealed a broad range of tolerance levels displayed by various marine taxa. Thus, it is well known that, in contrast to many marine invertebrates, most teleost fish are able to fully compensate acid-base disturbances in short-term experiments (hours to several days). in order to determine whether marine fish are able to preserve aerobic scope following long-term incubation to elevated CO2, we exposed two groups of Atlantic Cod for 4 and 12 months to 0.3 and 0.6 kPa P-CO2, respectively. Measurements of standard and active metabolic rates, critical swimming speeds and aerobic scope of long-term incubated cod showed no deviations from control values, indicating that locomotory performance is not compromised by the different levels of chronic hypercapnia. While the maintenance of high activity levels is supported by a 2-fold increased Na+/K+-ATPase protein expression and 2-fold elevated Na+/K+-ATPase activity in the 12 month incubated fish (0.6 kPa P-CO2), no such elevation in Na+/K+-ATPase activity could be observed in the group treated with 0.3 kPa P-CO2. Owing to the relevance of Na+/K+-ATPase as a general indicator for ion regulatory capacity, these results point at an adjustment of enzymatic activity to cope with the CO2 induced acid-base load at 0.6 kPa P-CO2 while under milder hypercapnic conditions the 'standard' Na+/K+-ATPase capacity might still be sufficient to maintain acid-base status. (c) 2009 Elsevier B.V. All rights reserved. Article in Journal/Newspaper atlantic cod Gadus morhua Ocean acidification OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Aquatic Toxicology 92 1 30 37 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Anthropogenic CO2 emissions lead to chronically elevated seawater CO2 partial pressures (hypercapnia). The induced ocean acidification will very likely be a relevant factor shaping future marine environments. CO2 exposure concomitantly challenges the animal's capacity of acid-base and ionic regulation as well as the ability to maintain energy metabolism and calcification. Under conditions of acute hypercapnia, numerous studies have revealed a broad range of tolerance levels displayed by various marine taxa. Thus, it is well known that, in contrast to many marine invertebrates, most teleost fish are able to fully compensate acid-base disturbances in short-term experiments (hours to several days). in order to determine whether marine fish are able to preserve aerobic scope following long-term incubation to elevated CO2, we exposed two groups of Atlantic Cod for 4 and 12 months to 0.3 and 0.6 kPa P-CO2, respectively. Measurements of standard and active metabolic rates, critical swimming speeds and aerobic scope of long-term incubated cod showed no deviations from control values, indicating that locomotory performance is not compromised by the different levels of chronic hypercapnia. While the maintenance of high activity levels is supported by a 2-fold increased Na+/K+-ATPase protein expression and 2-fold elevated Na+/K+-ATPase activity in the 12 month incubated fish (0.6 kPa P-CO2), no such elevation in Na+/K+-ATPase activity could be observed in the group treated with 0.3 kPa P-CO2. Owing to the relevance of Na+/K+-ATPase as a general indicator for ion regulatory capacity, these results point at an adjustment of enzymatic activity to cope with the CO2 induced acid-base load at 0.6 kPa P-CO2 while under milder hypercapnic conditions the 'standard' Na+/K+-ATPase capacity might still be sufficient to maintain acid-base status. (c) 2009 Elsevier B.V. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Melzner, Frank Göbel, Sandra Langenbuch, Martina Gutowska, Magdalena Pörtner, H.O. Lucassen, Magnus |
spellingShingle |
Melzner, Frank Göbel, Sandra Langenbuch, Martina Gutowska, Magdalena Pörtner, H.O. Lucassen, Magnus Swimming performance in Atlantic Cod (Gadus morhua) following long-term (4-12 months) acclimation to elevated seawater PCO2 |
author_facet |
Melzner, Frank Göbel, Sandra Langenbuch, Martina Gutowska, Magdalena Pörtner, H.O. Lucassen, Magnus |
author_sort |
Melzner, Frank |
title |
Swimming performance in Atlantic Cod (Gadus morhua) following long-term (4-12 months) acclimation to elevated seawater PCO2 |
title_short |
Swimming performance in Atlantic Cod (Gadus morhua) following long-term (4-12 months) acclimation to elevated seawater PCO2 |
title_full |
Swimming performance in Atlantic Cod (Gadus morhua) following long-term (4-12 months) acclimation to elevated seawater PCO2 |
title_fullStr |
Swimming performance in Atlantic Cod (Gadus morhua) following long-term (4-12 months) acclimation to elevated seawater PCO2 |
title_full_unstemmed |
Swimming performance in Atlantic Cod (Gadus morhua) following long-term (4-12 months) acclimation to elevated seawater PCO2 |
title_sort |
swimming performance in atlantic cod (gadus morhua) following long-term (4-12 months) acclimation to elevated seawater pco2 |
publisher |
Elsevier |
publishDate |
2009 |
url |
https://oceanrep.geomar.de/id/eprint/5669/ https://oceanrep.geomar.de/id/eprint/5669/1/564_Melzner_2009_SwimmingPerformanceInAtlanticCod_Artzeit_pubid11778.pdf https://doi.org/10.1016/j.aquatox.2008.12.011 |
genre |
atlantic cod Gadus morhua Ocean acidification |
genre_facet |
atlantic cod Gadus morhua Ocean acidification |
op_relation |
https://oceanrep.geomar.de/id/eprint/5669/1/564_Melzner_2009_SwimmingPerformanceInAtlanticCod_Artzeit_pubid11778.pdf Melzner, F. , Göbel, S., Langenbuch, M., Gutowska, M., Pörtner, H. O. and Lucassen, M. (2009) Swimming performance in Atlantic Cod (Gadus morhua) following long-term (4-12 months) acclimation to elevated seawater PCO2. Aquatic Toxicology, 92 . pp. 30-37. DOI 10.1016/j.aquatox.2008.12.011 <https://doi.org/10.1016/j.aquatox.2008.12.011>. doi:10.1016/j.aquatox.2008.12.011 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.aquatox.2008.12.011 |
container_title |
Aquatic Toxicology |
container_volume |
92 |
container_issue |
1 |
container_start_page |
30 |
op_container_end_page |
37 |
_version_ |
1766357868987023360 |