Fluctuating seawater pH/pCO2 regimes are more energetically expensive than static pH/pCO2 levels in the mussel Mytilus edulis
Ocean acidification (OA) studies typically use stable open-ocean pH or CO2 values. However, species living within dynamic coastal environments can naturally experience wide fluctuations in abiotic factors, suggesting their responses to stable pH conditions may not be reflective of either present or...
Published in: | Proceedings of the Royal Society B: Biological Sciences |
---|---|
Main Authors: | , , , , |
Format: | Text |
Language: | English |
Published: |
The Royal Society
2017
|
Subjects: | |
Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5666100/ http://www.ncbi.nlm.nih.gov/pubmed/29046378 https://doi.org/10.1098/rspb.2017.1642 |
id |
ftpubmed:oai:pubmedcentral.nih.gov:5666100 |
---|---|
record_format |
openpolar |
spelling |
ftpubmed:oai:pubmedcentral.nih.gov:5666100 2023-05-15T17:51:22+02:00 Fluctuating seawater pH/pCO2 regimes are more energetically expensive than static pH/pCO2 levels in the mussel Mytilus edulis Mangan, Stephanie Urbina, Mauricio A. Findlay, Helen S. Wilson, Rod W. Lewis, Ceri 2017-10-25 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5666100/ http://www.ncbi.nlm.nih.gov/pubmed/29046378 https://doi.org/10.1098/rspb.2017.1642 en eng The Royal Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5666100/ http://www.ncbi.nlm.nih.gov/pubmed/29046378 http://dx.doi.org/10.1098/rspb.2017.1642 © 2017 The Authors. http://creativecommons.org/licenses/by/4.0/ Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. CC-BY Global Change and Conservation Text 2017 ftpubmed https://doi.org/10.1098/rspb.2017.1642 2017-11-12T01:17:23Z Ocean acidification (OA) studies typically use stable open-ocean pH or CO2 values. However, species living within dynamic coastal environments can naturally experience wide fluctuations in abiotic factors, suggesting their responses to stable pH conditions may not be reflective of either present or near-future conditions. Here we investigate the physiological responses of the mussel Mytilus edulis to variable seawater pH conditions over short- (6 h) and medium-term (2 weeks) exposures under both current and near-future OA scenarios. Mussel haemolymph pH closely mirrored that of seawater pH over short-term changes of 1 pH unit with acidosis or recovery accordingly, highlighting a limited capacity for acid–base regulation. After 2 weeks, mussels under variable pH conditions had significantly higher metabolic rates, antioxidant enzyme activities and lipid peroxidation than those exposed to static pH under both current and near-future OA scenarios. Static near-future pH conditions induced significant acid–base disturbances and lipid peroxidation compared with the static present-day conditions but did not affect the metabolic rate. These results clearly demonstrate that living in naturally variable environments is energetically more expensive than living in static seawater conditions, which has consequences for how we extrapolate future OA responses in coastal species. Text Ocean acidification PubMed Central (PMC) Proceedings of the Royal Society B: Biological Sciences 284 1865 20171642 |
institution |
Open Polar |
collection |
PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Global Change and Conservation |
spellingShingle |
Global Change and Conservation Mangan, Stephanie Urbina, Mauricio A. Findlay, Helen S. Wilson, Rod W. Lewis, Ceri Fluctuating seawater pH/pCO2 regimes are more energetically expensive than static pH/pCO2 levels in the mussel Mytilus edulis |
topic_facet |
Global Change and Conservation |
description |
Ocean acidification (OA) studies typically use stable open-ocean pH or CO2 values. However, species living within dynamic coastal environments can naturally experience wide fluctuations in abiotic factors, suggesting their responses to stable pH conditions may not be reflective of either present or near-future conditions. Here we investigate the physiological responses of the mussel Mytilus edulis to variable seawater pH conditions over short- (6 h) and medium-term (2 weeks) exposures under both current and near-future OA scenarios. Mussel haemolymph pH closely mirrored that of seawater pH over short-term changes of 1 pH unit with acidosis or recovery accordingly, highlighting a limited capacity for acid–base regulation. After 2 weeks, mussels under variable pH conditions had significantly higher metabolic rates, antioxidant enzyme activities and lipid peroxidation than those exposed to static pH under both current and near-future OA scenarios. Static near-future pH conditions induced significant acid–base disturbances and lipid peroxidation compared with the static present-day conditions but did not affect the metabolic rate. These results clearly demonstrate that living in naturally variable environments is energetically more expensive than living in static seawater conditions, which has consequences for how we extrapolate future OA responses in coastal species. |
format |
Text |
author |
Mangan, Stephanie Urbina, Mauricio A. Findlay, Helen S. Wilson, Rod W. Lewis, Ceri |
author_facet |
Mangan, Stephanie Urbina, Mauricio A. Findlay, Helen S. Wilson, Rod W. Lewis, Ceri |
author_sort |
Mangan, Stephanie |
title |
Fluctuating seawater pH/pCO2 regimes are more energetically expensive than static pH/pCO2 levels in the mussel Mytilus edulis |
title_short |
Fluctuating seawater pH/pCO2 regimes are more energetically expensive than static pH/pCO2 levels in the mussel Mytilus edulis |
title_full |
Fluctuating seawater pH/pCO2 regimes are more energetically expensive than static pH/pCO2 levels in the mussel Mytilus edulis |
title_fullStr |
Fluctuating seawater pH/pCO2 regimes are more energetically expensive than static pH/pCO2 levels in the mussel Mytilus edulis |
title_full_unstemmed |
Fluctuating seawater pH/pCO2 regimes are more energetically expensive than static pH/pCO2 levels in the mussel Mytilus edulis |
title_sort |
fluctuating seawater ph/pco2 regimes are more energetically expensive than static ph/pco2 levels in the mussel mytilus edulis |
publisher |
The Royal Society |
publishDate |
2017 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5666100/ http://www.ncbi.nlm.nih.gov/pubmed/29046378 https://doi.org/10.1098/rspb.2017.1642 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5666100/ http://www.ncbi.nlm.nih.gov/pubmed/29046378 http://dx.doi.org/10.1098/rspb.2017.1642 |
op_rights |
© 2017 The Authors. http://creativecommons.org/licenses/by/4.0/ Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1098/rspb.2017.1642 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
284 |
container_issue |
1865 |
container_start_page |
20171642 |
_version_ |
1766158495550275584 |