Antioxidant response of the hard shelled mussel Mytilus coruscus exposed to reduced pH and oxygen concentration
Ocean acidification (OA) and hypoxic events are increasing worldwide problems, their interactive effects have not been well clarified, although their co-occurrence is prevalent. The East China Sea (the Yangtze River estuary area) suffers from not only coastal hypoxia but also pH fluctuation, represe...
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ftawi:oai:epic.awi.de:43044 2024-09-15T18:28:20+00:00 Antioxidant response of the hard shelled mussel Mytilus coruscus exposed to reduced pH and oxygen concentration Sui, Yanming Hu, Menghong Shang, Yueyong Wu, Fangli Huang, Xizhi Dupont, Sam Storch, Daniela Pörtner, Hans-Otto Li, Jiale Lu, Weiqun Wang, Youji 2017 https://epic.awi.de/id/eprint/43044/ https://doi.org/10.1016/j.ecoenv.2016.11.023 https://hdl.handle.net/10013/epic.49565 unknown Sui, Y. , Hu, M. , Shang, Y. , Wu, F. , Huang, X. , Dupont, S. , Storch, D. orcid:0000-0003-3090-7554 , Pörtner, H. O. orcid:0000-0001-6535-6575 , Li, J. , Lu, W. and Wang, Y. (2017) Antioxidant response of the hard shelled mussel Mytilus coruscus exposed to reduced pH and oxygen concentration , Ecotoxicology and Environmental Safety, 137 , pp. 94-102 . doi:10.1016/j.ecoenv.2016.11.023 <https://doi.org/10.1016/j.ecoenv.2016.11.023> , hdl:10013/epic.49565 EPIC3Ecotoxicology and Environmental Safety, 137, pp. 94-102, ISSN: 01476513 Article isiRev 2017 ftawi https://doi.org/10.1016/j.ecoenv.2016.11.023 2024-06-24T04:16:35Z Ocean acidification (OA) and hypoxic events are increasing worldwide problems, their interactive effects have not been well clarified, although their co-occurrence is prevalent. The East China Sea (the Yangtze River estuary area) suffers from not only coastal hypoxia but also pH fluctuation, representing an ideal study site to explore the combined effect of OA and hypoxia on marine bivalves. We experimentally evaluated the antioxidant response of the mussel Mytilus coruscus exposed to three pH levels (8.1, 7.7 and 7.3) at two dissolved oxygen (DO) levels (2.0 mg L−1 and 6.0 mg L−1) for 72 h. Activities of superoxide dismutase, catalase, glutathione peroxidase, acid phosphatase, and alkaline phosphatase and levels of malondialdehyde were measured in gills and hemolymph. All enzymatic activities in hemolymph and gills followed a similar pattern throughout the experiment duration. Generally, low DO showed greater effects on enzyme activities than elevated CO2. Significant interactions between DO, pH and time were only observed at superoxide dismutase and catalase in both tissues. PCA revealed positive relationships between most enzyme activities in both gills and hemolymph with the exception of alkaline phosphatase activity and the level of malondialdehyde in the hemolymph. Overall, our results suggested that decreased pH and low DO induced similar antioxidant responses in the hard shelled mussel, and showed an additive effect on most enzyme activities. The evaluation of multiple environmental stressors, a more realistic scenario than single ones, is crucial to predict the effect of future global changes on coastal species and our results supply some insights on the potential combined effects of reduced pH and DO on marine bivalves. Article in Journal/Newspaper Ocean acidification Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Ecotoxicology and Environmental Safety 137 94 102 |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
Ocean acidification (OA) and hypoxic events are increasing worldwide problems, their interactive effects have not been well clarified, although their co-occurrence is prevalent. The East China Sea (the Yangtze River estuary area) suffers from not only coastal hypoxia but also pH fluctuation, representing an ideal study site to explore the combined effect of OA and hypoxia on marine bivalves. We experimentally evaluated the antioxidant response of the mussel Mytilus coruscus exposed to three pH levels (8.1, 7.7 and 7.3) at two dissolved oxygen (DO) levels (2.0 mg L−1 and 6.0 mg L−1) for 72 h. Activities of superoxide dismutase, catalase, glutathione peroxidase, acid phosphatase, and alkaline phosphatase and levels of malondialdehyde were measured in gills and hemolymph. All enzymatic activities in hemolymph and gills followed a similar pattern throughout the experiment duration. Generally, low DO showed greater effects on enzyme activities than elevated CO2. Significant interactions between DO, pH and time were only observed at superoxide dismutase and catalase in both tissues. PCA revealed positive relationships between most enzyme activities in both gills and hemolymph with the exception of alkaline phosphatase activity and the level of malondialdehyde in the hemolymph. Overall, our results suggested that decreased pH and low DO induced similar antioxidant responses in the hard shelled mussel, and showed an additive effect on most enzyme activities. The evaluation of multiple environmental stressors, a more realistic scenario than single ones, is crucial to predict the effect of future global changes on coastal species and our results supply some insights on the potential combined effects of reduced pH and DO on marine bivalves. |
format |
Article in Journal/Newspaper |
author |
Sui, Yanming Hu, Menghong Shang, Yueyong Wu, Fangli Huang, Xizhi Dupont, Sam Storch, Daniela Pörtner, Hans-Otto Li, Jiale Lu, Weiqun Wang, Youji |
spellingShingle |
Sui, Yanming Hu, Menghong Shang, Yueyong Wu, Fangli Huang, Xizhi Dupont, Sam Storch, Daniela Pörtner, Hans-Otto Li, Jiale Lu, Weiqun Wang, Youji Antioxidant response of the hard shelled mussel Mytilus coruscus exposed to reduced pH and oxygen concentration |
author_facet |
Sui, Yanming Hu, Menghong Shang, Yueyong Wu, Fangli Huang, Xizhi Dupont, Sam Storch, Daniela Pörtner, Hans-Otto Li, Jiale Lu, Weiqun Wang, Youji |
author_sort |
Sui, Yanming |
title |
Antioxidant response of the hard shelled mussel Mytilus coruscus exposed to reduced pH and oxygen concentration |
title_short |
Antioxidant response of the hard shelled mussel Mytilus coruscus exposed to reduced pH and oxygen concentration |
title_full |
Antioxidant response of the hard shelled mussel Mytilus coruscus exposed to reduced pH and oxygen concentration |
title_fullStr |
Antioxidant response of the hard shelled mussel Mytilus coruscus exposed to reduced pH and oxygen concentration |
title_full_unstemmed |
Antioxidant response of the hard shelled mussel Mytilus coruscus exposed to reduced pH and oxygen concentration |
title_sort |
antioxidant response of the hard shelled mussel mytilus coruscus exposed to reduced ph and oxygen concentration |
publishDate |
2017 |
url |
https://epic.awi.de/id/eprint/43044/ https://doi.org/10.1016/j.ecoenv.2016.11.023 https://hdl.handle.net/10013/epic.49565 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
EPIC3Ecotoxicology and Environmental Safety, 137, pp. 94-102, ISSN: 01476513 |
op_relation |
Sui, Y. , Hu, M. , Shang, Y. , Wu, F. , Huang, X. , Dupont, S. , Storch, D. orcid:0000-0003-3090-7554 , Pörtner, H. O. orcid:0000-0001-6535-6575 , Li, J. , Lu, W. and Wang, Y. (2017) Antioxidant response of the hard shelled mussel Mytilus coruscus exposed to reduced pH and oxygen concentration , Ecotoxicology and Environmental Safety, 137 , pp. 94-102 . doi:10.1016/j.ecoenv.2016.11.023 <https://doi.org/10.1016/j.ecoenv.2016.11.023> , hdl:10013/epic.49565 |
op_doi |
https://doi.org/10.1016/j.ecoenv.2016.11.023 |
container_title |
Ecotoxicology and Environmental Safety |
container_volume |
137 |
container_start_page |
94 |
op_container_end_page |
102 |
_version_ |
1810469678727823360 |