Response of Copepods to Elevated pCO2 and Environmental Copper as Co-Stressors – A Multigenerational Study
We examined the impacts of ocean acidification and copper as co-stressors on the reproduction and population level responses of the benthic copepod Tisbe battagliai across two generations. Naupliar production, growth, and cuticle elemental composition were determined for four pH values: 8.06 (contro...
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ftpubmed:oai:pubmedcentral.nih.gov:3737157 2023-05-15T17:49:46+02:00 Response of Copepods to Elevated pCO2 and Environmental Copper as Co-Stressors – A Multigenerational Study Fitzer, Susan C. Caldwell, Gary S. Clare, Anthony S. Upstill-Goddard, Robert C. Bentley, Matthew G. 2013-08-07 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3737157 http://www.ncbi.nlm.nih.gov/pubmed/23951121 https://doi.org/10.1371/journal.pone.0071257 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3737157 http://www.ncbi.nlm.nih.gov/pubmed/23951121 http://dx.doi.org/10.1371/journal.pone.0071257 This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. CC-BY Research Article Text 2013 ftpubmed https://doi.org/10.1371/journal.pone.0071257 2013-09-05T03:36:16Z We examined the impacts of ocean acidification and copper as co-stressors on the reproduction and population level responses of the benthic copepod Tisbe battagliai across two generations. Naupliar production, growth, and cuticle elemental composition were determined for four pH values: 8.06 (control); 7.95; 7.82; 7.67, with copper addition to concentrations equivalent to those in benthic pore waters. An additive synergistic effect was observed; the decline in naupliar production was greater with added copper at decreasing pH than for decreasing pH alone. Naupliar production modelled for the two generations revealed a negative synergistic impact between ocean acidification and environmentally relevant copper concentrations. Conversely, copper addition enhanced copepod growth, with larger copepods produced at each pH compared to the impact of pH alone. Copepod digests revealed significantly reduced cuticle concentrations of sulphur, phosphorus and calcium under decreasing pH; further, copper uptake increased to toxic levels that lead to reduced naupliar production. These data suggest that ocean acidification will enhance copper bioavailability, resulting in larger, but less fecund individuals that may have an overall detrimental outcome for copepod populations. Text Ocean acidification Copepods PubMed Central (PMC) PLoS ONE 8 8 e71257 |
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Research Article Fitzer, Susan C. Caldwell, Gary S. Clare, Anthony S. Upstill-Goddard, Robert C. Bentley, Matthew G. Response of Copepods to Elevated pCO2 and Environmental Copper as Co-Stressors – A Multigenerational Study |
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Research Article |
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We examined the impacts of ocean acidification and copper as co-stressors on the reproduction and population level responses of the benthic copepod Tisbe battagliai across two generations. Naupliar production, growth, and cuticle elemental composition were determined for four pH values: 8.06 (control); 7.95; 7.82; 7.67, with copper addition to concentrations equivalent to those in benthic pore waters. An additive synergistic effect was observed; the decline in naupliar production was greater with added copper at decreasing pH than for decreasing pH alone. Naupliar production modelled for the two generations revealed a negative synergistic impact between ocean acidification and environmentally relevant copper concentrations. Conversely, copper addition enhanced copepod growth, with larger copepods produced at each pH compared to the impact of pH alone. Copepod digests revealed significantly reduced cuticle concentrations of sulphur, phosphorus and calcium under decreasing pH; further, copper uptake increased to toxic levels that lead to reduced naupliar production. These data suggest that ocean acidification will enhance copper bioavailability, resulting in larger, but less fecund individuals that may have an overall detrimental outcome for copepod populations. |
format |
Text |
author |
Fitzer, Susan C. Caldwell, Gary S. Clare, Anthony S. Upstill-Goddard, Robert C. Bentley, Matthew G. |
author_facet |
Fitzer, Susan C. Caldwell, Gary S. Clare, Anthony S. Upstill-Goddard, Robert C. Bentley, Matthew G. |
author_sort |
Fitzer, Susan C. |
title |
Response of Copepods to Elevated pCO2 and Environmental Copper as Co-Stressors – A Multigenerational Study |
title_short |
Response of Copepods to Elevated pCO2 and Environmental Copper as Co-Stressors – A Multigenerational Study |
title_full |
Response of Copepods to Elevated pCO2 and Environmental Copper as Co-Stressors – A Multigenerational Study |
title_fullStr |
Response of Copepods to Elevated pCO2 and Environmental Copper as Co-Stressors – A Multigenerational Study |
title_full_unstemmed |
Response of Copepods to Elevated pCO2 and Environmental Copper as Co-Stressors – A Multigenerational Study |
title_sort |
response of copepods to elevated pco2 and environmental copper as co-stressors – a multigenerational study |
publisher |
Public Library of Science |
publishDate |
2013 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3737157 http://www.ncbi.nlm.nih.gov/pubmed/23951121 https://doi.org/10.1371/journal.pone.0071257 |
genre |
Ocean acidification Copepods |
genre_facet |
Ocean acidification Copepods |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3737157 http://www.ncbi.nlm.nih.gov/pubmed/23951121 http://dx.doi.org/10.1371/journal.pone.0071257 |
op_rights |
This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
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CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0071257 |
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