Impacts of ocean acidification on intertidal benthic foraminiferal growth and calcification
Funding: This work is a contribution to FGG’s PhD study programme at the University of St Andrews, UK, and is funded by Secretaría de Educación Superior, Ciencia, Tecnología e Innovación de la República del Ecuador (SENESCYT). Foraminifera are expected to be particularly susceptible to future change...
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ftstandrewserep:oai:research-repository.st-andrews.ac.uk:10023/18353 2024-09-15T18:27:50+00:00 Impacts of ocean acidification on intertidal benthic foraminiferal growth and calcification Guamán-Guevara, Fabricio Austin, Heather Hicks, Natalie Streeter, Richard Austin, William E. N. University of St Andrews.School of Geography & Sustainable Development University of St Andrews.Bell-Edwards Geographic Data Institute University of St Andrews.Scottish Oceans Institute University of St Andrews.St Andrews Sustainability Institute University of St Andrews.Coastal Resources Management Group University of St Andrews.Marine Alliance for Science & Technology Scotland 2019-08-22T12:30:02Z 21 1216307 application/pdf https://hdl.handle.net/10023/18353 https://doi.org/10.1371/journal.pone.0220046 https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0220046#sec031 eng eng PLoS ONE 260748055 e420a2e3-7d4d-4055-b135-fac5d0d7ad5a 85071001310 000485033100008 Guamán-Guevara , F , Austin , H , Hicks , N , Streeter , R & Austin , W E N 2019 , ' Impacts of ocean acidification on intertidal benthic foraminiferal growth and calcification ' , PLoS ONE , vol. 14 , no. 8 , e0220046 . https://doi.org/10.1371/journal.pone.0220046 1932-6203 RIS: urn:D134A824A2C743FED86EC9F7DFC5B1BD ORCID: /0000-0003-2261-4540/work/64697925 https://hdl.handle.net/10023/18353 doi:10.1371/journal.pone.0220046 https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0220046#sec031 Copyright: © 2019 Guamán-Guevara et al. 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. G Geography (General) GC Oceanography NDAS SDG 14 - Life Below Water G1 GC Journal article 2019 ftstandrewserep https://doi.org/10.1371/journal.pone.0220046 2024-08-28T00:12:18Z Funding: This work is a contribution to FGG’s PhD study programme at the University of St Andrews, UK, and is funded by Secretaría de Educación Superior, Ciencia, Tecnología e Innovación de la República del Ecuador (SENESCYT). Foraminifera are expected to be particularly susceptible to future changes in ocean carbonate chemistry as a function of increased atmospheric CO2. Studies in an experimental recirculating seawater system were performed with a dominant benthic foraminiferal species collected from intertidal mudflats. We investigated the experimental impacts of ocean acidification on survival, growth/calcification, morphology and the biometric features of a calcareous species Elphidium williamsoni. Foraminifera were exposed for 6 weeks to four different pH treatments that replicated future scenarios of a high CO2 atmosphere resulting in lower seawater pH. Results revealed that declining seawater pH caused a decline in foraminiferal survival rate and growth/calcification (mainly through test weight reduction). Scanning electron microscopy image analysis of live specimens at the end of the experimental period show changes in foraminiferal morphology with clear signs of corrosion and cracking on the test surface, septal bridges, sutures and feeding structures of specimens exposed to the lowest pH conditions. These findings suggest that the morphological changes observed in shell feeding structures may serve to alter: (1) foraminiferal feeding efficiency and their long-term ecological competitiveness, (2) the energy transferred within the benthic food web with a subsequent shift in benthic community structures and (3) carbon cycling and total CaCO3 production, both highly significant processes in coastal waters. These experimental results open-up the possibility of modelling future impacts of ocean acidification on both calcification and dissolution in benthic foraminifera within mid-latitude intertidal environments, with potential implications for understanding the changing marine carbon cycle. Peer ... Article in Journal/Newspaper Ocean acidification University of St Andrews: Digital Research Repository PLOS ONE 14 8 e0220046 |
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University of St Andrews: Digital Research Repository |
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ftstandrewserep |
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English |
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G Geography (General) GC Oceanography NDAS SDG 14 - Life Below Water G1 GC |
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G Geography (General) GC Oceanography NDAS SDG 14 - Life Below Water G1 GC Guamán-Guevara, Fabricio Austin, Heather Hicks, Natalie Streeter, Richard Austin, William E. N. Impacts of ocean acidification on intertidal benthic foraminiferal growth and calcification |
topic_facet |
G Geography (General) GC Oceanography NDAS SDG 14 - Life Below Water G1 GC |
description |
Funding: This work is a contribution to FGG’s PhD study programme at the University of St Andrews, UK, and is funded by Secretaría de Educación Superior, Ciencia, Tecnología e Innovación de la República del Ecuador (SENESCYT). Foraminifera are expected to be particularly susceptible to future changes in ocean carbonate chemistry as a function of increased atmospheric CO2. Studies in an experimental recirculating seawater system were performed with a dominant benthic foraminiferal species collected from intertidal mudflats. We investigated the experimental impacts of ocean acidification on survival, growth/calcification, morphology and the biometric features of a calcareous species Elphidium williamsoni. Foraminifera were exposed for 6 weeks to four different pH treatments that replicated future scenarios of a high CO2 atmosphere resulting in lower seawater pH. Results revealed that declining seawater pH caused a decline in foraminiferal survival rate and growth/calcification (mainly through test weight reduction). Scanning electron microscopy image analysis of live specimens at the end of the experimental period show changes in foraminiferal morphology with clear signs of corrosion and cracking on the test surface, septal bridges, sutures and feeding structures of specimens exposed to the lowest pH conditions. These findings suggest that the morphological changes observed in shell feeding structures may serve to alter: (1) foraminiferal feeding efficiency and their long-term ecological competitiveness, (2) the energy transferred within the benthic food web with a subsequent shift in benthic community structures and (3) carbon cycling and total CaCO3 production, both highly significant processes in coastal waters. These experimental results open-up the possibility of modelling future impacts of ocean acidification on both calcification and dissolution in benthic foraminifera within mid-latitude intertidal environments, with potential implications for understanding the changing marine carbon cycle. Peer ... |
author2 |
University of St Andrews.School of Geography & Sustainable Development University of St Andrews.Bell-Edwards Geographic Data Institute University of St Andrews.Scottish Oceans Institute University of St Andrews.St Andrews Sustainability Institute University of St Andrews.Coastal Resources Management Group University of St Andrews.Marine Alliance for Science & Technology Scotland |
format |
Article in Journal/Newspaper |
author |
Guamán-Guevara, Fabricio Austin, Heather Hicks, Natalie Streeter, Richard Austin, William E. N. |
author_facet |
Guamán-Guevara, Fabricio Austin, Heather Hicks, Natalie Streeter, Richard Austin, William E. N. |
author_sort |
Guamán-Guevara, Fabricio |
title |
Impacts of ocean acidification on intertidal benthic foraminiferal growth and calcification |
title_short |
Impacts of ocean acidification on intertidal benthic foraminiferal growth and calcification |
title_full |
Impacts of ocean acidification on intertidal benthic foraminiferal growth and calcification |
title_fullStr |
Impacts of ocean acidification on intertidal benthic foraminiferal growth and calcification |
title_full_unstemmed |
Impacts of ocean acidification on intertidal benthic foraminiferal growth and calcification |
title_sort |
impacts of ocean acidification on intertidal benthic foraminiferal growth and calcification |
publishDate |
2019 |
url |
https://hdl.handle.net/10023/18353 https://doi.org/10.1371/journal.pone.0220046 https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0220046#sec031 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
PLoS ONE 260748055 e420a2e3-7d4d-4055-b135-fac5d0d7ad5a 85071001310 000485033100008 Guamán-Guevara , F , Austin , H , Hicks , N , Streeter , R & Austin , W E N 2019 , ' Impacts of ocean acidification on intertidal benthic foraminiferal growth and calcification ' , PLoS ONE , vol. 14 , no. 8 , e0220046 . https://doi.org/10.1371/journal.pone.0220046 1932-6203 RIS: urn:D134A824A2C743FED86EC9F7DFC5B1BD ORCID: /0000-0003-2261-4540/work/64697925 https://hdl.handle.net/10023/18353 doi:10.1371/journal.pone.0220046 https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0220046#sec031 |
op_rights |
Copyright: © 2019 Guamán-Guevara et al. 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. |
op_doi |
https://doi.org/10.1371/journal.pone.0220046 |
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