Potential and limitations of finite element modelling in assessing structural integrity of coralline algae under future global change
Coralline algae are important habitat formers found on all rocky shores. While the impact of future ocean acidification on the physiological performance of the species has been well studied, little research has focused on potential changes in structural integrity in response to climate change. A pre...
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ftdoajarticles:oai:doaj.org/article:491711a507744311a4471e697056a8f3 2023-05-15T17:51:42+02:00 Potential and limitations of finite element modelling in assessing structural integrity of coralline algae under future global change L. A. Melbourne J. Griffin D. N. Schmidt E. J. Rayfield 2015-10-01T00:00:00Z https://doi.org/10.5194/bg-12-5871-2015 https://doaj.org/article/491711a507744311a4471e697056a8f3 EN eng Copernicus Publications http://www.biogeosciences.net/12/5871/2015/bg-12-5871-2015.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 1726-4170 1726-4189 doi:10.5194/bg-12-5871-2015 https://doaj.org/article/491711a507744311a4471e697056a8f3 Biogeosciences, Vol 12, Iss 19, Pp 5871-5883 (2015) Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 article 2015 ftdoajarticles https://doi.org/10.5194/bg-12-5871-2015 2022-12-31T12:30:12Z Coralline algae are important habitat formers found on all rocky shores. While the impact of future ocean acidification on the physiological performance of the species has been well studied, little research has focused on potential changes in structural integrity in response to climate change. A previous study using 2-D Finite Element Analysis (FEA) suggested increased vulnerability to fracture (by wave action or boring) in algae grown under high CO 2 conditions. To assess how realistically 2-D simplified models represent structural performance, a series of increasingly biologically accurate 3-D FE models that represent different aspects of coralline algal growth were developed. Simplified geometric 3-D models of the genus Lithothamnion were compared to models created from computed tomography (CT) scan data of the same genus. The biologically accurate model and the simplified geometric model representing individual cells had similar average stresses and stress distributions, emphasising the importance of the cell walls in dissipating the stress throughout the structure. In contrast models without the accurate representation of the cell geometry resulted in larger stress and strain results. Our more complex 3-D model reiterated the potential of climate change to diminish the structural integrity of the organism. This suggests that under future environmental conditions the weakening of the coralline algal skeleton along with increased external pressures (wave and bioerosion) may negatively influence the ability for coralline algae to maintain a habitat able to sustain high levels of biodiversity. Article in Journal/Newspaper Ocean acidification Directory of Open Access Journals: DOAJ Articles Biogeosciences 12 19 5871 5883 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
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Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 L. A. Melbourne J. Griffin D. N. Schmidt E. J. Rayfield Potential and limitations of finite element modelling in assessing structural integrity of coralline algae under future global change |
topic_facet |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
description |
Coralline algae are important habitat formers found on all rocky shores. While the impact of future ocean acidification on the physiological performance of the species has been well studied, little research has focused on potential changes in structural integrity in response to climate change. A previous study using 2-D Finite Element Analysis (FEA) suggested increased vulnerability to fracture (by wave action or boring) in algae grown under high CO 2 conditions. To assess how realistically 2-D simplified models represent structural performance, a series of increasingly biologically accurate 3-D FE models that represent different aspects of coralline algal growth were developed. Simplified geometric 3-D models of the genus Lithothamnion were compared to models created from computed tomography (CT) scan data of the same genus. The biologically accurate model and the simplified geometric model representing individual cells had similar average stresses and stress distributions, emphasising the importance of the cell walls in dissipating the stress throughout the structure. In contrast models without the accurate representation of the cell geometry resulted in larger stress and strain results. Our more complex 3-D model reiterated the potential of climate change to diminish the structural integrity of the organism. This suggests that under future environmental conditions the weakening of the coralline algal skeleton along with increased external pressures (wave and bioerosion) may negatively influence the ability for coralline algae to maintain a habitat able to sustain high levels of biodiversity. |
format |
Article in Journal/Newspaper |
author |
L. A. Melbourne J. Griffin D. N. Schmidt E. J. Rayfield |
author_facet |
L. A. Melbourne J. Griffin D. N. Schmidt E. J. Rayfield |
author_sort |
L. A. Melbourne |
title |
Potential and limitations of finite element modelling in assessing structural integrity of coralline algae under future global change |
title_short |
Potential and limitations of finite element modelling in assessing structural integrity of coralline algae under future global change |
title_full |
Potential and limitations of finite element modelling in assessing structural integrity of coralline algae under future global change |
title_fullStr |
Potential and limitations of finite element modelling in assessing structural integrity of coralline algae under future global change |
title_full_unstemmed |
Potential and limitations of finite element modelling in assessing structural integrity of coralline algae under future global change |
title_sort |
potential and limitations of finite element modelling in assessing structural integrity of coralline algae under future global change |
publisher |
Copernicus Publications |
publishDate |
2015 |
url |
https://doi.org/10.5194/bg-12-5871-2015 https://doaj.org/article/491711a507744311a4471e697056a8f3 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Biogeosciences, Vol 12, Iss 19, Pp 5871-5883 (2015) |
op_relation |
http://www.biogeosciences.net/12/5871/2015/bg-12-5871-2015.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 1726-4170 1726-4189 doi:10.5194/bg-12-5871-2015 https://doaj.org/article/491711a507744311a4471e697056a8f3 |
op_doi |
https://doi.org/10.5194/bg-12-5871-2015 |
container_title |
Biogeosciences |
container_volume |
12 |
container_issue |
19 |
container_start_page |
5871 |
op_container_end_page |
5883 |
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1766158929875697664 |