Morphological Properties of Gastropod Shells in a Warmer and More Acidic Future Ocean Using 3D Micro-Computed Tomography
The increased absorption of atmospheric CO2 by the ocean reduces pH and affects the carbonate chemistry of seawater, thus interfering with the shell formation processes of marine calcifiers. The present study aims to examine the effects of ocean acidification and warming on the shell morphological p...
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ftdoajarticles:oai:doaj.org/article:048cc1c8d67c46d985e1ab927b749669 2023-05-15T17:50:19+02:00 Morphological Properties of Gastropod Shells in a Warmer and More Acidic Future Ocean Using 3D Micro-Computed Tomography Eva Chatzinikolaou Kleoniki Keklikoglou Panos Grigoriou 2021-04-01T00:00:00Z https://doi.org/10.3389/fmars.2021.645660 https://doaj.org/article/048cc1c8d67c46d985e1ab927b749669 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fmars.2021.645660/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2021.645660 https://doaj.org/article/048cc1c8d67c46d985e1ab927b749669 Frontiers in Marine Science, Vol 8 (2021) climate change ocean acidification shell density shell thickness shell porosity gastropod Science Q General. Including nature conservation geographical distribution QH1-199.5 article 2021 ftdoajarticles https://doi.org/10.3389/fmars.2021.645660 2022-12-31T09:36:15Z The increased absorption of atmospheric CO2 by the ocean reduces pH and affects the carbonate chemistry of seawater, thus interfering with the shell formation processes of marine calcifiers. The present study aims to examine the effects of ocean acidification and warming on the shell morphological properties of two intertidal gastropod species, Nassarius nitidus and Columbella rustica. The experimental treatments lasted for 3 months and combined a temperature increase of 3°C and a pH reduction of 0.3 units. The selected treatments reflected the high emissions (RCP 8.5) “business as usual” scenario of the Intergovernmental Panel on Climate Change models for eastern Mediterranean. The morphological and architectural properties of the shell, such as density, thickness and porosity were examined using 3D micro-computed tomography, which is a technique giving the advantage of calculating values for the total shell (not only at specific points) and at the same time leaving the shells intact. Nassarius nitidus had a lower shell density and thickness and a higher porosity when the pH was reduced at ambient temperature, but the combination of reduced pH and increased temperature did not have a noticeable effect in comparison to the control. The shell of Columbella rustica was less dense, thinner and more porous under acidic and warm conditions, but when the temperature was increased under ambient pH the shells were thicker and denser than the control. Under low pH and ambient temperature, shells showed no differences compared to the control. The vulnerability of calcareous shells to ocean acidification and warming appears to be variable among species. Plasticity of shell building organisms as an acclimation action toward a continuously changing marine environment needs to be further investigated focusing on species or shell region specific adaptation mechanisms. Article in Journal/Newspaper Ocean acidification Directory of Open Access Journals: DOAJ Articles Frontiers in Marine Science 8 |
institution |
Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
climate change ocean acidification shell density shell thickness shell porosity gastropod Science Q General. Including nature conservation geographical distribution QH1-199.5 |
spellingShingle |
climate change ocean acidification shell density shell thickness shell porosity gastropod Science Q General. Including nature conservation geographical distribution QH1-199.5 Eva Chatzinikolaou Kleoniki Keklikoglou Panos Grigoriou Morphological Properties of Gastropod Shells in a Warmer and More Acidic Future Ocean Using 3D Micro-Computed Tomography |
topic_facet |
climate change ocean acidification shell density shell thickness shell porosity gastropod Science Q General. Including nature conservation geographical distribution QH1-199.5 |
description |
The increased absorption of atmospheric CO2 by the ocean reduces pH and affects the carbonate chemistry of seawater, thus interfering with the shell formation processes of marine calcifiers. The present study aims to examine the effects of ocean acidification and warming on the shell morphological properties of two intertidal gastropod species, Nassarius nitidus and Columbella rustica. The experimental treatments lasted for 3 months and combined a temperature increase of 3°C and a pH reduction of 0.3 units. The selected treatments reflected the high emissions (RCP 8.5) “business as usual” scenario of the Intergovernmental Panel on Climate Change models for eastern Mediterranean. The morphological and architectural properties of the shell, such as density, thickness and porosity were examined using 3D micro-computed tomography, which is a technique giving the advantage of calculating values for the total shell (not only at specific points) and at the same time leaving the shells intact. Nassarius nitidus had a lower shell density and thickness and a higher porosity when the pH was reduced at ambient temperature, but the combination of reduced pH and increased temperature did not have a noticeable effect in comparison to the control. The shell of Columbella rustica was less dense, thinner and more porous under acidic and warm conditions, but when the temperature was increased under ambient pH the shells were thicker and denser than the control. Under low pH and ambient temperature, shells showed no differences compared to the control. The vulnerability of calcareous shells to ocean acidification and warming appears to be variable among species. Plasticity of shell building organisms as an acclimation action toward a continuously changing marine environment needs to be further investigated focusing on species or shell region specific adaptation mechanisms. |
format |
Article in Journal/Newspaper |
author |
Eva Chatzinikolaou Kleoniki Keklikoglou Panos Grigoriou |
author_facet |
Eva Chatzinikolaou Kleoniki Keklikoglou Panos Grigoriou |
author_sort |
Eva Chatzinikolaou |
title |
Morphological Properties of Gastropod Shells in a Warmer and More Acidic Future Ocean Using 3D Micro-Computed Tomography |
title_short |
Morphological Properties of Gastropod Shells in a Warmer and More Acidic Future Ocean Using 3D Micro-Computed Tomography |
title_full |
Morphological Properties of Gastropod Shells in a Warmer and More Acidic Future Ocean Using 3D Micro-Computed Tomography |
title_fullStr |
Morphological Properties of Gastropod Shells in a Warmer and More Acidic Future Ocean Using 3D Micro-Computed Tomography |
title_full_unstemmed |
Morphological Properties of Gastropod Shells in a Warmer and More Acidic Future Ocean Using 3D Micro-Computed Tomography |
title_sort |
morphological properties of gastropod shells in a warmer and more acidic future ocean using 3d micro-computed tomography |
publisher |
Frontiers Media S.A. |
publishDate |
2021 |
url |
https://doi.org/10.3389/fmars.2021.645660 https://doaj.org/article/048cc1c8d67c46d985e1ab927b749669 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Frontiers in Marine Science, Vol 8 (2021) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fmars.2021.645660/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2021.645660 https://doaj.org/article/048cc1c8d67c46d985e1ab927b749669 |
op_doi |
https://doi.org/10.3389/fmars.2021.645660 |
container_title |
Frontiers in Marine Science |
container_volume |
8 |
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1766157028106960896 |