CO(2)-driven ocean acidification alters and weakens integrity of the calcareous tubes produced by the serpulid tubeworm, Hydroides elegans.
As a consequence of anthropogenic CO(2-)driven ocean acidification (OA), coastal waters are becoming increasingly challenging for calcifiers due to reductions in saturation states of calcium carbonate (CaCO(3)) minerals. The response of calcification rate is one of the most frequently investigated s...
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ftdoajarticles:oai:doaj.org/article:6463386872cd40f1ba54a26977462c28 2023-05-15T17:50:47+02:00 CO(2)-driven ocean acidification alters and weakens integrity of the calcareous tubes produced by the serpulid tubeworm, Hydroides elegans. Vera Bin San Chan Chaoyi Li Ackley Charles Lane Yanchun Wang Xingwen Lu Kaimin Shih Tong Zhang Vengatesen Thiyagarajan 2012-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0042718 https://doaj.org/article/6463386872cd40f1ba54a26977462c28 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC3418283?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0042718 https://doaj.org/article/6463386872cd40f1ba54a26977462c28 PLoS ONE, Vol 7, Iss 8, p e42718 (2012) Medicine R Science Q article 2012 ftdoajarticles https://doi.org/10.1371/journal.pone.0042718 2022-12-31T15:57:55Z As a consequence of anthropogenic CO(2-)driven ocean acidification (OA), coastal waters are becoming increasingly challenging for calcifiers due to reductions in saturation states of calcium carbonate (CaCO(3)) minerals. The response of calcification rate is one of the most frequently investigated symptoms of OA. However, OA may also result in poor quality calcareous products through impaired calcification processes despite there being no observed change in calcification rate. The mineralogy and ultrastructure of the calcareous products under OA conditions may be altered, resulting in changes to the mechanical properties of calcified structures. Here, the warm water biofouling tubeworm, Hydroides elegans, was reared from larva to early juvenile stage at the aragonite saturation state (Ω(A)) for the current pCO(2) level (ambient) and those predicted for the years 2050, 2100 and 2300. Composition, ultrastructure and mechanical strength of the calcareous tubes produced by those early juvenile tubeworms were examined using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and nanoindentation. Juvenile tubes were composed primarily of the highly soluble CaCO(3) mineral form, aragonite. Tubes produced in seawater with aragonite saturation states near or below one had significantly higher proportions of the crystalline precursor, amorphous calcium carbonate (ACC) and the calcite/aragonite ratio dramatically increased. These alterations in tube mineralogy resulted in a holistic deterioration of the tube hardness and elasticity. Thus, in conditions where Ω(A) is near or below one, the aragonite-producing juvenile tubeworms may no longer be able to maintain the integrity of their calcification products, and may result in reduced survivorship due to the weakened tube protection. Article in Journal/Newspaper Ocean acidification Directory of Open Access Journals: DOAJ Articles PLoS ONE 7 8 e42718 |
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Directory of Open Access Journals: DOAJ Articles |
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Medicine R Science Q |
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Medicine R Science Q Vera Bin San Chan Chaoyi Li Ackley Charles Lane Yanchun Wang Xingwen Lu Kaimin Shih Tong Zhang Vengatesen Thiyagarajan CO(2)-driven ocean acidification alters and weakens integrity of the calcareous tubes produced by the serpulid tubeworm, Hydroides elegans. |
topic_facet |
Medicine R Science Q |
description |
As a consequence of anthropogenic CO(2-)driven ocean acidification (OA), coastal waters are becoming increasingly challenging for calcifiers due to reductions in saturation states of calcium carbonate (CaCO(3)) minerals. The response of calcification rate is one of the most frequently investigated symptoms of OA. However, OA may also result in poor quality calcareous products through impaired calcification processes despite there being no observed change in calcification rate. The mineralogy and ultrastructure of the calcareous products under OA conditions may be altered, resulting in changes to the mechanical properties of calcified structures. Here, the warm water biofouling tubeworm, Hydroides elegans, was reared from larva to early juvenile stage at the aragonite saturation state (Ω(A)) for the current pCO(2) level (ambient) and those predicted for the years 2050, 2100 and 2300. Composition, ultrastructure and mechanical strength of the calcareous tubes produced by those early juvenile tubeworms were examined using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and nanoindentation. Juvenile tubes were composed primarily of the highly soluble CaCO(3) mineral form, aragonite. Tubes produced in seawater with aragonite saturation states near or below one had significantly higher proportions of the crystalline precursor, amorphous calcium carbonate (ACC) and the calcite/aragonite ratio dramatically increased. These alterations in tube mineralogy resulted in a holistic deterioration of the tube hardness and elasticity. Thus, in conditions where Ω(A) is near or below one, the aragonite-producing juvenile tubeworms may no longer be able to maintain the integrity of their calcification products, and may result in reduced survivorship due to the weakened tube protection. |
format |
Article in Journal/Newspaper |
author |
Vera Bin San Chan Chaoyi Li Ackley Charles Lane Yanchun Wang Xingwen Lu Kaimin Shih Tong Zhang Vengatesen Thiyagarajan |
author_facet |
Vera Bin San Chan Chaoyi Li Ackley Charles Lane Yanchun Wang Xingwen Lu Kaimin Shih Tong Zhang Vengatesen Thiyagarajan |
author_sort |
Vera Bin San Chan |
title |
CO(2)-driven ocean acidification alters and weakens integrity of the calcareous tubes produced by the serpulid tubeworm, Hydroides elegans. |
title_short |
CO(2)-driven ocean acidification alters and weakens integrity of the calcareous tubes produced by the serpulid tubeworm, Hydroides elegans. |
title_full |
CO(2)-driven ocean acidification alters and weakens integrity of the calcareous tubes produced by the serpulid tubeworm, Hydroides elegans. |
title_fullStr |
CO(2)-driven ocean acidification alters and weakens integrity of the calcareous tubes produced by the serpulid tubeworm, Hydroides elegans. |
title_full_unstemmed |
CO(2)-driven ocean acidification alters and weakens integrity of the calcareous tubes produced by the serpulid tubeworm, Hydroides elegans. |
title_sort |
co(2)-driven ocean acidification alters and weakens integrity of the calcareous tubes produced by the serpulid tubeworm, hydroides elegans. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2012 |
url |
https://doi.org/10.1371/journal.pone.0042718 https://doaj.org/article/6463386872cd40f1ba54a26977462c28 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
PLoS ONE, Vol 7, Iss 8, p e42718 (2012) |
op_relation |
http://europepmc.org/articles/PMC3418283?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0042718 https://doaj.org/article/6463386872cd40f1ba54a26977462c28 |
op_doi |
https://doi.org/10.1371/journal.pone.0042718 |
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PLoS ONE |
container_volume |
7 |
container_issue |
8 |
container_start_page |
e42718 |
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1766157690854178816 |