Comparison of the shell structure of two tropical Thecosomata (Creseis acicula and Diacavolinia longirostris) from 1963 to 2009: potential implications of declining aragonite saturation
<qd> Roger, L. M., Richardson, A. J., McKinnon, A. D., Knott, B., Matear, R., and Scadding, C. 2012. Comparison of the shell structure of two tropical Thecosomata ( Creseis acicula and Diacavolinia longirostris ) from 1963 to 2009: potential implications of declining aragonite saturation. – IC...
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fthighwire:oai:open-archive.highwire.org:icesjms:69/3/465 2023-05-15T17:50:42+02:00 Comparison of the shell structure of two tropical Thecosomata (Creseis acicula and Diacavolinia longirostris) from 1963 to 2009: potential implications of declining aragonite saturation Roger, Liza M. Richardson, Anthony J. McKinnon, A. David Knott, Brenton Matear, Richard Scadding, Cameron 2012-05-01 00:00:00.0 text/html http://icesjms.oxfordjournals.org/cgi/content/short/69/3/465 https://doi.org/10.1093/icesjms/fsr171 en eng Oxford University Press http://icesjms.oxfordjournals.org/cgi/content/short/69/3/465 http://dx.doi.org/10.1093/icesjms/fsr171 Copyright (C) 2012, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer Articles TEXT 2012 fthighwire https://doi.org/10.1093/icesjms/fsr171 2012-06-19T02:12:11Z <qd> Roger, L. M., Richardson, A. J., McKinnon, A. D., Knott, B., Matear, R., and Scadding, C. 2012. Comparison of the shell structure of two tropical Thecosomata ( Creseis acicula and Diacavolinia longirostris ) from 1963 to 2009: potential implications of declining aragonite saturation. – ICES Journal of Marine Science, 69: 465–474. </qd>Thecosomata (shelled pteropod molluscs) are calcifiers that play an important role in the ocean carbonate cycle. Ocean acidification as a result of the uptake of CO 2 affects pteropods by increasing dissolution rates of their aragonite skeletons. Two species of pteropod found in Australian tropical waters were studied, Creseis acicula and Diacavolinia longirostris . To assess the changes in their aragonite shells, shell morphology, growth patterns, structure, size, and porosity are described for both species, from material collected at seven sites between the 1960s and the 2000s. Shell characteristics were used to explore variations over time potentially related to ocean acidification. The aragonite saturation level (Ω arag ) of surface waters was hindcast and a decline equivalent to −10% (average of the seven sites) was found. Simultaneously, variations in shell thickness were recorded ( C. acicula by −4.43 µm, D. longirostris by −5.37 µm) over the study period along with a significant increase in shell porosity ( C. acicula : +1.43%, D. longirostris : +8.69%). The work, although not conclusive, does suggest that pteropods off Northern Australia may have been influenced by the decline in Ω arag over the past few decades. Such adverse effects could ultimately affect thecosome survival and that of their predators. Text Ocean acidification HighWire Press (Stanford University) ICES Journal of Marine Science 69 3 465 474 |
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Articles Roger, Liza M. Richardson, Anthony J. McKinnon, A. David Knott, Brenton Matear, Richard Scadding, Cameron Comparison of the shell structure of two tropical Thecosomata (Creseis acicula and Diacavolinia longirostris) from 1963 to 2009: potential implications of declining aragonite saturation |
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Articles |
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<qd> Roger, L. M., Richardson, A. J., McKinnon, A. D., Knott, B., Matear, R., and Scadding, C. 2012. Comparison of the shell structure of two tropical Thecosomata ( Creseis acicula and Diacavolinia longirostris ) from 1963 to 2009: potential implications of declining aragonite saturation. – ICES Journal of Marine Science, 69: 465–474. </qd>Thecosomata (shelled pteropod molluscs) are calcifiers that play an important role in the ocean carbonate cycle. Ocean acidification as a result of the uptake of CO 2 affects pteropods by increasing dissolution rates of their aragonite skeletons. Two species of pteropod found in Australian tropical waters were studied, Creseis acicula and Diacavolinia longirostris . To assess the changes in their aragonite shells, shell morphology, growth patterns, structure, size, and porosity are described for both species, from material collected at seven sites between the 1960s and the 2000s. Shell characteristics were used to explore variations over time potentially related to ocean acidification. The aragonite saturation level (Ω arag ) of surface waters was hindcast and a decline equivalent to −10% (average of the seven sites) was found. Simultaneously, variations in shell thickness were recorded ( C. acicula by −4.43 µm, D. longirostris by −5.37 µm) over the study period along with a significant increase in shell porosity ( C. acicula : +1.43%, D. longirostris : +8.69%). The work, although not conclusive, does suggest that pteropods off Northern Australia may have been influenced by the decline in Ω arag over the past few decades. Such adverse effects could ultimately affect thecosome survival and that of their predators. |
format |
Text |
author |
Roger, Liza M. Richardson, Anthony J. McKinnon, A. David Knott, Brenton Matear, Richard Scadding, Cameron |
author_facet |
Roger, Liza M. Richardson, Anthony J. McKinnon, A. David Knott, Brenton Matear, Richard Scadding, Cameron |
author_sort |
Roger, Liza M. |
title |
Comparison of the shell structure of two tropical Thecosomata (Creseis acicula and Diacavolinia longirostris) from 1963 to 2009: potential implications of declining aragonite saturation |
title_short |
Comparison of the shell structure of two tropical Thecosomata (Creseis acicula and Diacavolinia longirostris) from 1963 to 2009: potential implications of declining aragonite saturation |
title_full |
Comparison of the shell structure of two tropical Thecosomata (Creseis acicula and Diacavolinia longirostris) from 1963 to 2009: potential implications of declining aragonite saturation |
title_fullStr |
Comparison of the shell structure of two tropical Thecosomata (Creseis acicula and Diacavolinia longirostris) from 1963 to 2009: potential implications of declining aragonite saturation |
title_full_unstemmed |
Comparison of the shell structure of two tropical Thecosomata (Creseis acicula and Diacavolinia longirostris) from 1963 to 2009: potential implications of declining aragonite saturation |
title_sort |
comparison of the shell structure of two tropical thecosomata (creseis acicula and diacavolinia longirostris) from 1963 to 2009: potential implications of declining aragonite saturation |
publisher |
Oxford University Press |
publishDate |
2012 |
url |
http://icesjms.oxfordjournals.org/cgi/content/short/69/3/465 https://doi.org/10.1093/icesjms/fsr171 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
http://icesjms.oxfordjournals.org/cgi/content/short/69/3/465 http://dx.doi.org/10.1093/icesjms/fsr171 |
op_rights |
Copyright (C) 2012, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer |
op_doi |
https://doi.org/10.1093/icesjms/fsr171 |
container_title |
ICES Journal of Marine Science |
container_volume |
69 |
container_issue |
3 |
container_start_page |
465 |
op_container_end_page |
474 |
_version_ |
1766157573884477440 |