Effect of Carbonate Chemistry Alteration on the Early Embryonic Development of the Pacific Oyster (Crassostrea gigas)
Ocean acidification, due to anthropogenic CO2 absorption by the ocean, may have profound impacts on marine biota. Calcareous organisms are expected to be particularly sensitive due to the decreasing availability of carbonate ions driven by decreasing pH levels. Recently, some studies focused on the...
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ftpubmed:oai:pubmedcentral.nih.gov:3157905 2023-05-15T15:58:16+02:00 Effect of Carbonate Chemistry Alteration on the Early Embryonic Development of the Pacific Oyster (Crassostrea gigas) Gazeau, Frédéric Gattuso, Jean-Pierre Greaves, Mervyn Elderfield, Henry Peene, Jan Heip, Carlo H. R. Middelburg, Jack J. 2011-08-10 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3157905 http://www.ncbi.nlm.nih.gov/pubmed/21860666 https://doi.org/10.1371/journal.pone.0023010 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3157905 http://www.ncbi.nlm.nih.gov/pubmed/21860666 http://dx.doi.org/10.1371/journal.pone.0023010 Gazeau 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. CC-BY Research Article Text 2011 ftpubmed https://doi.org/10.1371/journal.pone.0023010 2013-09-03T18:45:49Z Ocean acidification, due to anthropogenic CO2 absorption by the ocean, may have profound impacts on marine biota. Calcareous organisms are expected to be particularly sensitive due to the decreasing availability of carbonate ions driven by decreasing pH levels. Recently, some studies focused on the early life stages of mollusks that are supposedly more sensitive to environmental disturbances than adult stages. Although these studies have shown decreased growth rates and increased proportions of abnormal development under low pH conditions, they did not allow attribution to pH induced changes in physiology or changes due to a decrease in aragonite saturation state. This study aims to assess the impact of several carbonate-system perturbations on the growth of Pacific oyster (Crassostrea gigas) larvae during the first 3 days of development (until shelled D-veliger larvae). Seawater with five different chemistries was obtained by separately manipulating pH, total alkalinity and aragonite saturation state (calcium addition). Results showed that the developmental success and growth rates were not directly affected by changes in pH or aragonite saturation state but were highly correlated with the availability of carbonate ions. In contrast to previous studies, both developmental success into viable D-shaped larvae and growth rates were not significantly altered as long as carbonate ion concentrations were above aragonite saturation levels, but they strongly decreased below saturation levels. These results suggest that the mechanisms used by these organisms to regulate calcification rates are not efficient enough to compensate for the low availability of carbonate ions under corrosive conditions. Text Crassostrea gigas Ocean acidification Pacific oyster PubMed Central (PMC) Pacific PLoS ONE 6 8 e23010 |
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Research Article Gazeau, Frédéric Gattuso, Jean-Pierre Greaves, Mervyn Elderfield, Henry Peene, Jan Heip, Carlo H. R. Middelburg, Jack J. Effect of Carbonate Chemistry Alteration on the Early Embryonic Development of the Pacific Oyster (Crassostrea gigas) |
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Research Article |
description |
Ocean acidification, due to anthropogenic CO2 absorption by the ocean, may have profound impacts on marine biota. Calcareous organisms are expected to be particularly sensitive due to the decreasing availability of carbonate ions driven by decreasing pH levels. Recently, some studies focused on the early life stages of mollusks that are supposedly more sensitive to environmental disturbances than adult stages. Although these studies have shown decreased growth rates and increased proportions of abnormal development under low pH conditions, they did not allow attribution to pH induced changes in physiology or changes due to a decrease in aragonite saturation state. This study aims to assess the impact of several carbonate-system perturbations on the growth of Pacific oyster (Crassostrea gigas) larvae during the first 3 days of development (until shelled D-veliger larvae). Seawater with five different chemistries was obtained by separately manipulating pH, total alkalinity and aragonite saturation state (calcium addition). Results showed that the developmental success and growth rates were not directly affected by changes in pH or aragonite saturation state but were highly correlated with the availability of carbonate ions. In contrast to previous studies, both developmental success into viable D-shaped larvae and growth rates were not significantly altered as long as carbonate ion concentrations were above aragonite saturation levels, but they strongly decreased below saturation levels. These results suggest that the mechanisms used by these organisms to regulate calcification rates are not efficient enough to compensate for the low availability of carbonate ions under corrosive conditions. |
format |
Text |
author |
Gazeau, Frédéric Gattuso, Jean-Pierre Greaves, Mervyn Elderfield, Henry Peene, Jan Heip, Carlo H. R. Middelburg, Jack J. |
author_facet |
Gazeau, Frédéric Gattuso, Jean-Pierre Greaves, Mervyn Elderfield, Henry Peene, Jan Heip, Carlo H. R. Middelburg, Jack J. |
author_sort |
Gazeau, Frédéric |
title |
Effect of Carbonate Chemistry Alteration on the Early Embryonic Development of the Pacific Oyster (Crassostrea gigas) |
title_short |
Effect of Carbonate Chemistry Alteration on the Early Embryonic Development of the Pacific Oyster (Crassostrea gigas) |
title_full |
Effect of Carbonate Chemistry Alteration on the Early Embryonic Development of the Pacific Oyster (Crassostrea gigas) |
title_fullStr |
Effect of Carbonate Chemistry Alteration on the Early Embryonic Development of the Pacific Oyster (Crassostrea gigas) |
title_full_unstemmed |
Effect of Carbonate Chemistry Alteration on the Early Embryonic Development of the Pacific Oyster (Crassostrea gigas) |
title_sort |
effect of carbonate chemistry alteration on the early embryonic development of the pacific oyster (crassostrea gigas) |
publisher |
Public Library of Science |
publishDate |
2011 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3157905 http://www.ncbi.nlm.nih.gov/pubmed/21860666 https://doi.org/10.1371/journal.pone.0023010 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Crassostrea gigas Ocean acidification Pacific oyster |
genre_facet |
Crassostrea gigas Ocean acidification Pacific oyster |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3157905 http://www.ncbi.nlm.nih.gov/pubmed/21860666 http://dx.doi.org/10.1371/journal.pone.0023010 |
op_rights |
Gazeau 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_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0023010 |
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PLoS ONE |
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6 |
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8 |
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e23010 |
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