In situ developmental responses of tropical sea urchin larvae to ocean acidification conditions at naturally elevated pCO2 vent sites
Laboratory experiments suggest that calcifying developmental stages of marine invertebrates may be the most ocean acidification (OA)-sensitive life-history stage and represent a life-history bottleneck. To better extrapolate laboratory findings to future OA conditions, developmental responses in sea...
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ftpubmed:oai:pubmedcentral.nih.gov:5136578 2023-05-15T17:50:43+02:00 In situ developmental responses of tropical sea urchin larvae to ocean acidification conditions at naturally elevated pCO2 vent sites Lamare, Miles D. Liddy, Michelle Uthicke, Sven 2016-11-30 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5136578/ http://www.ncbi.nlm.nih.gov/pubmed/27903867 https://doi.org/10.1098/rspb.2016.1506 en eng The Royal Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5136578/ http://www.ncbi.nlm.nih.gov/pubmed/27903867 http://dx.doi.org/10.1098/rspb.2016.1506 © 2016 The Author(s) http://royalsocietypublishing.org/licence Published by the Royal Society. All rights reserved. Research Articles Text 2016 ftpubmed https://doi.org/10.1098/rspb.2016.1506 2017-12-03T01:09:50Z Laboratory experiments suggest that calcifying developmental stages of marine invertebrates may be the most ocean acidification (OA)-sensitive life-history stage and represent a life-history bottleneck. To better extrapolate laboratory findings to future OA conditions, developmental responses in sea urchin embryos/larvae were compared under ecologically relevant in situ exposures on vent-elevated pCO2 and ambient pCO2 coral reefs in Papua New Guinea. Echinometra embryos/larvae were reared in meshed chambers moored in arrays on either venting reefs or adjacent non-vent reefs. After 24 and 48 h, larval development and morphology were quantified. Compared with controls (mean pH(T) = 7.89–7.92), larvae developing in elevated pCO2 vent conditions (pH(T) = 7.50–7.72) displayed a significant reduction in size and increased abnormality, with a significant correlation of seawater pH with both larval size and larval asymmetry across all experiments. Reciprocal transplants (embryos from vent adults transplanted to control conditions, and vice versa) were also undertaken to identify if adult acclimatization can translate resilience to offspring (i.e. transgenerational processes). Embryos originating from vent adults were, however, no more tolerant to reduced pH. Sea temperature and chlorophyll-a concentrations (i.e. larval nutrition) did not contribute to difference in larval size, but abnormality was correlated with chlorophyll levels. This study is the first to examine the response of marine larvae to OA scenarios in the natural environment where, importantly, we found that stunted and abnormal development observed in situ are consistent with laboratory observations reported in sea urchins, in both the direction and magnitude of the response. Text Ocean acidification PubMed Central (PMC) Proceedings of the Royal Society B: Biological Sciences 283 1843 20161506 |
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Research Articles Lamare, Miles D. Liddy, Michelle Uthicke, Sven In situ developmental responses of tropical sea urchin larvae to ocean acidification conditions at naturally elevated pCO2 vent sites |
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Research Articles |
description |
Laboratory experiments suggest that calcifying developmental stages of marine invertebrates may be the most ocean acidification (OA)-sensitive life-history stage and represent a life-history bottleneck. To better extrapolate laboratory findings to future OA conditions, developmental responses in sea urchin embryos/larvae were compared under ecologically relevant in situ exposures on vent-elevated pCO2 and ambient pCO2 coral reefs in Papua New Guinea. Echinometra embryos/larvae were reared in meshed chambers moored in arrays on either venting reefs or adjacent non-vent reefs. After 24 and 48 h, larval development and morphology were quantified. Compared with controls (mean pH(T) = 7.89–7.92), larvae developing in elevated pCO2 vent conditions (pH(T) = 7.50–7.72) displayed a significant reduction in size and increased abnormality, with a significant correlation of seawater pH with both larval size and larval asymmetry across all experiments. Reciprocal transplants (embryos from vent adults transplanted to control conditions, and vice versa) were also undertaken to identify if adult acclimatization can translate resilience to offspring (i.e. transgenerational processes). Embryos originating from vent adults were, however, no more tolerant to reduced pH. Sea temperature and chlorophyll-a concentrations (i.e. larval nutrition) did not contribute to difference in larval size, but abnormality was correlated with chlorophyll levels. This study is the first to examine the response of marine larvae to OA scenarios in the natural environment where, importantly, we found that stunted and abnormal development observed in situ are consistent with laboratory observations reported in sea urchins, in both the direction and magnitude of the response. |
format |
Text |
author |
Lamare, Miles D. Liddy, Michelle Uthicke, Sven |
author_facet |
Lamare, Miles D. Liddy, Michelle Uthicke, Sven |
author_sort |
Lamare, Miles D. |
title |
In situ developmental responses of tropical sea urchin larvae to ocean acidification conditions at naturally elevated pCO2 vent sites |
title_short |
In situ developmental responses of tropical sea urchin larvae to ocean acidification conditions at naturally elevated pCO2 vent sites |
title_full |
In situ developmental responses of tropical sea urchin larvae to ocean acidification conditions at naturally elevated pCO2 vent sites |
title_fullStr |
In situ developmental responses of tropical sea urchin larvae to ocean acidification conditions at naturally elevated pCO2 vent sites |
title_full_unstemmed |
In situ developmental responses of tropical sea urchin larvae to ocean acidification conditions at naturally elevated pCO2 vent sites |
title_sort |
in situ developmental responses of tropical sea urchin larvae to ocean acidification conditions at naturally elevated pco2 vent sites |
publisher |
The Royal Society |
publishDate |
2016 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5136578/ http://www.ncbi.nlm.nih.gov/pubmed/27903867 https://doi.org/10.1098/rspb.2016.1506 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5136578/ http://www.ncbi.nlm.nih.gov/pubmed/27903867 http://dx.doi.org/10.1098/rspb.2016.1506 |
op_rights |
© 2016 The Author(s) http://royalsocietypublishing.org/licence Published by the Royal Society. All rights reserved. |
op_doi |
https://doi.org/10.1098/rspb.2016.1506 |
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Proceedings of the Royal Society B: Biological Sciences |
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283 |
container_issue |
1843 |
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20161506 |
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1766157585138843648 |