Sensitivity of sea urchin fertilization to pH varies across a natural pH mosaic
In the coastal ocean, temporal fluctuations in pH vary dramatically across biogeographic ranges. How such spatial differences in pH variability regimes might shape ocean acidification resistance in marine species remains unknown. We assessed the pH sensitivity of the sea urchin Strongylocentrotus pu...
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ftpubmed:oai:pubmedcentral.nih.gov:5355180 2023-05-15T17:51:13+02:00 Sensitivity of sea urchin fertilization to pH varies across a natural pH mosaic Kapsenberg, Lydia Okamoto, Daniel K. Dutton, Jessica M. Hofmann, Gretchen E. 2017-02-12 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5355180/ https://doi.org/10.1002/ece3.2776 en eng John Wiley and Sons Inc. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5355180/ http://dx.doi.org/10.1002/ece3.2776 © 2017 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution (http://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. CC-BY Original Research Text 2017 ftpubmed https://doi.org/10.1002/ece3.2776 2017-03-26T01:12:18Z In the coastal ocean, temporal fluctuations in pH vary dramatically across biogeographic ranges. How such spatial differences in pH variability regimes might shape ocean acidification resistance in marine species remains unknown. We assessed the pH sensitivity of the sea urchin Strongylocentrotus purpuratus in the context of ocean pH variability. Using unique male–female pairs, originating from three sites with similar mean pH but different variability and frequency of low pH (pHT ≤ 7.8) exposures, fertilization was tested across a range of pH (pHT 7.61–8.03) and sperm concentrations. High fertilization success was maintained at low pH via a slight right shift in the fertilization function across sperm concentration. This pH effect differed by site. Urchins from the site with the narrowest pH variability regime exhibited the greatest pH sensitivity. At this site, mechanistic fertilization dynamics models support a decrease in sperm–egg interaction rate with decreasing pH. The site differences in pH sensitivity build upon recent evidence of local pH adaptation in S. purpuratus and highlight the need to incorporate environmental variability in the study of global change biology. Text Ocean acidification PubMed Central (PMC) Ecology and Evolution 7 6 1737 1750 |
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Original Research Kapsenberg, Lydia Okamoto, Daniel K. Dutton, Jessica M. Hofmann, Gretchen E. Sensitivity of sea urchin fertilization to pH varies across a natural pH mosaic |
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Original Research |
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In the coastal ocean, temporal fluctuations in pH vary dramatically across biogeographic ranges. How such spatial differences in pH variability regimes might shape ocean acidification resistance in marine species remains unknown. We assessed the pH sensitivity of the sea urchin Strongylocentrotus purpuratus in the context of ocean pH variability. Using unique male–female pairs, originating from three sites with similar mean pH but different variability and frequency of low pH (pHT ≤ 7.8) exposures, fertilization was tested across a range of pH (pHT 7.61–8.03) and sperm concentrations. High fertilization success was maintained at low pH via a slight right shift in the fertilization function across sperm concentration. This pH effect differed by site. Urchins from the site with the narrowest pH variability regime exhibited the greatest pH sensitivity. At this site, mechanistic fertilization dynamics models support a decrease in sperm–egg interaction rate with decreasing pH. The site differences in pH sensitivity build upon recent evidence of local pH adaptation in S. purpuratus and highlight the need to incorporate environmental variability in the study of global change biology. |
format |
Text |
author |
Kapsenberg, Lydia Okamoto, Daniel K. Dutton, Jessica M. Hofmann, Gretchen E. |
author_facet |
Kapsenberg, Lydia Okamoto, Daniel K. Dutton, Jessica M. Hofmann, Gretchen E. |
author_sort |
Kapsenberg, Lydia |
title |
Sensitivity of sea urchin fertilization to pH varies across a natural pH mosaic |
title_short |
Sensitivity of sea urchin fertilization to pH varies across a natural pH mosaic |
title_full |
Sensitivity of sea urchin fertilization to pH varies across a natural pH mosaic |
title_fullStr |
Sensitivity of sea urchin fertilization to pH varies across a natural pH mosaic |
title_full_unstemmed |
Sensitivity of sea urchin fertilization to pH varies across a natural pH mosaic |
title_sort |
sensitivity of sea urchin fertilization to ph varies across a natural ph mosaic |
publisher |
John Wiley and Sons Inc. |
publishDate |
2017 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5355180/ https://doi.org/10.1002/ece3.2776 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5355180/ http://dx.doi.org/10.1002/ece3.2776 |
op_rights |
© 2017 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution (http://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
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CC-BY |
op_doi |
https://doi.org/10.1002/ece3.2776 |
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Ecology and Evolution |
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7 |
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6 |
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1737 |
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1750 |
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1766158300741632000 |