The effects of temperature and pH on the reproductive ecology of sand dollars and sea urchins: Impacts on sperm swimming and fertilization
In an era of climate change, impacts on the marine environment include warming and ocean acidification. These effects can be amplified in shallow coastal regions where conditions often fluctuate widely. This type of environmental variation is potentially important for many nearshore species that are...
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ftpubmed:oai:pubmedcentral.nih.gov:9714736 2023-05-15T17:51:33+02:00 The effects of temperature and pH on the reproductive ecology of sand dollars and sea urchins: Impacts on sperm swimming and fertilization Leuchtenberger, Sara Grace Daleo, Maris Gullickson, Peter Delgado, Andi Lo, Carly Nishizaki, Michael T. 2022-12-01 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9714736/ https://doi.org/10.1371/journal.pone.0276134 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9714736/ http://dx.doi.org/10.1371/journal.pone.0276134 © 2022 Leuchtenberger et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. CC-BY PLoS One Research Article Text 2022 ftpubmed https://doi.org/10.1371/journal.pone.0276134 2022-12-04T02:20:05Z In an era of climate change, impacts on the marine environment include warming and ocean acidification. These effects can be amplified in shallow coastal regions where conditions often fluctuate widely. This type of environmental variation is potentially important for many nearshore species that are broadcast spawners, releasing eggs and sperm into the water column for fertilization. We conducted two experiments to investigate: 1) the impact of water temperature on sperm swimming characteristics and fertilization rate in sand dollars (Dendraster excentricus; temperatures 8-38°C) and sea urchins (Mesocentrotus franciscanus; temperatures 8-28°C) and; 2) the combined effects of multiple stressors (water temperature and pH) on these traits in sand dollars. We quantify thermal performance curves showing that sand dollar fertilization rates, sperm swimming velocities, and sperm motility display remarkably wide thermal breadths relative to red urchins, perhaps reflecting the wider range of water temperatures experienced by sand dollars at our field sites. For sand dollars, both temperature (8, 16, 24°C) and pH (7.1, 7.5, 7.9) affected fertilization but only temperature influenced sperm swimming velocity and motility. Although sperm velocities and fertilization were positively correlated, our fertilization kinetics model dramatically overestimated measured rates and this discrepancy was most pronounced under extreme temperature and pH conditions. Our results suggest that environmental stressors like temperature and pH likely impair aspects of the reproductive process beyond simple sperm swimming behavior. Text Ocean acidification PubMed Central (PMC) PLOS ONE 17 12 e0276134 |
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Research Article Leuchtenberger, Sara Grace Daleo, Maris Gullickson, Peter Delgado, Andi Lo, Carly Nishizaki, Michael T. The effects of temperature and pH on the reproductive ecology of sand dollars and sea urchins: Impacts on sperm swimming and fertilization |
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Research Article |
description |
In an era of climate change, impacts on the marine environment include warming and ocean acidification. These effects can be amplified in shallow coastal regions where conditions often fluctuate widely. This type of environmental variation is potentially important for many nearshore species that are broadcast spawners, releasing eggs and sperm into the water column for fertilization. We conducted two experiments to investigate: 1) the impact of water temperature on sperm swimming characteristics and fertilization rate in sand dollars (Dendraster excentricus; temperatures 8-38°C) and sea urchins (Mesocentrotus franciscanus; temperatures 8-28°C) and; 2) the combined effects of multiple stressors (water temperature and pH) on these traits in sand dollars. We quantify thermal performance curves showing that sand dollar fertilization rates, sperm swimming velocities, and sperm motility display remarkably wide thermal breadths relative to red urchins, perhaps reflecting the wider range of water temperatures experienced by sand dollars at our field sites. For sand dollars, both temperature (8, 16, 24°C) and pH (7.1, 7.5, 7.9) affected fertilization but only temperature influenced sperm swimming velocity and motility. Although sperm velocities and fertilization were positively correlated, our fertilization kinetics model dramatically overestimated measured rates and this discrepancy was most pronounced under extreme temperature and pH conditions. Our results suggest that environmental stressors like temperature and pH likely impair aspects of the reproductive process beyond simple sperm swimming behavior. |
format |
Text |
author |
Leuchtenberger, Sara Grace Daleo, Maris Gullickson, Peter Delgado, Andi Lo, Carly Nishizaki, Michael T. |
author_facet |
Leuchtenberger, Sara Grace Daleo, Maris Gullickson, Peter Delgado, Andi Lo, Carly Nishizaki, Michael T. |
author_sort |
Leuchtenberger, Sara Grace |
title |
The effects of temperature and pH on the reproductive ecology of sand dollars and sea urchins: Impacts on sperm swimming and fertilization |
title_short |
The effects of temperature and pH on the reproductive ecology of sand dollars and sea urchins: Impacts on sperm swimming and fertilization |
title_full |
The effects of temperature and pH on the reproductive ecology of sand dollars and sea urchins: Impacts on sperm swimming and fertilization |
title_fullStr |
The effects of temperature and pH on the reproductive ecology of sand dollars and sea urchins: Impacts on sperm swimming and fertilization |
title_full_unstemmed |
The effects of temperature and pH on the reproductive ecology of sand dollars and sea urchins: Impacts on sperm swimming and fertilization |
title_sort |
effects of temperature and ph on the reproductive ecology of sand dollars and sea urchins: impacts on sperm swimming and fertilization |
publisher |
Public Library of Science |
publishDate |
2022 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9714736/ https://doi.org/10.1371/journal.pone.0276134 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
PLoS One |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9714736/ http://dx.doi.org/10.1371/journal.pone.0276134 |
op_rights |
© 2022 Leuchtenberger et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
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CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0276134 |
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PLOS ONE |
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17 |
container_issue |
12 |
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e0276134 |
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1766158736371482624 |