Sea urchin reproductive performance in a changing ocean: poor males improve while good males worsen in response to ocean acidification
Ocean acidification (OA) is predicted to be a major driver of ocean biodiversity change. At projected rates of change, sensitive marine taxa may not have time to adapt. Their persistence may depend on pre-existing inter-individual variability. We investigated individual male reproductive performance...
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ftpubmed:oai:pubmedcentral.nih.gov:6661356 2023-05-15T17:50:29+02:00 Sea urchin reproductive performance in a changing ocean: poor males improve while good males worsen in response to ocean acidification Smith, Kathryn E. Byrne, Maria Deaker, Dione Hird, Cameron M. Nielson, Clara Wilson-McNeal, Alice Lewis, Ceri 2019-07-24 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6661356/ http://www.ncbi.nlm.nih.gov/pubmed/31337311 https://doi.org/10.1098/rspb.2019.0785 en eng The Royal Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6661356/ http://www.ncbi.nlm.nih.gov/pubmed/31337311 http://dx.doi.org/10.1098/rspb.2019.0785 © 2019 The Authors. http://creativecommons.org/licenses/by/4.0/ Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. CC-BY Global Change and Conservation Text 2019 ftpubmed https://doi.org/10.1098/rspb.2019.0785 2019-08-04T01:06:51Z Ocean acidification (OA) is predicted to be a major driver of ocean biodiversity change. At projected rates of change, sensitive marine taxa may not have time to adapt. Their persistence may depend on pre-existing inter-individual variability. We investigated individual male reproductive performance under present-day and OA conditions using two representative broadcast spawners, the sea urchins Lytechinus pictus and Heliocidaris erythrogramma. Under the non-competitive individual ejaculate scenario, we examined sperm functional parameters (e.g. swimming speed, motility) and their relationship with fertilization success under current and near-future OA conditions. Significant inter-individual differences in almost every parameter measured were identified. Importantly, we observed strong inverse relationships between individual fertilization success rate under current conditions and change in fertilization success under OA. Individuals with a high fertilization success under current conditions had reduced fertilization under OA, while individuals with a low fertilization success under current conditions improved. Change in fertilization success ranged from −67% to +114% across individuals. Our results demonstrate that while average population fertilization rates remain similar under OA and present-day conditions, the contribution by different males to the population significantly shifts, with implications for how selection will operate in a future ocean. Text Ocean acidification PubMed Central (PMC) Proceedings of the Royal Society B: Biological Sciences 286 1907 20190785 |
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ftpubmed |
language |
English |
topic |
Global Change and Conservation |
spellingShingle |
Global Change and Conservation Smith, Kathryn E. Byrne, Maria Deaker, Dione Hird, Cameron M. Nielson, Clara Wilson-McNeal, Alice Lewis, Ceri Sea urchin reproductive performance in a changing ocean: poor males improve while good males worsen in response to ocean acidification |
topic_facet |
Global Change and Conservation |
description |
Ocean acidification (OA) is predicted to be a major driver of ocean biodiversity change. At projected rates of change, sensitive marine taxa may not have time to adapt. Their persistence may depend on pre-existing inter-individual variability. We investigated individual male reproductive performance under present-day and OA conditions using two representative broadcast spawners, the sea urchins Lytechinus pictus and Heliocidaris erythrogramma. Under the non-competitive individual ejaculate scenario, we examined sperm functional parameters (e.g. swimming speed, motility) and their relationship with fertilization success under current and near-future OA conditions. Significant inter-individual differences in almost every parameter measured were identified. Importantly, we observed strong inverse relationships between individual fertilization success rate under current conditions and change in fertilization success under OA. Individuals with a high fertilization success under current conditions had reduced fertilization under OA, while individuals with a low fertilization success under current conditions improved. Change in fertilization success ranged from −67% to +114% across individuals. Our results demonstrate that while average population fertilization rates remain similar under OA and present-day conditions, the contribution by different males to the population significantly shifts, with implications for how selection will operate in a future ocean. |
format |
Text |
author |
Smith, Kathryn E. Byrne, Maria Deaker, Dione Hird, Cameron M. Nielson, Clara Wilson-McNeal, Alice Lewis, Ceri |
author_facet |
Smith, Kathryn E. Byrne, Maria Deaker, Dione Hird, Cameron M. Nielson, Clara Wilson-McNeal, Alice Lewis, Ceri |
author_sort |
Smith, Kathryn E. |
title |
Sea urchin reproductive performance in a changing ocean: poor males improve while good males worsen in response to ocean acidification |
title_short |
Sea urchin reproductive performance in a changing ocean: poor males improve while good males worsen in response to ocean acidification |
title_full |
Sea urchin reproductive performance in a changing ocean: poor males improve while good males worsen in response to ocean acidification |
title_fullStr |
Sea urchin reproductive performance in a changing ocean: poor males improve while good males worsen in response to ocean acidification |
title_full_unstemmed |
Sea urchin reproductive performance in a changing ocean: poor males improve while good males worsen in response to ocean acidification |
title_sort |
sea urchin reproductive performance in a changing ocean: poor males improve while good males worsen in response to ocean acidification |
publisher |
The Royal Society |
publishDate |
2019 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6661356/ http://www.ncbi.nlm.nih.gov/pubmed/31337311 https://doi.org/10.1098/rspb.2019.0785 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6661356/ http://www.ncbi.nlm.nih.gov/pubmed/31337311 http://dx.doi.org/10.1098/rspb.2019.0785 |
op_rights |
© 2019 The Authors. http://creativecommons.org/licenses/by/4.0/ Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1098/rspb.2019.0785 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
286 |
container_issue |
1907 |
container_start_page |
20190785 |
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1766157252075454464 |