Ocean acidification boosts reproduction in sea urchins to buffer against population collapse
Ocean acidification is forecast to drive a decline in populations of calcifying species, including sea urchins, particularly through its negative effects on reproduction and recruitment. Evidence for these predictions rests predominantly on laboratory experiments, which cannot fully incorporate the...
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ftands:oai:ands.org.au::2737674 2023-07-30T04:05:58+02:00 Ocean acidification boosts reproduction in sea urchins to buffer against population collapse Bayden Russell (hasCollector) Erin Pichler (hasCollector) Ivan Nagelkerken (hasCollector) Jonathan Y. S. Leung (hasCollector) Sean Connell (hasCollector) https://doi.org/10.25909/23626326.v1 https://researchdata.edu.au/ocean-acidification-boosts-population-collapse/2737674 unknown The University of Adelaide https://researchdata.edu.au/ocean-acidification-boosts-population-collapse/2737674 https://doi.org/10.25909/23626326.v1 University of Adelaide Figshare ocean acidification calcifiers indirect effects volcanic seeps sea urchin community dynamics dataset ftands https://doi.org/10.25909/23626326.v1 2023-07-17T22:33:36Z Ocean acidification is forecast to drive a decline in populations of calcifying species, including sea urchins, particularly through its negative effects on reproduction and recruitment. Evidence for these predictions rests predominantly on laboratory experiments, which cannot fully incorporate the influence of ecological complexity in the natural environment. Therefore, we used natural volcanic CO2 seeps on a temperate reef, to test the prediction that ocean acidification drives a decline in urchin reproductive potential across their naturally occurring densities. We observed the opposite of this prediction, with urchins showing an increase in per capita reproductive potential under elevated CO2, with this effect enhanced at the decreased urchin densities observed at the seeps. This influence on reproductive potential appears to be an indirect effect of CO2 enrichment boosting the nutritional value and abundance of their algal food. Hence, the commonly observed direct negative effects of elevated CO2 in the laboratory may be countered by such positive effects that can only be observed in the field. So, whilst ocean acidification might put pressure on vulnerable early life stages to drive population decline, as observed in the laboratory, our field observations suggest that increasing reproductive potential may buffer the magnitude of these declines to maintain population persistence. Therefore, this study highlights the duality of ocean acidification to potentially suppress population sizes, whilst facilitating population persistence. Dataset Ocean acidification Research Data Australia (Australian National Data Service - ANDS) |
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Open Polar |
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Research Data Australia (Australian National Data Service - ANDS) |
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ocean acidification calcifiers indirect effects volcanic seeps sea urchin community dynamics |
spellingShingle |
ocean acidification calcifiers indirect effects volcanic seeps sea urchin community dynamics Ocean acidification boosts reproduction in sea urchins to buffer against population collapse |
topic_facet |
ocean acidification calcifiers indirect effects volcanic seeps sea urchin community dynamics |
description |
Ocean acidification is forecast to drive a decline in populations of calcifying species, including sea urchins, particularly through its negative effects on reproduction and recruitment. Evidence for these predictions rests predominantly on laboratory experiments, which cannot fully incorporate the influence of ecological complexity in the natural environment. Therefore, we used natural volcanic CO2 seeps on a temperate reef, to test the prediction that ocean acidification drives a decline in urchin reproductive potential across their naturally occurring densities. We observed the opposite of this prediction, with urchins showing an increase in per capita reproductive potential under elevated CO2, with this effect enhanced at the decreased urchin densities observed at the seeps. This influence on reproductive potential appears to be an indirect effect of CO2 enrichment boosting the nutritional value and abundance of their algal food. Hence, the commonly observed direct negative effects of elevated CO2 in the laboratory may be countered by such positive effects that can only be observed in the field. So, whilst ocean acidification might put pressure on vulnerable early life stages to drive population decline, as observed in the laboratory, our field observations suggest that increasing reproductive potential may buffer the magnitude of these declines to maintain population persistence. Therefore, this study highlights the duality of ocean acidification to potentially suppress population sizes, whilst facilitating population persistence. |
author2 |
Bayden Russell (hasCollector) Erin Pichler (hasCollector) Ivan Nagelkerken (hasCollector) Jonathan Y. S. Leung (hasCollector) Sean Connell (hasCollector) |
format |
Dataset |
title |
Ocean acidification boosts reproduction in sea urchins to buffer against population collapse |
title_short |
Ocean acidification boosts reproduction in sea urchins to buffer against population collapse |
title_full |
Ocean acidification boosts reproduction in sea urchins to buffer against population collapse |
title_fullStr |
Ocean acidification boosts reproduction in sea urchins to buffer against population collapse |
title_full_unstemmed |
Ocean acidification boosts reproduction in sea urchins to buffer against population collapse |
title_sort |
ocean acidification boosts reproduction in sea urchins to buffer against population collapse |
publisher |
The University of Adelaide |
url |
https://doi.org/10.25909/23626326.v1 https://researchdata.edu.au/ocean-acidification-boosts-population-collapse/2737674 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
University of Adelaide Figshare |
op_relation |
https://researchdata.edu.au/ocean-acidification-boosts-population-collapse/2737674 https://doi.org/10.25909/23626326.v1 |
op_doi |
https://doi.org/10.25909/23626326.v1 |
_version_ |
1772818296519786496 |