Volcanic carbon dioxide vents show ecosystem effects of ocean acidification
The atmospheric partial pressure of carbon dioxide (pCO2) will almost certainly be double that of pre-industrial levels by 2100 and will be considerably higher than at any time during the past few million years. The oceans are a principal sink for anthropogenic CO2 where it is estimated to have caus...
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ftuncampaniairis:oai:iris.unicampania.it:11591/186497 2024-04-14T08:17:39+00:00 Volcanic carbon dioxide vents show ecosystem effects of ocean acidification HALL SPENCER J. RODOLFO METALPA R. MARTIN S. RANSOME E. FINE M. TURNER S. ROWLEY S. BUIA M. TEDESCO, Dario HALL SPENCER, J. RODOLFO METALPA, R. Martin, S. Ransome, E. Fine, M. Turner, S. Rowley, S. Tedesco, Dario Buia, M. 2008 http://hdl.handle.net/11591/186497 https://doi.org/10.1038/nature07051 http://www.nature.com/nature/index.html eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000257308300044 volume:454 issue:7200 firstpage:96 lastpage:99 numberofpages:4 journal:NATURE http://hdl.handle.net/11591/186497 doi:10.1038/nature07051 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-46449113551 http://www.nature.com/nature/index.html acidificazione simulazione anidride carbonica info:eu-repo/semantics/article 2008 ftuncampaniairis https://doi.org/10.1038/nature07051 2024-03-21T16:01:23Z The atmospheric partial pressure of carbon dioxide (pCO2) will almost certainly be double that of pre-industrial levels by 2100 and will be considerably higher than at any time during the past few million years. The oceans are a principal sink for anthropogenic CO2 where it is estimated to have caused a 30% increase in the concentration of H+ in ocean surface waters since the early 1900s and may lead to a drop in seawater pH of up to 0.5 units by 2100 (refs 2, 3). Our understanding of how increased ocean acidity may affect marine ecosystems is at present very limited as almost all studies have been in vitro, short-term, rapid perturbation experiments on isolated elements of the ecosystem. Here we show the effects of acidification on benthic ecosystems at shallow coastal sites where volcanic CO2 vents lower the pH of the water column. Along gradients of normal pH (8.1-8.2) to lowered pH (mean 7.8-7.9, minimum 7.4-7.5), typical rocky shore communities with abundant calcareous organisms shifted to communities lacking scleractinian corals with significant reductions in sea urchin and coralline algal abundance. To our knowledge, this is the first ecosystem-scale validation of predictions that these important groups of organisms are susceptible to elevated amounts of pCO2. Sea-grass production was highest in an area at mean pH 7.6 (1,827 μatm pCO2) where coralline algal biomass was significantly reduced and gastropod shells were dissolving due to periods of carbonate sub-saturation. The species populating the vent sites comprise a suite of organisms that are resilient to naturally high concentrations of pCO2 and indicate that ocean acidification may benefit highly invasive non-native algal species. Our results provide the first in situ insights into how shallow water marine communities might change when susceptible organisms are removed owing to ocean acidification. ©2008 Macmillan Publishers Limited. All rights reserved. Article in Journal/Newspaper Ocean acidification Università degli Studi della Campania "Luigi Vanvitelli": CINECA IRIS V: Nature 454 7200 96 99 |
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Open Polar |
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Università degli Studi della Campania "Luigi Vanvitelli": CINECA IRIS V: |
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ftuncampaniairis |
language |
English |
topic |
acidificazione simulazione anidride carbonica |
spellingShingle |
acidificazione simulazione anidride carbonica HALL SPENCER J. RODOLFO METALPA R. MARTIN S. RANSOME E. FINE M. TURNER S. ROWLEY S. BUIA M. TEDESCO, Dario Volcanic carbon dioxide vents show ecosystem effects of ocean acidification |
topic_facet |
acidificazione simulazione anidride carbonica |
description |
The atmospheric partial pressure of carbon dioxide (pCO2) will almost certainly be double that of pre-industrial levels by 2100 and will be considerably higher than at any time during the past few million years. The oceans are a principal sink for anthropogenic CO2 where it is estimated to have caused a 30% increase in the concentration of H+ in ocean surface waters since the early 1900s and may lead to a drop in seawater pH of up to 0.5 units by 2100 (refs 2, 3). Our understanding of how increased ocean acidity may affect marine ecosystems is at present very limited as almost all studies have been in vitro, short-term, rapid perturbation experiments on isolated elements of the ecosystem. Here we show the effects of acidification on benthic ecosystems at shallow coastal sites where volcanic CO2 vents lower the pH of the water column. Along gradients of normal pH (8.1-8.2) to lowered pH (mean 7.8-7.9, minimum 7.4-7.5), typical rocky shore communities with abundant calcareous organisms shifted to communities lacking scleractinian corals with significant reductions in sea urchin and coralline algal abundance. To our knowledge, this is the first ecosystem-scale validation of predictions that these important groups of organisms are susceptible to elevated amounts of pCO2. Sea-grass production was highest in an area at mean pH 7.6 (1,827 μatm pCO2) where coralline algal biomass was significantly reduced and gastropod shells were dissolving due to periods of carbonate sub-saturation. The species populating the vent sites comprise a suite of organisms that are resilient to naturally high concentrations of pCO2 and indicate that ocean acidification may benefit highly invasive non-native algal species. Our results provide the first in situ insights into how shallow water marine communities might change when susceptible organisms are removed owing to ocean acidification. ©2008 Macmillan Publishers Limited. All rights reserved. |
author2 |
HALL SPENCER, J. RODOLFO METALPA, R. Martin, S. Ransome, E. Fine, M. Turner, S. Rowley, S. Tedesco, Dario Buia, M. |
format |
Article in Journal/Newspaper |
author |
HALL SPENCER J. RODOLFO METALPA R. MARTIN S. RANSOME E. FINE M. TURNER S. ROWLEY S. BUIA M. TEDESCO, Dario |
author_facet |
HALL SPENCER J. RODOLFO METALPA R. MARTIN S. RANSOME E. FINE M. TURNER S. ROWLEY S. BUIA M. TEDESCO, Dario |
author_sort |
HALL SPENCER J. |
title |
Volcanic carbon dioxide vents show ecosystem effects of ocean acidification |
title_short |
Volcanic carbon dioxide vents show ecosystem effects of ocean acidification |
title_full |
Volcanic carbon dioxide vents show ecosystem effects of ocean acidification |
title_fullStr |
Volcanic carbon dioxide vents show ecosystem effects of ocean acidification |
title_full_unstemmed |
Volcanic carbon dioxide vents show ecosystem effects of ocean acidification |
title_sort |
volcanic carbon dioxide vents show ecosystem effects of ocean acidification |
publishDate |
2008 |
url |
http://hdl.handle.net/11591/186497 https://doi.org/10.1038/nature07051 http://www.nature.com/nature/index.html |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000257308300044 volume:454 issue:7200 firstpage:96 lastpage:99 numberofpages:4 journal:NATURE http://hdl.handle.net/11591/186497 doi:10.1038/nature07051 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-46449113551 http://www.nature.com/nature/index.html |
op_doi |
https://doi.org/10.1038/nature07051 |
container_title |
Nature |
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454 |
container_issue |
7200 |
container_start_page |
96 |
op_container_end_page |
99 |
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1796316887470047232 |