Seawater carbonate chemistry in Ischia, Italy, 2008
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 years1. The oceans are a principal sink for anthropogenic CO2 where it is estimated to have cau...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.819633 2023-05-15T17:50:19+02:00 Seawater carbonate chemistry in Ischia, Italy, 2008 Hall-Spencer, Jason M Rodolfo-Metalpa, Riccardo Martin, Sophie Ransome, Emma Fine, M Turner, Suzanne M Rowley, Sonia J Tedesco, Dario Buia, Maria-Cristina LATITUDE: 40.730556 * LONGITUDE: 13.962778 2008-09-23 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.819633 https://doi.org/10.1594/PANGAEA.819633 en eng PANGAEA Hall-Spencer, Jason M; Rodolfo-Metalpa, Riccardo; Martin, Sophie; Ransome, Emma; Fine, M; Turner, Suzanne M; Rowley, Sonia J; Tedesco, Dario; Buia, Maria-Cristina (2008): Volcanic carbon dioxide vents show ecosystem effects of ocean acidification. Nature, 454, 96-99, https://doi.org/10.1038/nature07051 https://doi.pangaea.de/10.1594/PANGAEA.819633 https://doi.org/10.1594/PANGAEA.819633 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY EPOCA European Project on Ocean Acidification Hall-Spencer_etal_08_ST2A Hall-Spencer_etal_08_ST5 Mediterranean Sea OBSE Observation Dataset 2008 ftpangaea https://doi.org/10.1594/PANGAEA.819633 https://doi.org/10.1038/nature07051 2023-01-20T07:33:08Z 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 years1. 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. 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 ecosystem4, 5. 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. Dataset Ocean acidification PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(13.962778,13.962778,40.730556,40.730556) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
EPOCA European Project on Ocean Acidification Hall-Spencer_etal_08_ST2A Hall-Spencer_etal_08_ST5 Mediterranean Sea OBSE Observation |
spellingShingle |
EPOCA European Project on Ocean Acidification Hall-Spencer_etal_08_ST2A Hall-Spencer_etal_08_ST5 Mediterranean Sea OBSE Observation Hall-Spencer, Jason M Rodolfo-Metalpa, Riccardo Martin, Sophie Ransome, Emma Fine, M Turner, Suzanne M Rowley, Sonia J Tedesco, Dario Buia, Maria-Cristina Seawater carbonate chemistry in Ischia, Italy, 2008 |
topic_facet |
EPOCA European Project on Ocean Acidification Hall-Spencer_etal_08_ST2A Hall-Spencer_etal_08_ST5 Mediterranean Sea OBSE Observation |
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 years1. 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. 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 ecosystem4, 5. 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. |
format |
Dataset |
author |
Hall-Spencer, Jason M Rodolfo-Metalpa, Riccardo Martin, Sophie Ransome, Emma Fine, M Turner, Suzanne M Rowley, Sonia J Tedesco, Dario Buia, Maria-Cristina |
author_facet |
Hall-Spencer, Jason M Rodolfo-Metalpa, Riccardo Martin, Sophie Ransome, Emma Fine, M Turner, Suzanne M Rowley, Sonia J Tedesco, Dario Buia, Maria-Cristina |
author_sort |
Hall-Spencer, Jason M |
title |
Seawater carbonate chemistry in Ischia, Italy, 2008 |
title_short |
Seawater carbonate chemistry in Ischia, Italy, 2008 |
title_full |
Seawater carbonate chemistry in Ischia, Italy, 2008 |
title_fullStr |
Seawater carbonate chemistry in Ischia, Italy, 2008 |
title_full_unstemmed |
Seawater carbonate chemistry in Ischia, Italy, 2008 |
title_sort |
seawater carbonate chemistry in ischia, italy, 2008 |
publisher |
PANGAEA |
publishDate |
2008 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.819633 https://doi.org/10.1594/PANGAEA.819633 |
op_coverage |
LATITUDE: 40.730556 * LONGITUDE: 13.962778 |
long_lat |
ENVELOPE(13.962778,13.962778,40.730556,40.730556) |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
Hall-Spencer, Jason M; Rodolfo-Metalpa, Riccardo; Martin, Sophie; Ransome, Emma; Fine, M; Turner, Suzanne M; Rowley, Sonia J; Tedesco, Dario; Buia, Maria-Cristina (2008): Volcanic carbon dioxide vents show ecosystem effects of ocean acidification. Nature, 454, 96-99, https://doi.org/10.1038/nature07051 https://doi.pangaea.de/10.1594/PANGAEA.819633 https://doi.org/10.1594/PANGAEA.819633 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.819633 https://doi.org/10.1038/nature07051 |
_version_ |
1766157033559556096 |