CO2 leakage can cause loss of benthic biodiversity in submarine sands
One of the options to mitigate atmospheric CO2 increase is CO2 Capture and Storage in sub-seabed geological formations. Since predicting long-term storage security is difficult, different CO2 leakage scenarios and impacts on marine ecosystems require evaluation. Submarine CO2 vents may serve as natu...
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ftunivgent:oai:archive.ugent.be:8617022 2023-06-11T04:15:42+02:00 CO2 leakage can cause loss of benthic biodiversity in submarine sands Molari, Massimiliano Guilini, Katja Lins Pereira, Lidia Ramette, Alban Vanreusel, Ann 2019 application/pdf https://biblio.ugent.be/publication/8617022 http://hdl.handle.net/1854/LU-8617022 https://doi.org/10.1016/j.marenvres.2019.01.006 https://biblio.ugent.be/publication/8617022/file/8617024 eng eng https://biblio.ugent.be/publication/8617022 http://hdl.handle.net/1854/LU-8617022 http://dx.doi.org/10.1016/j.marenvres.2019.01.006 https://biblio.ugent.be/publication/8617022/file/8617024 Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) info:eu-repo/semantics/openAccess MARINE ENVIRONMENTAL RESEARCH ISSN: 0141-1136 Biology and Life Sciences Medicine and Health Sciences Benthos Bacteria Invertebrates Biodiversity CO2 vents Carbon capture and storage (CCS) Panarea island Mediterranean sea DEEP-SEA OCEAN ACIDIFICATION CARBON-DIOXIDE CLIMATE-CHANGE SEAWATER ACIDIFICATION COMMUNITY STRUCTURE MARINE ORGANISMS CYTOPLASMIC PH IN-SITU DIVERSITY journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2019 ftunivgent https://doi.org/10.1016/j.marenvres.2019.01.006 2023-05-10T22:37:16Z One of the options to mitigate atmospheric CO2 increase is CO2 Capture and Storage in sub-seabed geological formations. Since predicting long-term storage security is difficult, different CO2 leakage scenarios and impacts on marine ecosystems require evaluation. Submarine CO2 vents may serve as natural analogues and allow studying the effects of CO2 leakage in a holistic approach. At the study site east of Basiluzzo Islet off Panarea Island (Italy), gas emissions (90-99% CO2) occur at moderate flows (80-120 Lm(-2) h(-1)). We investigated the effects of acidified porewater conditions (pH(T) range: 5.5-7.7) on the diversity of benthic bacteria and invertebrates by sampling natural sediments in three subsequent years and by performing a transplantation experiment with a duration of one year, respectively. Both multiple years and one year of exposure to acidified porewater conditions reduced the number of benthic bacterial operational taxonomic units and invertebrate species diversity by 30-80%. Reduced biodiversity at the vent sites increased the temporal variability in bacterial and nematode community biomass, abundance and composition. While the release from CO2 exposure resulted in a full recovery of nematode species diversity within one year, bacterial diversity remained affected. Overall our findings showed that seawater acidification, induced by seafloor CO2 emissions, was responsible for loss of diversity across different size-classes of benthic organisms, which reduced community stability with potential relapses on ecosystem resilience. Article in Journal/Newspaper Ocean acidification Ghent University Academic Bibliography Marine Environmental Research 144 213 229 |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Biology and Life Sciences Medicine and Health Sciences Benthos Bacteria Invertebrates Biodiversity CO2 vents Carbon capture and storage (CCS) Panarea island Mediterranean sea DEEP-SEA OCEAN ACIDIFICATION CARBON-DIOXIDE CLIMATE-CHANGE SEAWATER ACIDIFICATION COMMUNITY STRUCTURE MARINE ORGANISMS CYTOPLASMIC PH IN-SITU DIVERSITY |
spellingShingle |
Biology and Life Sciences Medicine and Health Sciences Benthos Bacteria Invertebrates Biodiversity CO2 vents Carbon capture and storage (CCS) Panarea island Mediterranean sea DEEP-SEA OCEAN ACIDIFICATION CARBON-DIOXIDE CLIMATE-CHANGE SEAWATER ACIDIFICATION COMMUNITY STRUCTURE MARINE ORGANISMS CYTOPLASMIC PH IN-SITU DIVERSITY Molari, Massimiliano Guilini, Katja Lins Pereira, Lidia Ramette, Alban Vanreusel, Ann CO2 leakage can cause loss of benthic biodiversity in submarine sands |
topic_facet |
Biology and Life Sciences Medicine and Health Sciences Benthos Bacteria Invertebrates Biodiversity CO2 vents Carbon capture and storage (CCS) Panarea island Mediterranean sea DEEP-SEA OCEAN ACIDIFICATION CARBON-DIOXIDE CLIMATE-CHANGE SEAWATER ACIDIFICATION COMMUNITY STRUCTURE MARINE ORGANISMS CYTOPLASMIC PH IN-SITU DIVERSITY |
description |
One of the options to mitigate atmospheric CO2 increase is CO2 Capture and Storage in sub-seabed geological formations. Since predicting long-term storage security is difficult, different CO2 leakage scenarios and impacts on marine ecosystems require evaluation. Submarine CO2 vents may serve as natural analogues and allow studying the effects of CO2 leakage in a holistic approach. At the study site east of Basiluzzo Islet off Panarea Island (Italy), gas emissions (90-99% CO2) occur at moderate flows (80-120 Lm(-2) h(-1)). We investigated the effects of acidified porewater conditions (pH(T) range: 5.5-7.7) on the diversity of benthic bacteria and invertebrates by sampling natural sediments in three subsequent years and by performing a transplantation experiment with a duration of one year, respectively. Both multiple years and one year of exposure to acidified porewater conditions reduced the number of benthic bacterial operational taxonomic units and invertebrate species diversity by 30-80%. Reduced biodiversity at the vent sites increased the temporal variability in bacterial and nematode community biomass, abundance and composition. While the release from CO2 exposure resulted in a full recovery of nematode species diversity within one year, bacterial diversity remained affected. Overall our findings showed that seawater acidification, induced by seafloor CO2 emissions, was responsible for loss of diversity across different size-classes of benthic organisms, which reduced community stability with potential relapses on ecosystem resilience. |
format |
Article in Journal/Newspaper |
author |
Molari, Massimiliano Guilini, Katja Lins Pereira, Lidia Ramette, Alban Vanreusel, Ann |
author_facet |
Molari, Massimiliano Guilini, Katja Lins Pereira, Lidia Ramette, Alban Vanreusel, Ann |
author_sort |
Molari, Massimiliano |
title |
CO2 leakage can cause loss of benthic biodiversity in submarine sands |
title_short |
CO2 leakage can cause loss of benthic biodiversity in submarine sands |
title_full |
CO2 leakage can cause loss of benthic biodiversity in submarine sands |
title_fullStr |
CO2 leakage can cause loss of benthic biodiversity in submarine sands |
title_full_unstemmed |
CO2 leakage can cause loss of benthic biodiversity in submarine sands |
title_sort |
co2 leakage can cause loss of benthic biodiversity in submarine sands |
publishDate |
2019 |
url |
https://biblio.ugent.be/publication/8617022 http://hdl.handle.net/1854/LU-8617022 https://doi.org/10.1016/j.marenvres.2019.01.006 https://biblio.ugent.be/publication/8617022/file/8617024 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
MARINE ENVIRONMENTAL RESEARCH ISSN: 0141-1136 |
op_relation |
https://biblio.ugent.be/publication/8617022 http://hdl.handle.net/1854/LU-8617022 http://dx.doi.org/10.1016/j.marenvres.2019.01.006 https://biblio.ugent.be/publication/8617022/file/8617024 |
op_rights |
Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.marenvres.2019.01.006 |
container_title |
Marine Environmental Research |
container_volume |
144 |
container_start_page |
213 |
op_container_end_page |
229 |
_version_ |
1768372720728276992 |