Biogeochemical investigation of Basiluzzo CO2 vents (Panarea, Italy) during ECO2 cruises from 2011-2013
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| Format: | Dataset Open Access |
| Sprache: | en |
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PANGAEA
2017
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| author | Molari, Massimiliano Guilini, Katja Lott, Christian Weber, Miriam de Beer, Dirk Meyer, Stefanie Ramette, Alban Wenzhöfer, Frank Martin, Daniel Vanreusel, Ann Unger, Boris Schneider, Matthias Kuhfuss, Hanna Boetius, Antje |
| author_facet | Molari, Massimiliano Guilini, Katja Lott, Christian Weber, Miriam de Beer, Dirk Meyer, Stefanie Ramette, Alban Wenzhöfer, Frank Martin, Daniel Vanreusel, Ann Unger, Boris Schneider, Matthias Kuhfuss, Hanna Boetius, Antje |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Subseabed CO2 storage is considered a future climate change mitigation technology. We investigated the ecological consequences of CO2 leakage for a marine benthic ecosystem. For the first time with a multidisciplinary integrated study, we tested hypotheses derived from a meta-analysis of previous experimental and in situ high-CO2 impact studies. For this, we compared ecological functions of naturally CO2-vented seafloor off the Mediterranean island Panarea (Tyrrhenian Sea, Italy) to those of nonvented sands, with a focus on biogeochemical processes and microbial and faunal community composition. High CO2 fluxes (up to 4 to 7 mol CO2 m−2 hour−1) dissolved all sedimentary carbonate, and comigration of silicate and iron led to local increases of microphytobenthos productivity (+450%) and standing stocks (+300%). Despite the higher food availability, faunal biomass (−80%) and trophic diversity were substantially lower compared to those at the reference site. Bacterial communities were also structurally and functionally affected, most notably in the composition of heterotrophs and microbial sulfate reduction rates (−90%). The observed ecological effects of CO2 leakage on submarine sands were reproduced with medium-term transplant experiments. This study assesses indicators of environmental impact by CO2 leakage and finds that community compositions and important ecological functions are permanently altered under high CO2. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_871453 |
| institution | PANGAEA |
| language | en |
| publishDate | 2017 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Biogeochemical investigation of Basiluzzo CO2 vents (Panarea, Italy) during ECO2 cruises from 2011-2013 Molari, Massimiliano Guilini, Katja Lott, Christian Weber, Miriam de Beer, Dirk Meyer, Stefanie Ramette, Alban Wenzhöfer, Frank Martin, Daniel Vanreusel, Ann Unger, Boris Schneider, Matthias Kuhfuss, Hanna Boetius, Antje ECO2; Sub-seabed CO2 Storage: Impact on Marine Ecosystems Subseabed CO2 storage is considered a future climate change mitigation technology. We investigated the ecological consequences of CO2 leakage for a marine benthic ecosystem. For the first time with a multidisciplinary integrated study, we tested hypotheses derived from a meta-analysis of previous experimental and in situ high-CO2 impact studies. For this, we compared ecological functions of naturally CO2-vented seafloor off the Mediterranean island Panarea (Tyrrhenian Sea, Italy) to those of nonvented sands, with a focus on biogeochemical processes and microbial and faunal community composition. High CO2 fluxes (up to 4 to 7 mol CO2 m−2 hour−1) dissolved all sedimentary carbonate, and comigration of silicate and iron led to local increases of microphytobenthos productivity (+450%) and standing stocks (+300%). Despite the higher food availability, faunal biomass (−80%) and trophic diversity were substantially lower compared to those at the reference site. Bacterial communities were also structurally and functionally affected, most notably in the composition of heterotrophs and microbial sulfate reduction rates (−90%). The observed ecological effects of CO2 leakage on submarine sands were reproduced with medium-term transplant experiments. This study assesses indicators of environmental impact by CO2 leakage and finds that community compositions and important ecological functions are permanently altered under high CO2. |
| title | Biogeochemical investigation of Basiluzzo CO2 vents (Panarea, Italy) during ECO2 cruises from 2011-2013 |
| topic | ECO2; Sub-seabed CO2 Storage: Impact on Marine Ecosystems |
| url | https://doi.org/10.1594/PANGAEA.871453 |