Elevated trace elements in sediments and seagrasses at CO2 seeps
Seagrasses often occur around shallow marine CO2 seeps, allowing assessment of trace metal accumulation. Here, we measured Cd, Cu, Hg, Ni, Pb and Zn levels at six CO2 seeps and six reference sites in the Mediterranean. Some seep sediments had elevated metal concentrations; an extreme example was Cd...
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ftunivalgarve:oai:sapientia.ualg.pt:10400.1/13518 2023-05-15T17:51:20+02:00 Elevated trace elements in sediments and seagrasses at CO2 seeps Mishra, Amrit Kumar Santos, Rui Hall-Spencer, Jason 2020 http://hdl.handle.net/10400.1/13518 https://doi.org/10.1016/j.marenvres.2019.104810 eng eng Elsevier 0141-1136 http://hdl.handle.net/10400.1/13518 doi:10.1016/j.marenvres.2019.104810 openAccess http://creativecommons.org/licenses/by/4.0/ CC-BY Bioaccumulation Bioavailability Ocean acidification Posidonia oceanica Cymodocea nodosa article 2020 ftunivalgarve https://doi.org/10.1016/j.marenvres.2019.104810 2022-05-30T08:48:58Z Seagrasses often occur around shallow marine CO2 seeps, allowing assessment of trace metal accumulation. Here, we measured Cd, Cu, Hg, Ni, Pb and Zn levels at six CO2 seeps and six reference sites in the Mediterranean. Some seep sediments had elevated metal concentrations; an extreme example was Cd which was 43x more concentrated at a seep site than its corresponding reference site. Three seeps had metal levels that were predicted to adversely affect marine biota, namely Vulcano (for Hg), Ischia (for Cu) and Paleochori (for Cd and Ni). There were higher-than-sediment levels of Zn and Ni in Posidonia oceanica and of Zn in Cymodocea nodosa, particularly in roots. High levels of Cu were found in Ischia seep sediments, yet seagrass was abundant there, and the plants contained low levels of Cu. Differences in bioavailability and toxicity of trace elements helps explain why seagrasses can be abundant at some CO2 seeps but not at others. Funding Agency MARES 'Future Oceans' project MARES _12_14 MARES Grant Ghent University FPA 2011-0016 Portuguese Foundation for Science and Technology UID/Muli/04326/2019 info:eu-repo/semantics/publishedVersion Article in Journal/Newspaper Ocean acidification Universidade do Algarve: Sapienta Marine Environmental Research 153 104810 |
institution |
Open Polar |
collection |
Universidade do Algarve: Sapienta |
op_collection_id |
ftunivalgarve |
language |
English |
topic |
Bioaccumulation Bioavailability Ocean acidification Posidonia oceanica Cymodocea nodosa |
spellingShingle |
Bioaccumulation Bioavailability Ocean acidification Posidonia oceanica Cymodocea nodosa Mishra, Amrit Kumar Santos, Rui Hall-Spencer, Jason Elevated trace elements in sediments and seagrasses at CO2 seeps |
topic_facet |
Bioaccumulation Bioavailability Ocean acidification Posidonia oceanica Cymodocea nodosa |
description |
Seagrasses often occur around shallow marine CO2 seeps, allowing assessment of trace metal accumulation. Here, we measured Cd, Cu, Hg, Ni, Pb and Zn levels at six CO2 seeps and six reference sites in the Mediterranean. Some seep sediments had elevated metal concentrations; an extreme example was Cd which was 43x more concentrated at a seep site than its corresponding reference site. Three seeps had metal levels that were predicted to adversely affect marine biota, namely Vulcano (for Hg), Ischia (for Cu) and Paleochori (for Cd and Ni). There were higher-than-sediment levels of Zn and Ni in Posidonia oceanica and of Zn in Cymodocea nodosa, particularly in roots. High levels of Cu were found in Ischia seep sediments, yet seagrass was abundant there, and the plants contained low levels of Cu. Differences in bioavailability and toxicity of trace elements helps explain why seagrasses can be abundant at some CO2 seeps but not at others. Funding Agency MARES 'Future Oceans' project MARES _12_14 MARES Grant Ghent University FPA 2011-0016 Portuguese Foundation for Science and Technology UID/Muli/04326/2019 info:eu-repo/semantics/publishedVersion |
format |
Article in Journal/Newspaper |
author |
Mishra, Amrit Kumar Santos, Rui Hall-Spencer, Jason |
author_facet |
Mishra, Amrit Kumar Santos, Rui Hall-Spencer, Jason |
author_sort |
Mishra, Amrit Kumar |
title |
Elevated trace elements in sediments and seagrasses at CO2 seeps |
title_short |
Elevated trace elements in sediments and seagrasses at CO2 seeps |
title_full |
Elevated trace elements in sediments and seagrasses at CO2 seeps |
title_fullStr |
Elevated trace elements in sediments and seagrasses at CO2 seeps |
title_full_unstemmed |
Elevated trace elements in sediments and seagrasses at CO2 seeps |
title_sort |
elevated trace elements in sediments and seagrasses at co2 seeps |
publisher |
Elsevier |
publishDate |
2020 |
url |
http://hdl.handle.net/10400.1/13518 https://doi.org/10.1016/j.marenvres.2019.104810 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
0141-1136 http://hdl.handle.net/10400.1/13518 doi:10.1016/j.marenvres.2019.104810 |
op_rights |
openAccess http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1016/j.marenvres.2019.104810 |
container_title |
Marine Environmental Research |
container_volume |
153 |
container_start_page |
104810 |
_version_ |
1766158451985088512 |