Total phosphorus records in coastal Antarctic sediments:burial and evidence of anthropogenic influence on recent input
Total phosphorus (TP) records reflect variations in input and burial of organic matter (OM) in coastal and shelf sediments. At Antarctic regions, TP levels are often derived from natural sources; however, with emergent human pressure at these regions, anthropogenic sources of TP may play an importan...
Published in: | Marine Chemistry |
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Language: | English |
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Online Access: | https://hdl.handle.net/1983/64ba05bb-6c99-4ec2-9193-6aefa722f803 https://research-information.bris.ac.uk/en/publications/64ba05bb-6c99-4ec2-9193-6aefa722f803 https://doi.org/10.1016/j.marchem.2021.104037 https://research-information.bris.ac.uk/ws/files/297840813/Freitas_etal_2021_MarineChemistry.pdf |
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ftubristolcris:oai:research-information.bris.ac.uk:publications/64ba05bb-6c99-4ec2-9193-6aefa722f803 2024-04-28T07:59:17+00:00 Total phosphorus records in coastal Antarctic sediments:burial and evidence of anthropogenic influence on recent input Sales de Freitas, Felipe Montone, Rosalinda Machado, Eunice Martins, Cesar 2021-12-20 application/pdf https://hdl.handle.net/1983/64ba05bb-6c99-4ec2-9193-6aefa722f803 https://research-information.bris.ac.uk/en/publications/64ba05bb-6c99-4ec2-9193-6aefa722f803 https://doi.org/10.1016/j.marchem.2021.104037 https://research-information.bris.ac.uk/ws/files/297840813/Freitas_etal_2021_MarineChemistry.pdf eng eng https://research-information.bris.ac.uk/en/publications/64ba05bb-6c99-4ec2-9193-6aefa722f803 info:eu-repo/semantics/openAccess Sales de Freitas , F , Montone , R , Machado , E & Martins , C 2021 , ' Total phosphorus records in coastal Antarctic sediments : burial and evidence of anthropogenic influence on recent input ' , Marine Chemistry , vol. 237 , 104037 . https://doi.org/10.1016/j.marchem.2021.104037 Organic matter Phosphorus pollution index Environmental changes Admiralty Bay Southern Ocean article 2021 ftubristolcris https://doi.org/10.1016/j.marchem.2021.104037 2024-04-03T16:07:14Z Total phosphorus (TP) records reflect variations in input and burial of organic matter (OM) in coastal and shelf sediments. At Antarctic regions, TP levels are often derived from natural sources; however, with emergent human pressure at these regions, anthropogenic sources of TP may play an important role. At the Antarctic Peninsula, Admiralty Bay attracts great scientific and touristic interest, especially during austral summer months, thus being vulnerable to human activities. Currently, only scarce spatial distributions of TP are available for this key region, whereas no vertical distributions have been determined. To fill this gap, we investigated short (< 20 cm) sediment cores in ten areas along Admiralty Bay for TP contents. We produced the first TP vertical distributions and established site-specific background values (from 492 ± 13 to 932 ± 17 μg g−1), which are related to hydrodynamics, sedimentology, and natural inputs of P. We observed a gradual surface TP enrichment at all sites, mainly due to input of fresh OM. Benefiting from our background values, we employ the Phosphorus Pollution Index (PPI) to assess possible human impacts. Generally, the increase of PPI suggests natural inputs of P. However, PPI ≥ 1.3 found at the nearby Comandante Ferraz Research Station (Brazil) can be linked to recent (past 2–3 decades) treated sewage inputs in Martel Inlet. We suggest PPI as a proxy for preliminary assessments of anthropogenic impacts in coastal Antarctic regions experiencing increased human pressure. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Southern Ocean University of Bristol: Bristol Research Marine Chemistry 237 104037 |
institution |
Open Polar |
collection |
University of Bristol: Bristol Research |
op_collection_id |
ftubristolcris |
language |
English |
topic |
Organic matter Phosphorus pollution index Environmental changes Admiralty Bay Southern Ocean |
spellingShingle |
Organic matter Phosphorus pollution index Environmental changes Admiralty Bay Southern Ocean Sales de Freitas, Felipe Montone, Rosalinda Machado, Eunice Martins, Cesar Total phosphorus records in coastal Antarctic sediments:burial and evidence of anthropogenic influence on recent input |
topic_facet |
Organic matter Phosphorus pollution index Environmental changes Admiralty Bay Southern Ocean |
description |
Total phosphorus (TP) records reflect variations in input and burial of organic matter (OM) in coastal and shelf sediments. At Antarctic regions, TP levels are often derived from natural sources; however, with emergent human pressure at these regions, anthropogenic sources of TP may play an important role. At the Antarctic Peninsula, Admiralty Bay attracts great scientific and touristic interest, especially during austral summer months, thus being vulnerable to human activities. Currently, only scarce spatial distributions of TP are available for this key region, whereas no vertical distributions have been determined. To fill this gap, we investigated short (< 20 cm) sediment cores in ten areas along Admiralty Bay for TP contents. We produced the first TP vertical distributions and established site-specific background values (from 492 ± 13 to 932 ± 17 μg g−1), which are related to hydrodynamics, sedimentology, and natural inputs of P. We observed a gradual surface TP enrichment at all sites, mainly due to input of fresh OM. Benefiting from our background values, we employ the Phosphorus Pollution Index (PPI) to assess possible human impacts. Generally, the increase of PPI suggests natural inputs of P. However, PPI ≥ 1.3 found at the nearby Comandante Ferraz Research Station (Brazil) can be linked to recent (past 2–3 decades) treated sewage inputs in Martel Inlet. We suggest PPI as a proxy for preliminary assessments of anthropogenic impacts in coastal Antarctic regions experiencing increased human pressure. |
format |
Article in Journal/Newspaper |
author |
Sales de Freitas, Felipe Montone, Rosalinda Machado, Eunice Martins, Cesar |
author_facet |
Sales de Freitas, Felipe Montone, Rosalinda Machado, Eunice Martins, Cesar |
author_sort |
Sales de Freitas, Felipe |
title |
Total phosphorus records in coastal Antarctic sediments:burial and evidence of anthropogenic influence on recent input |
title_short |
Total phosphorus records in coastal Antarctic sediments:burial and evidence of anthropogenic influence on recent input |
title_full |
Total phosphorus records in coastal Antarctic sediments:burial and evidence of anthropogenic influence on recent input |
title_fullStr |
Total phosphorus records in coastal Antarctic sediments:burial and evidence of anthropogenic influence on recent input |
title_full_unstemmed |
Total phosphorus records in coastal Antarctic sediments:burial and evidence of anthropogenic influence on recent input |
title_sort |
total phosphorus records in coastal antarctic sediments:burial and evidence of anthropogenic influence on recent input |
publishDate |
2021 |
url |
https://hdl.handle.net/1983/64ba05bb-6c99-4ec2-9193-6aefa722f803 https://research-information.bris.ac.uk/en/publications/64ba05bb-6c99-4ec2-9193-6aefa722f803 https://doi.org/10.1016/j.marchem.2021.104037 https://research-information.bris.ac.uk/ws/files/297840813/Freitas_etal_2021_MarineChemistry.pdf |
genre |
Antarc* Antarctic Antarctic Peninsula Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Southern Ocean |
op_source |
Sales de Freitas , F , Montone , R , Machado , E & Martins , C 2021 , ' Total phosphorus records in coastal Antarctic sediments : burial and evidence of anthropogenic influence on recent input ' , Marine Chemistry , vol. 237 , 104037 . https://doi.org/10.1016/j.marchem.2021.104037 |
op_relation |
https://research-information.bris.ac.uk/en/publications/64ba05bb-6c99-4ec2-9193-6aefa722f803 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.marchem.2021.104037 |
container_title |
Marine Chemistry |
container_volume |
237 |
container_start_page |
104037 |
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1797572116013383680 |