Antarctic Special Protected Area 161 as a Reference to Assess the Effects of Anthropogenic and Natural Impacts on Meiobenthic Assemblages
The Antarctic region is usually considered a pristine area. Nevertheless, regional warming effects and increasing human activities, including the presence of several research stations, are inducing considerable environmental changes that may affect the ecosystem’s functions. Therefore, during the XX...
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ftuninapoliparth:oai:ricerca.uniparthenope.it:11367/99376 2024-04-14T08:03:55+00:00 Antarctic Special Protected Area 161 as a Reference to Assess the Effects of Anthropogenic and Natural Impacts on Meiobenthic Assemblages Semprucci, F. Appolloni, L. Grassi, E. Donnarumma, L. Cesaroni, L. Tirimberio, G. Chianese, E. Di Donato, P. Russo, G. F. Balsamo, M. Sandulli, R. Semprucci, F. Appolloni, L. Grassi, E. Donnarumma, L. Cesaroni, L. Tirimberio, G. Chianese, E. Di Donato, P. Russo, G. F. Balsamo, M. Sandulli, R. 2021 http://hdl.handle.net/11367/99376 https://doi.org/10.3390/d13120626 unknown info:eu-repo/semantics/altIdentifier/wos/WOS:000736660300001 volume:13 issue:12 firstpage:626 lastpage:647 numberofpages:22 journal:DIVERSITY http://hdl.handle.net/11367/99376 doi:10.3390/d13120626 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85121654013 . https://doi.org/10.3390/d13120626 meiobentho antarctica interstitial water heavy metal sediment info:eu-repo/semantics/article 2021 ftuninapoliparth https://doi.org/10.3390/d13120626 2024-03-21T18:04:13Z The Antarctic region is usually considered a pristine area. Nevertheless, regional warming effects and increasing human activities, including the presence of several research stations, are inducing considerable environmental changes that may affect the ecosystem’s functions. Therefore, during the XXXIII Antarctic expedition, we carried out an investigation in Terra Nova bay (Ross Sea), close to the Antarctic Specially Protected Area (ASPA) n.161. In particular, we compared the effects of two different types of impacts on the meiobenthic assemblages: anthropogenic impact (AI), associated with the activity of Mario Zucchelli Research Station (MZS), and natural impact (NI) attributable to a large colony of Adélie penguins (Pygoscelis adeliae) in Adelie Cove. For each impacted site, a respective control site and two sampling depths (20 and 50 m) were selected. Several environmental variables (pH, dissolved oxygen, major and minor ions, heavy metals, organic load, and sediment grain size) were measured and analysed, to allow a comprehensive characterization of the sampling areas. According to the criteria defined by Unites States Environmental Protection Agency (US EPA 2009), heavy metal concentrations did not reveal critical conditions. However, both the MZS (AI20) and penguin colony (NI20) sites showed higher heavy metal concentrations, the former due to human activities related to the Italian research station, with the latter caused by the penguins excrements. Meiobenthic richness and abundance values suggested that the worst ecological condition was consistently related to the Adélie penguins colony. Furthermore, the higher contribution of r-strategists corroborates the hypothesis that the chronic impact of the penguin colonies may have stronger effects on the meiobenthos than the human activities at the MZS. Food is not limited in shallow Antarctic bottoms, and microscale differences in primary and secondary production processes can likely explain the greater spatial heterogeneity, highlighted both by the ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Pygoscelis adeliae Ross Sea Università degli Studi di Napoli "Parthenope": CINECA IRIS Antarctic The Antarctic Ross Sea Terra Nova Bay Mario Zucchelli ENVELOPE(164.123,164.123,-74.695,-74.695) Diversity 13 12 626 |
institution |
Open Polar |
collection |
Università degli Studi di Napoli "Parthenope": CINECA IRIS |
op_collection_id |
ftuninapoliparth |
language |
unknown |
topic |
meiobentho antarctica interstitial water heavy metal sediment |
spellingShingle |
meiobentho antarctica interstitial water heavy metal sediment Semprucci, F. Appolloni, L. Grassi, E. Donnarumma, L. Cesaroni, L. Tirimberio, G. Chianese, E. Di Donato, P. Russo, G. F. Balsamo, M. Sandulli, R. Antarctic Special Protected Area 161 as a Reference to Assess the Effects of Anthropogenic and Natural Impacts on Meiobenthic Assemblages |
topic_facet |
meiobentho antarctica interstitial water heavy metal sediment |
description |
The Antarctic region is usually considered a pristine area. Nevertheless, regional warming effects and increasing human activities, including the presence of several research stations, are inducing considerable environmental changes that may affect the ecosystem’s functions. Therefore, during the XXXIII Antarctic expedition, we carried out an investigation in Terra Nova bay (Ross Sea), close to the Antarctic Specially Protected Area (ASPA) n.161. In particular, we compared the effects of two different types of impacts on the meiobenthic assemblages: anthropogenic impact (AI), associated with the activity of Mario Zucchelli Research Station (MZS), and natural impact (NI) attributable to a large colony of Adélie penguins (Pygoscelis adeliae) in Adelie Cove. For each impacted site, a respective control site and two sampling depths (20 and 50 m) were selected. Several environmental variables (pH, dissolved oxygen, major and minor ions, heavy metals, organic load, and sediment grain size) were measured and analysed, to allow a comprehensive characterization of the sampling areas. According to the criteria defined by Unites States Environmental Protection Agency (US EPA 2009), heavy metal concentrations did not reveal critical conditions. However, both the MZS (AI20) and penguin colony (NI20) sites showed higher heavy metal concentrations, the former due to human activities related to the Italian research station, with the latter caused by the penguins excrements. Meiobenthic richness and abundance values suggested that the worst ecological condition was consistently related to the Adélie penguins colony. Furthermore, the higher contribution of r-strategists corroborates the hypothesis that the chronic impact of the penguin colonies may have stronger effects on the meiobenthos than the human activities at the MZS. Food is not limited in shallow Antarctic bottoms, and microscale differences in primary and secondary production processes can likely explain the greater spatial heterogeneity, highlighted both by the ... |
author2 |
Semprucci, F. Appolloni, L. Grassi, E. Donnarumma, L. Cesaroni, L. Tirimberio, G. Chianese, E. Di Donato, P. Russo, G. F. Balsamo, M. Sandulli, R. |
format |
Article in Journal/Newspaper |
author |
Semprucci, F. Appolloni, L. Grassi, E. Donnarumma, L. Cesaroni, L. Tirimberio, G. Chianese, E. Di Donato, P. Russo, G. F. Balsamo, M. Sandulli, R. |
author_facet |
Semprucci, F. Appolloni, L. Grassi, E. Donnarumma, L. Cesaroni, L. Tirimberio, G. Chianese, E. Di Donato, P. Russo, G. F. Balsamo, M. Sandulli, R. |
author_sort |
Semprucci, F. |
title |
Antarctic Special Protected Area 161 as a Reference to Assess the Effects of Anthropogenic and Natural Impacts on Meiobenthic Assemblages |
title_short |
Antarctic Special Protected Area 161 as a Reference to Assess the Effects of Anthropogenic and Natural Impacts on Meiobenthic Assemblages |
title_full |
Antarctic Special Protected Area 161 as a Reference to Assess the Effects of Anthropogenic and Natural Impacts on Meiobenthic Assemblages |
title_fullStr |
Antarctic Special Protected Area 161 as a Reference to Assess the Effects of Anthropogenic and Natural Impacts on Meiobenthic Assemblages |
title_full_unstemmed |
Antarctic Special Protected Area 161 as a Reference to Assess the Effects of Anthropogenic and Natural Impacts on Meiobenthic Assemblages |
title_sort |
antarctic special protected area 161 as a reference to assess the effects of anthropogenic and natural impacts on meiobenthic assemblages |
publishDate |
2021 |
url |
http://hdl.handle.net/11367/99376 https://doi.org/10.3390/d13120626 |
long_lat |
ENVELOPE(164.123,164.123,-74.695,-74.695) |
geographic |
Antarctic The Antarctic Ross Sea Terra Nova Bay Mario Zucchelli |
geographic_facet |
Antarctic The Antarctic Ross Sea Terra Nova Bay Mario Zucchelli |
genre |
Antarc* Antarctic Antarctica Pygoscelis adeliae Ross Sea |
genre_facet |
Antarc* Antarctic Antarctica Pygoscelis adeliae Ross Sea |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000736660300001 volume:13 issue:12 firstpage:626 lastpage:647 numberofpages:22 journal:DIVERSITY http://hdl.handle.net/11367/99376 doi:10.3390/d13120626 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85121654013 . https://doi.org/10.3390/d13120626 |
op_doi |
https://doi.org/10.3390/d13120626 |
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Diversity |
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13 |
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626 |
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