Benthic Microbial Communities in a Seasonally Ice-Covered Sub-Arctic River (Pasvik River, Norway) Are Shaped by Site-Specific Environmental Conditions
The Pasvik River experiences chemical, physical, and biological stressors due to the direct discharges of domestic sewage from settlements located within the catchment and runoff from smelter and mine wastes. Sediments, as a natural repository of organic matter and associated contaminants, are of gl...
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ftdoajarticles:oai:doaj.org/article:43ce5ff695f54c9da708ebe39febfbb6 2023-05-15T14:59:51+02:00 Benthic Microbial Communities in a Seasonally Ice-Covered Sub-Arctic River (Pasvik River, Norway) Are Shaped by Site-Specific Environmental Conditions Maria Papale Carmen Rizzo Stefania Giannarelli Gabriella Caruso Stefano Amalfitano Paul Eric Aspholm Giovanna Maimone Stefano Miserocchi Alessandro Ciro Rappazzo Angelina Lo Giudice Maurizio Azzaro 2022-05-01T00:00:00Z https://doi.org/10.3390/microorganisms10051022 https://doaj.org/article/43ce5ff695f54c9da708ebe39febfbb6 EN eng MDPI AG https://www.mdpi.com/2076-2607/10/5/1022 https://doaj.org/toc/2076-2607 doi:10.3390/microorganisms10051022 2076-2607 https://doaj.org/article/43ce5ff695f54c9da708ebe39febfbb6 Microorganisms, Vol 10, Iss 1022, p 1022 (2022) anthropogenic contamination microbial community bacterial diversity Arctic river Biology (General) QH301-705.5 article 2022 ftdoajarticles https://doi.org/10.3390/microorganisms10051022 2022-12-30T21:50:50Z The Pasvik River experiences chemical, physical, and biological stressors due to the direct discharges of domestic sewage from settlements located within the catchment and runoff from smelter and mine wastes. Sediments, as a natural repository of organic matter and associated contaminants, are of global concern for the possible release of pollutants in the water column, with detrimental effects on aquatic organisms. The present study was aimed at characterizing the riverine benthic microbial community and evaluating its ecological role in relation to the contamination level. Sediments were sampled along the river during two contrasting environmental periods (i.e., beginning and ongoing phases of ice melting). Microbial enzymatic activities, cell abundance, and morphological traits were evaluated, along with the phylogenetic community composition. Amplified 16S rRNA genes from bacteria were sequenced using a next-generation approach. Sediments were also analyzed for a variety of chemical features, namely particulate material characteristics and concentration of polychlorobiphenyls, polycyclic aromatic hydrocarbons, and pesticides. Riverine and brackish sites did not affect the microbial community in terms of main phylogenetic diversity (at phylum level), morphometry, enzymatic activities, and abundance. Instead, bacterial diversity in the river sediments appeared to be influenced by the micro-niche conditions, with differences in the relative abundance of selected taxa. In particular, our results highlighted the occurrence of bacterial taxa directly involved in the C, Fe, and N cycles, as well as in the degradation of organic pollutants and toxic compounds. Article in Journal/Newspaper Arctic Pasvik Directory of Open Access Journals: DOAJ Articles Arctic Norway Pasvik ENVELOPE(30.580,30.580,69.810,69.810) Microorganisms 10 5 1022 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
anthropogenic contamination microbial community bacterial diversity Arctic river Biology (General) QH301-705.5 |
spellingShingle |
anthropogenic contamination microbial community bacterial diversity Arctic river Biology (General) QH301-705.5 Maria Papale Carmen Rizzo Stefania Giannarelli Gabriella Caruso Stefano Amalfitano Paul Eric Aspholm Giovanna Maimone Stefano Miserocchi Alessandro Ciro Rappazzo Angelina Lo Giudice Maurizio Azzaro Benthic Microbial Communities in a Seasonally Ice-Covered Sub-Arctic River (Pasvik River, Norway) Are Shaped by Site-Specific Environmental Conditions |
topic_facet |
anthropogenic contamination microbial community bacterial diversity Arctic river Biology (General) QH301-705.5 |
description |
The Pasvik River experiences chemical, physical, and biological stressors due to the direct discharges of domestic sewage from settlements located within the catchment and runoff from smelter and mine wastes. Sediments, as a natural repository of organic matter and associated contaminants, are of global concern for the possible release of pollutants in the water column, with detrimental effects on aquatic organisms. The present study was aimed at characterizing the riverine benthic microbial community and evaluating its ecological role in relation to the contamination level. Sediments were sampled along the river during two contrasting environmental periods (i.e., beginning and ongoing phases of ice melting). Microbial enzymatic activities, cell abundance, and morphological traits were evaluated, along with the phylogenetic community composition. Amplified 16S rRNA genes from bacteria were sequenced using a next-generation approach. Sediments were also analyzed for a variety of chemical features, namely particulate material characteristics and concentration of polychlorobiphenyls, polycyclic aromatic hydrocarbons, and pesticides. Riverine and brackish sites did not affect the microbial community in terms of main phylogenetic diversity (at phylum level), morphometry, enzymatic activities, and abundance. Instead, bacterial diversity in the river sediments appeared to be influenced by the micro-niche conditions, with differences in the relative abundance of selected taxa. In particular, our results highlighted the occurrence of bacterial taxa directly involved in the C, Fe, and N cycles, as well as in the degradation of organic pollutants and toxic compounds. |
format |
Article in Journal/Newspaper |
author |
Maria Papale Carmen Rizzo Stefania Giannarelli Gabriella Caruso Stefano Amalfitano Paul Eric Aspholm Giovanna Maimone Stefano Miserocchi Alessandro Ciro Rappazzo Angelina Lo Giudice Maurizio Azzaro |
author_facet |
Maria Papale Carmen Rizzo Stefania Giannarelli Gabriella Caruso Stefano Amalfitano Paul Eric Aspholm Giovanna Maimone Stefano Miserocchi Alessandro Ciro Rappazzo Angelina Lo Giudice Maurizio Azzaro |
author_sort |
Maria Papale |
title |
Benthic Microbial Communities in a Seasonally Ice-Covered Sub-Arctic River (Pasvik River, Norway) Are Shaped by Site-Specific Environmental Conditions |
title_short |
Benthic Microbial Communities in a Seasonally Ice-Covered Sub-Arctic River (Pasvik River, Norway) Are Shaped by Site-Specific Environmental Conditions |
title_full |
Benthic Microbial Communities in a Seasonally Ice-Covered Sub-Arctic River (Pasvik River, Norway) Are Shaped by Site-Specific Environmental Conditions |
title_fullStr |
Benthic Microbial Communities in a Seasonally Ice-Covered Sub-Arctic River (Pasvik River, Norway) Are Shaped by Site-Specific Environmental Conditions |
title_full_unstemmed |
Benthic Microbial Communities in a Seasonally Ice-Covered Sub-Arctic River (Pasvik River, Norway) Are Shaped by Site-Specific Environmental Conditions |
title_sort |
benthic microbial communities in a seasonally ice-covered sub-arctic river (pasvik river, norway) are shaped by site-specific environmental conditions |
publisher |
MDPI AG |
publishDate |
2022 |
url |
https://doi.org/10.3390/microorganisms10051022 https://doaj.org/article/43ce5ff695f54c9da708ebe39febfbb6 |
long_lat |
ENVELOPE(30.580,30.580,69.810,69.810) |
geographic |
Arctic Norway Pasvik |
geographic_facet |
Arctic Norway Pasvik |
genre |
Arctic Pasvik |
genre_facet |
Arctic Pasvik |
op_source |
Microorganisms, Vol 10, Iss 1022, p 1022 (2022) |
op_relation |
https://www.mdpi.com/2076-2607/10/5/1022 https://doaj.org/toc/2076-2607 doi:10.3390/microorganisms10051022 2076-2607 https://doaj.org/article/43ce5ff695f54c9da708ebe39febfbb6 |
op_doi |
https://doi.org/10.3390/microorganisms10051022 |
container_title |
Microorganisms |
container_volume |
10 |
container_issue |
5 |
container_start_page |
1022 |
_version_ |
1766331966150410240 |