Table_1_Microbial Communities in Coastal Glaciers and Tidewater Tongues of Svalbard Archipelago, Norway.DOC
Global warming is having a great impact on the Arctic region, due to the change of air temperature and precipitation. As a consequence, the glacial ice melts and englacial materials are being transported into the ocean. These substances can constitute a source of nutrients in food webs or, on the co...
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ftfrontimediafig:oai:figshare.com:article/7582259 2023-05-15T15:00:30+02:00 Table_1_Microbial Communities in Coastal Glaciers and Tidewater Tongues of Svalbard Archipelago, Norway.DOC Eva Garcia-Lopez Irene Rodriguez-Lorente Paula Alcazar Cristina Cid 2019-01-14T04:02:48Z https://doi.org/10.3389/fmars.2018.00512.s001 https://figshare.com/articles/Table_1_Microbial_Communities_in_Coastal_Glaciers_and_Tidewater_Tongues_of_Svalbard_Archipelago_Norway_DOC/7582259 unknown doi:10.3389/fmars.2018.00512.s001 https://figshare.com/articles/Table_1_Microbial_Communities_in_Coastal_Glaciers_and_Tidewater_Tongues_of_Svalbard_Archipelago_Norway_DOC/7582259 CC BY 4.0 CC-BY Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering coastal glaciers next-generation sequencing food web Svalbard archipelago Arctic Dataset 2019 ftfrontimediafig https://doi.org/10.3389/fmars.2018.00512.s001 2019-01-16T23:58:30Z Global warming is having a great impact on the Arctic region, due to the change of air temperature and precipitation. As a consequence, the glacial ice melts and englacial materials are being transported into the ocean. These substances can constitute a source of nutrients in food webs or, on the contrary, a source of contaminants. In this research seven marine Svalbard glaciers and their tidewater tongues were focused. This survey provides a first attempt comparing microbial communities from coastal and tidewater glaciers that reveal a hitherto unknown microbial diversity. A wider diversity was found in glaciers than in seawater samples. Glacier microorganisms mainly corresponded to the phylum Proteobacteria (48.8%), Bacteroidetes (29.1%) and Cyanobacteria (16.3%) (Figure 3A). Seawater microorganisms belonged to Bacteroidetes (40.3%), Actinobacteria (31.7%) and Proteobacteria (25.4%). Other phyla found such as Firmicutes, Thermi, Gemmatimonadetes, Verrucomicrobia, Nitrospirae, Chloroflexi, Planctomycetes, and Chlamydiae were less abundant. The distribution of microbial communities was affected in different extent by the concentration of nutrients (nitrogen nutrients, dissolved organic carbon and soluble reactive phosphorus) and by environmental parameters such as salinity. Nevertheless, the environmental variables did not influence in the distribution of the microbial communities as much as the concentration of nutrients did. Our results demonstrate an interchange between glacier and coastal microbial populations as well as the presence of some indicator species (i.e., Hymenobacter) as possible sentinels for bacterial transport between glaciers and their downstream seawaters. The consequence of this process could be the alteration of the water composition of the fiords producing serious consequences throughout the marine ecosystem and in the cycling of globally important elements. Dataset Arctic glacier Global warming Svalbard Tidewater Frontiers: Figshare Arctic Svalbard Svalbard Archipelago |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering coastal glaciers next-generation sequencing food web Svalbard archipelago Arctic |
spellingShingle |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering coastal glaciers next-generation sequencing food web Svalbard archipelago Arctic Eva Garcia-Lopez Irene Rodriguez-Lorente Paula Alcazar Cristina Cid Table_1_Microbial Communities in Coastal Glaciers and Tidewater Tongues of Svalbard Archipelago, Norway.DOC |
topic_facet |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering coastal glaciers next-generation sequencing food web Svalbard archipelago Arctic |
description |
Global warming is having a great impact on the Arctic region, due to the change of air temperature and precipitation. As a consequence, the glacial ice melts and englacial materials are being transported into the ocean. These substances can constitute a source of nutrients in food webs or, on the contrary, a source of contaminants. In this research seven marine Svalbard glaciers and their tidewater tongues were focused. This survey provides a first attempt comparing microbial communities from coastal and tidewater glaciers that reveal a hitherto unknown microbial diversity. A wider diversity was found in glaciers than in seawater samples. Glacier microorganisms mainly corresponded to the phylum Proteobacteria (48.8%), Bacteroidetes (29.1%) and Cyanobacteria (16.3%) (Figure 3A). Seawater microorganisms belonged to Bacteroidetes (40.3%), Actinobacteria (31.7%) and Proteobacteria (25.4%). Other phyla found such as Firmicutes, Thermi, Gemmatimonadetes, Verrucomicrobia, Nitrospirae, Chloroflexi, Planctomycetes, and Chlamydiae were less abundant. The distribution of microbial communities was affected in different extent by the concentration of nutrients (nitrogen nutrients, dissolved organic carbon and soluble reactive phosphorus) and by environmental parameters such as salinity. Nevertheless, the environmental variables did not influence in the distribution of the microbial communities as much as the concentration of nutrients did. Our results demonstrate an interchange between glacier and coastal microbial populations as well as the presence of some indicator species (i.e., Hymenobacter) as possible sentinels for bacterial transport between glaciers and their downstream seawaters. The consequence of this process could be the alteration of the water composition of the fiords producing serious consequences throughout the marine ecosystem and in the cycling of globally important elements. |
format |
Dataset |
author |
Eva Garcia-Lopez Irene Rodriguez-Lorente Paula Alcazar Cristina Cid |
author_facet |
Eva Garcia-Lopez Irene Rodriguez-Lorente Paula Alcazar Cristina Cid |
author_sort |
Eva Garcia-Lopez |
title |
Table_1_Microbial Communities in Coastal Glaciers and Tidewater Tongues of Svalbard Archipelago, Norway.DOC |
title_short |
Table_1_Microbial Communities in Coastal Glaciers and Tidewater Tongues of Svalbard Archipelago, Norway.DOC |
title_full |
Table_1_Microbial Communities in Coastal Glaciers and Tidewater Tongues of Svalbard Archipelago, Norway.DOC |
title_fullStr |
Table_1_Microbial Communities in Coastal Glaciers and Tidewater Tongues of Svalbard Archipelago, Norway.DOC |
title_full_unstemmed |
Table_1_Microbial Communities in Coastal Glaciers and Tidewater Tongues of Svalbard Archipelago, Norway.DOC |
title_sort |
table_1_microbial communities in coastal glaciers and tidewater tongues of svalbard archipelago, norway.doc |
publishDate |
2019 |
url |
https://doi.org/10.3389/fmars.2018.00512.s001 https://figshare.com/articles/Table_1_Microbial_Communities_in_Coastal_Glaciers_and_Tidewater_Tongues_of_Svalbard_Archipelago_Norway_DOC/7582259 |
geographic |
Arctic Svalbard Svalbard Archipelago |
geographic_facet |
Arctic Svalbard Svalbard Archipelago |
genre |
Arctic glacier Global warming Svalbard Tidewater |
genre_facet |
Arctic glacier Global warming Svalbard Tidewater |
op_relation |
doi:10.3389/fmars.2018.00512.s001 https://figshare.com/articles/Table_1_Microbial_Communities_in_Coastal_Glaciers_and_Tidewater_Tongues_of_Svalbard_Archipelago_Norway_DOC/7582259 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmars.2018.00512.s001 |
_version_ |
1766332595948224512 |