Environmental drivers of eukaryotic plankton and fish biodiversity in an Arctic fjord
Arctic fjords are experiencing rapid environmental shifts due to climate change, which may have significant impacts on marine biodiversity and ecosystem functioning. However, the impact of climate change on fjord biodiversity is difficult to quantify given the low accessibility and high cost to samp...
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2023
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ftinfoscience:oai:infoscience.epfl.ch:304630 2023-10-09T21:48:32+02:00 Environmental drivers of eukaryotic plankton and fish biodiversity in an Arctic fjord Marques, Virginie Hassler, Christel Deiner, Kristy Meier, Elias Valentini, Alice Albouy, Camille Pellissier, Loic 2023-08-28T00:46:25Z http://infoscience.epfl.ch/record/304630 https://doi.org/10.1007/s00300-023-03187-9 https://infoscience.epfl.ch/record/304630/files/document.pdf unknown New York, SPRINGER http://infoscience.epfl.ch/record/304630 isi:001041352400001 doi:10.1007/s00300-023-03187-9 https://infoscience.epfl.ch/record/304630/files/document.pdf http://infoscience.epfl.ch/record/304630 Text 2023 ftinfoscience https://doi.org/10.1007/s00300-023-03187-9 2023-09-10T23:52:42Z Arctic fjords are experiencing rapid environmental shifts due to climate change, which may have significant impacts on marine biodiversity and ecosystem functioning. However, the impact of climate change on fjord biodiversity is difficult to quantify given the low accessibility and high cost to sample these areas. In this study, we sampled locations from inside to outside an Arctic fjord and used environmental DNA metabarcoding to assess how the biodiversity of fish and eukaryotic plankton communities relate with environmental conditions. We detected a total of 12 fish taxa and 872 MOTUs for eukaryotes and found marked gradients of temperature and salinity driven by the distance to the glacier at the terminal part of the fjord and depth. Eukaryotic richness was mainly associated with lower temperature and chlorophyll a. Moreover, co-inertia analyses showed a shared structure between eukaryotes assemblages and the environmental gradients. A partial association between eukaryote and fishes suggest a potential shared effect of environmental gradients among these taxa. Our findings provide a baseline for future studies to assess how these assemblages may be impacted by ongoing environmental changes and highlight how fjord ice loss and warming might shift environmental gradients and species distribution under climate change. Text Arctic Climate change EPFL Infoscience (Ecole Polytechnique Fédérale Lausanne) Arctic Polar Biology 46 10 1083 1096 |
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Open Polar |
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EPFL Infoscience (Ecole Polytechnique Fédérale Lausanne) |
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ftinfoscience |
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unknown |
description |
Arctic fjords are experiencing rapid environmental shifts due to climate change, which may have significant impacts on marine biodiversity and ecosystem functioning. However, the impact of climate change on fjord biodiversity is difficult to quantify given the low accessibility and high cost to sample these areas. In this study, we sampled locations from inside to outside an Arctic fjord and used environmental DNA metabarcoding to assess how the biodiversity of fish and eukaryotic plankton communities relate with environmental conditions. We detected a total of 12 fish taxa and 872 MOTUs for eukaryotes and found marked gradients of temperature and salinity driven by the distance to the glacier at the terminal part of the fjord and depth. Eukaryotic richness was mainly associated with lower temperature and chlorophyll a. Moreover, co-inertia analyses showed a shared structure between eukaryotes assemblages and the environmental gradients. A partial association between eukaryote and fishes suggest a potential shared effect of environmental gradients among these taxa. Our findings provide a baseline for future studies to assess how these assemblages may be impacted by ongoing environmental changes and highlight how fjord ice loss and warming might shift environmental gradients and species distribution under climate change. |
format |
Text |
author |
Marques, Virginie Hassler, Christel Deiner, Kristy Meier, Elias Valentini, Alice Albouy, Camille Pellissier, Loic |
spellingShingle |
Marques, Virginie Hassler, Christel Deiner, Kristy Meier, Elias Valentini, Alice Albouy, Camille Pellissier, Loic Environmental drivers of eukaryotic plankton and fish biodiversity in an Arctic fjord |
author_facet |
Marques, Virginie Hassler, Christel Deiner, Kristy Meier, Elias Valentini, Alice Albouy, Camille Pellissier, Loic |
author_sort |
Marques, Virginie |
title |
Environmental drivers of eukaryotic plankton and fish biodiversity in an Arctic fjord |
title_short |
Environmental drivers of eukaryotic plankton and fish biodiversity in an Arctic fjord |
title_full |
Environmental drivers of eukaryotic plankton and fish biodiversity in an Arctic fjord |
title_fullStr |
Environmental drivers of eukaryotic plankton and fish biodiversity in an Arctic fjord |
title_full_unstemmed |
Environmental drivers of eukaryotic plankton and fish biodiversity in an Arctic fjord |
title_sort |
environmental drivers of eukaryotic plankton and fish biodiversity in an arctic fjord |
publisher |
New York, SPRINGER |
publishDate |
2023 |
url |
http://infoscience.epfl.ch/record/304630 https://doi.org/10.1007/s00300-023-03187-9 https://infoscience.epfl.ch/record/304630/files/document.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change |
genre_facet |
Arctic Climate change |
op_source |
http://infoscience.epfl.ch/record/304630 |
op_relation |
http://infoscience.epfl.ch/record/304630 isi:001041352400001 doi:10.1007/s00300-023-03187-9 https://infoscience.epfl.ch/record/304630/files/document.pdf |
op_doi |
https://doi.org/10.1007/s00300-023-03187-9 |
container_title |
Polar Biology |
container_volume |
46 |
container_issue |
10 |
container_start_page |
1083 |
op_container_end_page |
1096 |
_version_ |
1779311614651006976 |