Benthic transition zones in the Atlantic gateway to a changing Arctic ocean
The biogeographic transition from boreal to Arctic marine communities entails a strong taxonomic and functional turnover. Communities living in these areas are being strongly affected by climate warming with rapid reorganizations and change in ecosystem functioning. We assess the megabenthic species...
Published in: | Progress in Oceanography |
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Online Access: | https://hdl.handle.net/10037/26034 https://doi.org/10.1016/j.pocean.2022.102792 |
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ftunivtroemsoe:oai:munin.uit.no:10037/26034 2023-05-15T14:24:15+02:00 Benthic transition zones in the Atlantic gateway to a changing Arctic ocean Jørgensen, Lis Lindal Pecuchet, Laurene Ingvaldsen, Randi Brunvær Primicerio, Raul 2022-04-06 https://hdl.handle.net/10037/26034 https://doi.org/10.1016/j.pocean.2022.102792 eng eng Elsevier Progress in Oceanography Jørgensen, Pecuchet, Ingvaldsen, Primicerio. Benthic transition zones in the Atlantic gateway to a changing Arctic ocean. Progress in Oceanography. 2022;204 FRIDAID 2020308 doi:10.1016/j.pocean.2022.102792 0079-6611 1873-4472 https://hdl.handle.net/10037/26034 openAccess Copyright 2022 The Author(s) Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2022 ftunivtroemsoe https://doi.org/10.1016/j.pocean.2022.102792 2022-08-10T22:59:59Z The biogeographic transition from boreal to Arctic marine communities entails a strong taxonomic and functional turnover. Communities living in these areas are being strongly affected by climate warming with rapid reorganizations and change in ecosystem functioning. We assess the megabenthic species composition and functional character in a transition zone around Svalbard. The relationships between environment, taxonomic composition and functional traits are investigated and discussed regarding the potential impacts of climate warming. The biomass data from 293 taxa, coded with 6 functional traits (29 modalities), from 144 trawl stations, were analyzed by multivariate statistics based on taxonomy, RLQ- and fourth corner analysis, based on environment and traits. We find that boundaries between water masses and depths are associated gradual taxonomic and sharp functional transitions. We document a biogeographic transition zone on the slope northeast of Svalbard where surface deposit feeding crustacean associations meet crawling Arctic echinoderm predators. Further we show a sharp transition at 500 m depth along the shelf of Svalbard where boreal filtrating deep-sea sponges meet a unique upraised large-bodied assemblage of bathyal species on the Yermak Plateau. Global warming will likely cause rapid taxonomic and functional shifts in these transition areas, with filtrating sponges and deposit feeding crustaceans possibly expanding into Arctic communities while large, upright, predators further down the slope. There is a need for both monitoring of the transition areas, and for protecting the most vulnerable deep and arctic fauna on the Yermak Plateau. Article in Journal/Newspaper Arctic Arctic Arctic Ocean Global warming Svalbard Yermak plateau University of Tromsø: Munin Open Research Archive Arctic Arctic Ocean Svalbard Yermak Plateau ENVELOPE(5.000,5.000,81.250,81.250) Progress in Oceanography 204 102792 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
description |
The biogeographic transition from boreal to Arctic marine communities entails a strong taxonomic and functional turnover. Communities living in these areas are being strongly affected by climate warming with rapid reorganizations and change in ecosystem functioning. We assess the megabenthic species composition and functional character in a transition zone around Svalbard. The relationships between environment, taxonomic composition and functional traits are investigated and discussed regarding the potential impacts of climate warming. The biomass data from 293 taxa, coded with 6 functional traits (29 modalities), from 144 trawl stations, were analyzed by multivariate statistics based on taxonomy, RLQ- and fourth corner analysis, based on environment and traits. We find that boundaries between water masses and depths are associated gradual taxonomic and sharp functional transitions. We document a biogeographic transition zone on the slope northeast of Svalbard where surface deposit feeding crustacean associations meet crawling Arctic echinoderm predators. Further we show a sharp transition at 500 m depth along the shelf of Svalbard where boreal filtrating deep-sea sponges meet a unique upraised large-bodied assemblage of bathyal species on the Yermak Plateau. Global warming will likely cause rapid taxonomic and functional shifts in these transition areas, with filtrating sponges and deposit feeding crustaceans possibly expanding into Arctic communities while large, upright, predators further down the slope. There is a need for both monitoring of the transition areas, and for protecting the most vulnerable deep and arctic fauna on the Yermak Plateau. |
format |
Article in Journal/Newspaper |
author |
Jørgensen, Lis Lindal Pecuchet, Laurene Ingvaldsen, Randi Brunvær Primicerio, Raul |
spellingShingle |
Jørgensen, Lis Lindal Pecuchet, Laurene Ingvaldsen, Randi Brunvær Primicerio, Raul Benthic transition zones in the Atlantic gateway to a changing Arctic ocean |
author_facet |
Jørgensen, Lis Lindal Pecuchet, Laurene Ingvaldsen, Randi Brunvær Primicerio, Raul |
author_sort |
Jørgensen, Lis Lindal |
title |
Benthic transition zones in the Atlantic gateway to a changing Arctic ocean |
title_short |
Benthic transition zones in the Atlantic gateway to a changing Arctic ocean |
title_full |
Benthic transition zones in the Atlantic gateway to a changing Arctic ocean |
title_fullStr |
Benthic transition zones in the Atlantic gateway to a changing Arctic ocean |
title_full_unstemmed |
Benthic transition zones in the Atlantic gateway to a changing Arctic ocean |
title_sort |
benthic transition zones in the atlantic gateway to a changing arctic ocean |
publisher |
Elsevier |
publishDate |
2022 |
url |
https://hdl.handle.net/10037/26034 https://doi.org/10.1016/j.pocean.2022.102792 |
long_lat |
ENVELOPE(5.000,5.000,81.250,81.250) |
geographic |
Arctic Arctic Ocean Svalbard Yermak Plateau |
geographic_facet |
Arctic Arctic Ocean Svalbard Yermak Plateau |
genre |
Arctic Arctic Arctic Ocean Global warming Svalbard Yermak plateau |
genre_facet |
Arctic Arctic Arctic Ocean Global warming Svalbard Yermak plateau |
op_relation |
Progress in Oceanography Jørgensen, Pecuchet, Ingvaldsen, Primicerio. Benthic transition zones in the Atlantic gateway to a changing Arctic ocean. Progress in Oceanography. 2022;204 FRIDAID 2020308 doi:10.1016/j.pocean.2022.102792 0079-6611 1873-4472 https://hdl.handle.net/10037/26034 |
op_rights |
openAccess Copyright 2022 The Author(s) |
op_doi |
https://doi.org/10.1016/j.pocean.2022.102792 |
container_title |
Progress in Oceanography |
container_volume |
204 |
container_start_page |
102792 |
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1766296699396947968 |