Epibenthic megafauna communities in Northeast Greenland vary across coastal, continental shelf and slope habitats
The marine area of Northeast Greenland belongs to the largest national park in the world. Biodiversity assessments and tailored conservation measures often target specific physiographic or oceanographic features of an area for which detailed knowledge on their biological communities is incomplete. T...
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ftunivtroemsoe:oai:munin.uit.no:10037/19821 2023-05-15T15:11:04+02:00 Epibenthic megafauna communities in Northeast Greenland vary across coastal, continental shelf and slope habitats Fredriksen, Rosalyn Christiansen, Jørgen Schou Bonsdorff, Erik Larsen, Lars-Henrik Nordström, Marie C. Zhulay, Irina Bluhm, Bodil 2020-08-29 https://hdl.handle.net/10037/19821 https://doi.org/10.1007/s00300-020-02733-z eng eng Springer Polar Biology FRIDAID 1838259 https://doi.org/10.1007/s00300-020-02733-z 0722-4060 1432-2056 https://hdl.handle.net/10037/19821 openAccess Copyright 2020 The Author(s) VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2020 ftunivtroemsoe https://doi.org/10.1007/s00300-020-02733-z 2021-06-25T17:57:46Z The marine area of Northeast Greenland belongs to the largest national park in the world. Biodiversity assessments and tailored conservation measures often target specific physiographic or oceanographic features of an area for which detailed knowledge on their biological communities is incomplete. This study, therefore, characterizes epibenthic megafauna communities in a priori defined seabed habitats (fjord, shelf, shelf break and slope) and their relationship to environmental conditions in Northeast Greenland waters as a basis for conservation and management planning. Megabenthos was sampled from the Bessel Fjord across the shelf to the upper continental slope between latitudes 74.55°N–79.27°N and longitudes 5.22°W–21.72°W by Campelen and Agassiz trawls at 18 locations (total of 33 samples) at depths between 65 and 1011 m in August 2015 and September 2017. A total of 276 taxa were identified. Gross estimates of abundance ranged from 4 to 854 individuals 1000 m −2 and biomass ranged from 65 to 528 g wet weight 1000 m −2 (2017 only). The phyla Arthropoda and Porifera contributed the most to taxon richness, while Mollusca and Echinodermata were the most abundant, and Echinodermata had the highest biomass of all phyla. Fjord, shelf, shelf break and slope seabed habitats revealed different megafaunal communities that were partly explained by gradients in depth, bottom oxygen concentration, temperature, salinity, and turbidity. The present study provides a current baseline of megabenthos across seabed habitats in Northeast Greenlandic waters and reveals putative connections between Arctic and Atlantic biota. Article in Journal/Newspaper Arctic Bessel fjord Greenland greenlandic Polar Biology University of Tromsø: Munin Open Research Archive Arctic Greenland Polar Biology 43 10 1623 1642 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 |
spellingShingle |
VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 Fredriksen, Rosalyn Christiansen, Jørgen Schou Bonsdorff, Erik Larsen, Lars-Henrik Nordström, Marie C. Zhulay, Irina Bluhm, Bodil Epibenthic megafauna communities in Northeast Greenland vary across coastal, continental shelf and slope habitats |
topic_facet |
VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 |
description |
The marine area of Northeast Greenland belongs to the largest national park in the world. Biodiversity assessments and tailored conservation measures often target specific physiographic or oceanographic features of an area for which detailed knowledge on their biological communities is incomplete. This study, therefore, characterizes epibenthic megafauna communities in a priori defined seabed habitats (fjord, shelf, shelf break and slope) and their relationship to environmental conditions in Northeast Greenland waters as a basis for conservation and management planning. Megabenthos was sampled from the Bessel Fjord across the shelf to the upper continental slope between latitudes 74.55°N–79.27°N and longitudes 5.22°W–21.72°W by Campelen and Agassiz trawls at 18 locations (total of 33 samples) at depths between 65 and 1011 m in August 2015 and September 2017. A total of 276 taxa were identified. Gross estimates of abundance ranged from 4 to 854 individuals 1000 m −2 and biomass ranged from 65 to 528 g wet weight 1000 m −2 (2017 only). The phyla Arthropoda and Porifera contributed the most to taxon richness, while Mollusca and Echinodermata were the most abundant, and Echinodermata had the highest biomass of all phyla. Fjord, shelf, shelf break and slope seabed habitats revealed different megafaunal communities that were partly explained by gradients in depth, bottom oxygen concentration, temperature, salinity, and turbidity. The present study provides a current baseline of megabenthos across seabed habitats in Northeast Greenlandic waters and reveals putative connections between Arctic and Atlantic biota. |
format |
Article in Journal/Newspaper |
author |
Fredriksen, Rosalyn Christiansen, Jørgen Schou Bonsdorff, Erik Larsen, Lars-Henrik Nordström, Marie C. Zhulay, Irina Bluhm, Bodil |
author_facet |
Fredriksen, Rosalyn Christiansen, Jørgen Schou Bonsdorff, Erik Larsen, Lars-Henrik Nordström, Marie C. Zhulay, Irina Bluhm, Bodil |
author_sort |
Fredriksen, Rosalyn |
title |
Epibenthic megafauna communities in Northeast Greenland vary across coastal, continental shelf and slope habitats |
title_short |
Epibenthic megafauna communities in Northeast Greenland vary across coastal, continental shelf and slope habitats |
title_full |
Epibenthic megafauna communities in Northeast Greenland vary across coastal, continental shelf and slope habitats |
title_fullStr |
Epibenthic megafauna communities in Northeast Greenland vary across coastal, continental shelf and slope habitats |
title_full_unstemmed |
Epibenthic megafauna communities in Northeast Greenland vary across coastal, continental shelf and slope habitats |
title_sort |
epibenthic megafauna communities in northeast greenland vary across coastal, continental shelf and slope habitats |
publisher |
Springer |
publishDate |
2020 |
url |
https://hdl.handle.net/10037/19821 https://doi.org/10.1007/s00300-020-02733-z |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Bessel fjord Greenland greenlandic Polar Biology |
genre_facet |
Arctic Bessel fjord Greenland greenlandic Polar Biology |
op_relation |
Polar Biology FRIDAID 1838259 https://doi.org/10.1007/s00300-020-02733-z 0722-4060 1432-2056 https://hdl.handle.net/10037/19821 |
op_rights |
openAccess Copyright 2020 The Author(s) |
op_doi |
https://doi.org/10.1007/s00300-020-02733-z |
container_title |
Polar Biology |
container_volume |
43 |
container_issue |
10 |
container_start_page |
1623 |
op_container_end_page |
1642 |
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1766341981357735936 |