Strong macrobenthic community differentiation among sub-Arctic deep fjords on small spatial scales
Fjords play an important role in carbon cycling and sequestration, but the burial of organic matter in sediments strongly depends on the composition of macrobenthic communities. We studied three deep, sub-Arctic fjords located in northern Norway to assess the community differentiation of neighbourin...
Published in: | Estuarine, Coastal and Shelf Science |
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Language: | English |
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Online Access: | https://hdl.handle.net/11250/2764441 https://doi.org/10.1016/j.ecss.2021.107271 |
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ftnorskinstvf:oai:niva.brage.unit.no:11250/2764441 2023-05-15T14:53:56+02:00 Strong macrobenthic community differentiation among sub-Arctic deep fjords on small spatial scales Kokarev, Valentin Tachon, Mathieu Austad, Marthe Mcgovern, Maeve Reiss, Henning 2021 application/pdf https://hdl.handle.net/11250/2764441 https://doi.org/10.1016/j.ecss.2021.107271 eng eng Elsevier Estuarine, Coastal and Shelf Science. 2021, 252, 107271. urn:issn:0272-7714 https://hdl.handle.net/11250/2764441 https://doi.org/10.1016/j.ecss.2021.107271 cristin:1906887 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © 2021 The Authors. CC-BY 12 252 Estuarine, Coastal and Shelf Science 107271 Peer reviewed Journal article 2021 ftnorskinstvf https://doi.org/10.1016/j.ecss.2021.107271 2023-02-21T08:45:55Z Fjords play an important role in carbon cycling and sequestration, but the burial of organic matter in sediments strongly depends on the composition of macrobenthic communities. We studied three deep, sub-Arctic fjords located in northern Norway to assess the community differentiation of neighbouring fjords and the underlying environmental drivers. The fjords have relatively deep depositional basins (370–570 m), but they differ in sill depth and water exchange. In all fjords studied, the silty sediments were characterised by organic matter of mostly marine origin. We found that each basin was inhabited by a distinct benthic community, with pronounced differences in total abundance, biomass and species diversity. Only in one fjord (Skjerstadfjord), with a shallow sill, a slight mouth-to-head pattern of the community was found. The strong differentiation of macrobenthos among different fjords seems not to be directly associated with environmental drivers such as organic matter input, water masses or depth. publishedVersion Article in Journal/Newspaper Arctic Northern Norway Norwegian Institute for Water research: NIVA Open Access Archive (Brage) Arctic Norway Estuarine, Coastal and Shelf Science 252 107271 |
institution |
Open Polar |
collection |
Norwegian Institute for Water research: NIVA Open Access Archive (Brage) |
op_collection_id |
ftnorskinstvf |
language |
English |
description |
Fjords play an important role in carbon cycling and sequestration, but the burial of organic matter in sediments strongly depends on the composition of macrobenthic communities. We studied three deep, sub-Arctic fjords located in northern Norway to assess the community differentiation of neighbouring fjords and the underlying environmental drivers. The fjords have relatively deep depositional basins (370–570 m), but they differ in sill depth and water exchange. In all fjords studied, the silty sediments were characterised by organic matter of mostly marine origin. We found that each basin was inhabited by a distinct benthic community, with pronounced differences in total abundance, biomass and species diversity. Only in one fjord (Skjerstadfjord), with a shallow sill, a slight mouth-to-head pattern of the community was found. The strong differentiation of macrobenthos among different fjords seems not to be directly associated with environmental drivers such as organic matter input, water masses or depth. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Kokarev, Valentin Tachon, Mathieu Austad, Marthe Mcgovern, Maeve Reiss, Henning |
spellingShingle |
Kokarev, Valentin Tachon, Mathieu Austad, Marthe Mcgovern, Maeve Reiss, Henning Strong macrobenthic community differentiation among sub-Arctic deep fjords on small spatial scales |
author_facet |
Kokarev, Valentin Tachon, Mathieu Austad, Marthe Mcgovern, Maeve Reiss, Henning |
author_sort |
Kokarev, Valentin |
title |
Strong macrobenthic community differentiation among sub-Arctic deep fjords on small spatial scales |
title_short |
Strong macrobenthic community differentiation among sub-Arctic deep fjords on small spatial scales |
title_full |
Strong macrobenthic community differentiation among sub-Arctic deep fjords on small spatial scales |
title_fullStr |
Strong macrobenthic community differentiation among sub-Arctic deep fjords on small spatial scales |
title_full_unstemmed |
Strong macrobenthic community differentiation among sub-Arctic deep fjords on small spatial scales |
title_sort |
strong macrobenthic community differentiation among sub-arctic deep fjords on small spatial scales |
publisher |
Elsevier |
publishDate |
2021 |
url |
https://hdl.handle.net/11250/2764441 https://doi.org/10.1016/j.ecss.2021.107271 |
geographic |
Arctic Norway |
geographic_facet |
Arctic Norway |
genre |
Arctic Northern Norway |
genre_facet |
Arctic Northern Norway |
op_source |
12 252 Estuarine, Coastal and Shelf Science 107271 |
op_relation |
Estuarine, Coastal and Shelf Science. 2021, 252, 107271. urn:issn:0272-7714 https://hdl.handle.net/11250/2764441 https://doi.org/10.1016/j.ecss.2021.107271 cristin:1906887 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © 2021 The Authors. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1016/j.ecss.2021.107271 |
container_title |
Estuarine, Coastal and Shelf Science |
container_volume |
252 |
container_start_page |
107271 |
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1766325633043922944 |