Diversity of hard-bottom fauna relative to environmental gradients in Kongsfjorden, Svalbard
A baseline study of hard-bottom zoobenthos in relation to environmental gradients in Kongsfjorden, a glacial fjord in Svalbard, is presented, based on collections from 1996 to 1998. The total species richness in 62 samples from 0 to 30 m depth along five transects was 403 species. Because 32 taxa co...
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Norwegian Polar Institute
2013
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Online Access: | http://hdl.handle.net/11250/109307 https://doi.org/10.3402/polar.v32i0.11208 |
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ftimr:oai:imr.brage.unit.no:11250/109307 2023-05-15T14:59:52+02:00 Diversity of hard-bottom fauna relative to environmental gradients in Kongsfjorden, Svalbard Voronkov, Andrey Hop, Haakon Gulliksen, Bjørn 2013-04-26 application/pdf http://hdl.handle.net/11250/109307 https://doi.org/10.3402/polar.v32i0.11208 eng eng Norwegian Polar Institute Polar Research 2013, 32, 11208, http://dx.doi.org/10.3402/polar.v32i0.11208 urn:issn:1751-8369 http://hdl.handle.net/11250/109307 https://doi.org/10.3402/polar.v32i0.11208 27 s. 32 Polar Research Journal article Peer reviewed 2013 ftimr https://doi.org/10.3402/polar.v32i0.11208 2021-09-23T20:15:58Z A baseline study of hard-bottom zoobenthos in relation to environmental gradients in Kongsfjorden, a glacial fjord in Svalbard, is presented, based on collections from 1996 to 1998. The total species richness in 62 samples from 0 to 30 m depth along five transects was 403 species. Because 32 taxa could not be identified to species level and because 11 species are probably new to science, the total number of identified species was 360. Of these, 47 species are new for Svalbard waters. Bryozoa was the most diverse group. Biogeographic composition revealed features of both Arctic and sub-Arctic properties of the fauna. Species richness, frequency of species occurrence, mean abundance and biomass generally decreased towards the tidal glaciers in inner Kongsfjorden. Among eight environmental factors, depth was most important for explaining variance in the composition of the zoobenthos. The diversity was consistently low at shallow depths, whereas the non-linear patterns of species composition of deeper samples indicated a transitional zone between surface and deeper water masses at 15-20 m depth. Groups of ‘‘colonial’’ and ‘‘non-colonial’’ species differed in diversity, biogeographic composition and distribution by location and depth as well as in relation to other environmental factors. ‘‘Noncolonial’’ species made a greater contribution than ‘‘colonial’’ species to total species richness, total occurrence and biomass in samples, and were more influenced by the depth gradient. Biogeographic composition was sensitive to variation of zoobenthic characteristics over the studied depth range. A list of recorded species and a description of sampling sites are presented. Article in Journal/Newspaper Arctic Kongsfjord* Kongsfjorden Polar Research Svalbard Institute for Marine Research: Brage IMR Arctic Svalbard Polar Research 32 1 11208 |
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Open Polar |
collection |
Institute for Marine Research: Brage IMR |
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ftimr |
language |
English |
description |
A baseline study of hard-bottom zoobenthos in relation to environmental gradients in Kongsfjorden, a glacial fjord in Svalbard, is presented, based on collections from 1996 to 1998. The total species richness in 62 samples from 0 to 30 m depth along five transects was 403 species. Because 32 taxa could not be identified to species level and because 11 species are probably new to science, the total number of identified species was 360. Of these, 47 species are new for Svalbard waters. Bryozoa was the most diverse group. Biogeographic composition revealed features of both Arctic and sub-Arctic properties of the fauna. Species richness, frequency of species occurrence, mean abundance and biomass generally decreased towards the tidal glaciers in inner Kongsfjorden. Among eight environmental factors, depth was most important for explaining variance in the composition of the zoobenthos. The diversity was consistently low at shallow depths, whereas the non-linear patterns of species composition of deeper samples indicated a transitional zone between surface and deeper water masses at 15-20 m depth. Groups of ‘‘colonial’’ and ‘‘non-colonial’’ species differed in diversity, biogeographic composition and distribution by location and depth as well as in relation to other environmental factors. ‘‘Noncolonial’’ species made a greater contribution than ‘‘colonial’’ species to total species richness, total occurrence and biomass in samples, and were more influenced by the depth gradient. Biogeographic composition was sensitive to variation of zoobenthic characteristics over the studied depth range. A list of recorded species and a description of sampling sites are presented. |
format |
Article in Journal/Newspaper |
author |
Voronkov, Andrey Hop, Haakon Gulliksen, Bjørn |
spellingShingle |
Voronkov, Andrey Hop, Haakon Gulliksen, Bjørn Diversity of hard-bottom fauna relative to environmental gradients in Kongsfjorden, Svalbard |
author_facet |
Voronkov, Andrey Hop, Haakon Gulliksen, Bjørn |
author_sort |
Voronkov, Andrey |
title |
Diversity of hard-bottom fauna relative to environmental gradients in Kongsfjorden, Svalbard |
title_short |
Diversity of hard-bottom fauna relative to environmental gradients in Kongsfjorden, Svalbard |
title_full |
Diversity of hard-bottom fauna relative to environmental gradients in Kongsfjorden, Svalbard |
title_fullStr |
Diversity of hard-bottom fauna relative to environmental gradients in Kongsfjorden, Svalbard |
title_full_unstemmed |
Diversity of hard-bottom fauna relative to environmental gradients in Kongsfjorden, Svalbard |
title_sort |
diversity of hard-bottom fauna relative to environmental gradients in kongsfjorden, svalbard |
publisher |
Norwegian Polar Institute |
publishDate |
2013 |
url |
http://hdl.handle.net/11250/109307 https://doi.org/10.3402/polar.v32i0.11208 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Kongsfjord* Kongsfjorden Polar Research Svalbard |
genre_facet |
Arctic Kongsfjord* Kongsfjorden Polar Research Svalbard |
op_source |
27 s. 32 Polar Research |
op_relation |
Polar Research 2013, 32, 11208, http://dx.doi.org/10.3402/polar.v32i0.11208 urn:issn:1751-8369 http://hdl.handle.net/11250/109307 https://doi.org/10.3402/polar.v32i0.11208 |
op_doi |
https://doi.org/10.3402/polar.v32i0.11208 |
container_title |
Polar Research |
container_volume |
32 |
container_issue |
1 |
container_start_page |
11208 |
_version_ |
1766331989354348544 |