The Demersal Fish Community on the West Spitsbergen Shelf. Biodiversity, species composition, distribution and temporal changes in relation to climate.
This thesis explores a historical time series of trawl stations on the West Spitsbergen Shelf (WSS), aiming to understand the spatial and temporal variability of the demersal fish communities in the region. Abundance data of 42 fish species are used to investigate the species composition, richness,...
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UiT Norges arktiske universitet
2020
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Online Access: | https://hdl.handle.net/10037/19099 |
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ftunivtroemsoe:oai:munin.uit.no:10037/19099 2023-05-15T14:53:37+02:00 The Demersal Fish Community on the West Spitsbergen Shelf. Biodiversity, species composition, distribution and temporal changes in relation to climate. Born, Mathea 2020-05-29 https://hdl.handle.net/10037/19099 eng eng UiT Norges arktiske universitet UiT The Arctic University of Norway https://hdl.handle.net/10037/19099 openAccess Copyright 2020 The Author(s) VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 BIO-3950 Master thesis Mastergradsoppgave 2020 ftunivtroemsoe 2021-06-25T17:57:37Z This thesis explores a historical time series of trawl stations on the West Spitsbergen Shelf (WSS), aiming to understand the spatial and temporal variability of the demersal fish communities in the region. Abundance data of 42 fish species are used to investigate the species composition, richness, and diversity across six different areas under different environmetal influence. The results indicate a separation in the fish community between Arctic and Atlantic on the WSS. This Arctic-Atlantic separation is most evident in the first decade of the survey but seems to be weakening towards the end of the studied period. Additionally, the fish species composition on the shelf appears to be affected by the decadal variability of the NAC, converging towards a more similar composition during warm periods and diverging during colder periods. Although species richness and diversity show sharp interannual fluctuations throughout the time series, an increase in diversity was detected in one of the Arctic areas. In contrast, its Atlantic counterpart showed the opposite trend. These results might indicate that the fishes on the continental slope are moving further in on the shelf, adding richness and diversity to these areas while changing the species composition towards a more Atlantic community. Master Thesis Arctic Spitsbergen University of Tromsø: Munin Open Research Archive Arctic |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 BIO-3950 |
spellingShingle |
VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 BIO-3950 Born, Mathea The Demersal Fish Community on the West Spitsbergen Shelf. Biodiversity, species composition, distribution and temporal changes in relation to climate. |
topic_facet |
VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 BIO-3950 |
description |
This thesis explores a historical time series of trawl stations on the West Spitsbergen Shelf (WSS), aiming to understand the spatial and temporal variability of the demersal fish communities in the region. Abundance data of 42 fish species are used to investigate the species composition, richness, and diversity across six different areas under different environmetal influence. The results indicate a separation in the fish community between Arctic and Atlantic on the WSS. This Arctic-Atlantic separation is most evident in the first decade of the survey but seems to be weakening towards the end of the studied period. Additionally, the fish species composition on the shelf appears to be affected by the decadal variability of the NAC, converging towards a more similar composition during warm periods and diverging during colder periods. Although species richness and diversity show sharp interannual fluctuations throughout the time series, an increase in diversity was detected in one of the Arctic areas. In contrast, its Atlantic counterpart showed the opposite trend. These results might indicate that the fishes on the continental slope are moving further in on the shelf, adding richness and diversity to these areas while changing the species composition towards a more Atlantic community. |
format |
Master Thesis |
author |
Born, Mathea |
author_facet |
Born, Mathea |
author_sort |
Born, Mathea |
title |
The Demersal Fish Community on the West Spitsbergen Shelf. Biodiversity, species composition, distribution and temporal changes in relation to climate. |
title_short |
The Demersal Fish Community on the West Spitsbergen Shelf. Biodiversity, species composition, distribution and temporal changes in relation to climate. |
title_full |
The Demersal Fish Community on the West Spitsbergen Shelf. Biodiversity, species composition, distribution and temporal changes in relation to climate. |
title_fullStr |
The Demersal Fish Community on the West Spitsbergen Shelf. Biodiversity, species composition, distribution and temporal changes in relation to climate. |
title_full_unstemmed |
The Demersal Fish Community on the West Spitsbergen Shelf. Biodiversity, species composition, distribution and temporal changes in relation to climate. |
title_sort |
demersal fish community on the west spitsbergen shelf. biodiversity, species composition, distribution and temporal changes in relation to climate. |
publisher |
UiT Norges arktiske universitet |
publishDate |
2020 |
url |
https://hdl.handle.net/10037/19099 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Spitsbergen |
genre_facet |
Arctic Spitsbergen |
op_relation |
https://hdl.handle.net/10037/19099 |
op_rights |
openAccess Copyright 2020 The Author(s) |
_version_ |
1766325225045098496 |