Potential influence of effluents from Longyearbyen on the benthic fauna in Adventfjorden, Svalbard
Benthic macrofaunal communities,sampled in 1998 and 2005 in Adventfjorden, a small sidearm to the Isfjord-complex, were compared. The samples were collected in various distance from the main sewage discharge point from the settlement of Longyearbyen. There has been a huge population increase in Long...
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Universitetet i Tromsø
2007
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ftunivtroemsoe:oai:munin.uit.no:10037/630 2024-06-02T07:54:21+00:00 Potential influence of effluents from Longyearbyen on the benthic fauna in Adventfjorden, Svalbard Dahl, Jan Wiggo 2007-02-22 144786 bytes 155222 bytes application/pdf https://hdl.handle.net/10037/630 eng eng Universitetet i Tromsø University of Tromsø https://hdl.handle.net/10037/630 URN:NBN:no-uit_munin_440 openAccess Copyright 2007 The Author(s) Arctic benthic macrofauna Capitella capitata organic pollution Chaetozone sp VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 Master thesis Mastergradsoppgave 2007 ftunivtroemsoe 2024-05-07T08:40:37Z Benthic macrofaunal communities,sampled in 1998 and 2005 in Adventfjorden, a small sidearm to the Isfjord-complex, were compared. The samples were collected in various distance from the main sewage discharge point from the settlement of Longyearbyen. There has been a huge population increase in Longyearbyen the recent years. From about 1000 residents in the early 90s to almost 2000 in 2006. In addition, there has been a huge increase in overnight stays due to increased tourism. Four locations were sampled each year in order to investigate if the increased organic effluents from Longyearbyen had effected benthic community structure. Univariate (Shannon-Wiener, Pielou, and hurlbert ES 100)and multivariate (Bray- Curtis, MDS,Correspondence analysis and Canonical Correspondence analysis) were conducted. The results showed that diversity indexes were generally low with the lowest values at the innermost locality in 2005. An inner community was recognised with high abundance of especially the opportunistic polychaetes Capitella capitata and Chaetozone sp.Capitella capitata disappear and the abundance of opistobranch Cylichna sp., the polychaete Thyasira gouldi and the contaminant sensitive polychaete maldane sarsi increases towards the fjord mouth. The innermost station in 2005 showed higher influence of organic pollution compared to 1998 indicated by the considerably higher abundance of Capitella capitata. Master Thesis Adventfjorden Arctic Isfjord* Longyearbyen Svalbard University of Tromsø: Munin Open Research Archive Arctic Svalbard Longyearbyen Bray ENVELOPE(-114.067,-114.067,-74.833,-74.833) Isfjord ENVELOPE(-26.917,-26.917,73.333,73.333) Adventfjorden ENVELOPE(15.515,15.515,78.258,78.258) |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
Arctic benthic macrofauna Capitella capitata organic pollution Chaetozone sp VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 |
spellingShingle |
Arctic benthic macrofauna Capitella capitata organic pollution Chaetozone sp VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 Dahl, Jan Wiggo Potential influence of effluents from Longyearbyen on the benthic fauna in Adventfjorden, Svalbard |
topic_facet |
Arctic benthic macrofauna Capitella capitata organic pollution Chaetozone sp VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 |
description |
Benthic macrofaunal communities,sampled in 1998 and 2005 in Adventfjorden, a small sidearm to the Isfjord-complex, were compared. The samples were collected in various distance from the main sewage discharge point from the settlement of Longyearbyen. There has been a huge population increase in Longyearbyen the recent years. From about 1000 residents in the early 90s to almost 2000 in 2006. In addition, there has been a huge increase in overnight stays due to increased tourism. Four locations were sampled each year in order to investigate if the increased organic effluents from Longyearbyen had effected benthic community structure. Univariate (Shannon-Wiener, Pielou, and hurlbert ES 100)and multivariate (Bray- Curtis, MDS,Correspondence analysis and Canonical Correspondence analysis) were conducted. The results showed that diversity indexes were generally low with the lowest values at the innermost locality in 2005. An inner community was recognised with high abundance of especially the opportunistic polychaetes Capitella capitata and Chaetozone sp.Capitella capitata disappear and the abundance of opistobranch Cylichna sp., the polychaete Thyasira gouldi and the contaminant sensitive polychaete maldane sarsi increases towards the fjord mouth. The innermost station in 2005 showed higher influence of organic pollution compared to 1998 indicated by the considerably higher abundance of Capitella capitata. |
format |
Master Thesis |
author |
Dahl, Jan Wiggo |
author_facet |
Dahl, Jan Wiggo |
author_sort |
Dahl, Jan Wiggo |
title |
Potential influence of effluents from Longyearbyen on the benthic fauna in Adventfjorden, Svalbard |
title_short |
Potential influence of effluents from Longyearbyen on the benthic fauna in Adventfjorden, Svalbard |
title_full |
Potential influence of effluents from Longyearbyen on the benthic fauna in Adventfjorden, Svalbard |
title_fullStr |
Potential influence of effluents from Longyearbyen on the benthic fauna in Adventfjorden, Svalbard |
title_full_unstemmed |
Potential influence of effluents from Longyearbyen on the benthic fauna in Adventfjorden, Svalbard |
title_sort |
potential influence of effluents from longyearbyen on the benthic fauna in adventfjorden, svalbard |
publisher |
Universitetet i Tromsø |
publishDate |
2007 |
url |
https://hdl.handle.net/10037/630 |
long_lat |
ENVELOPE(-114.067,-114.067,-74.833,-74.833) ENVELOPE(-26.917,-26.917,73.333,73.333) ENVELOPE(15.515,15.515,78.258,78.258) |
geographic |
Arctic Svalbard Longyearbyen Bray Isfjord Adventfjorden |
geographic_facet |
Arctic Svalbard Longyearbyen Bray Isfjord Adventfjorden |
genre |
Adventfjorden Arctic Isfjord* Longyearbyen Svalbard |
genre_facet |
Adventfjorden Arctic Isfjord* Longyearbyen Svalbard |
op_relation |
https://hdl.handle.net/10037/630 URN:NBN:no-uit_munin_440 |
op_rights |
openAccess Copyright 2007 The Author(s) |
_version_ |
1800753560761139200 |