Temporal trends of POPs in arctic foxes from Svalbard in light of a changing climate
The present study investigates concentrations and temporal trends of persistent organic pollutants (POPs) in arctic foxes (Vulpes lagopus) from Svalbard, Norway, adjusted for sex, age, body condition, diet, reindeer mortality and sea ice coverage. Number of reindeer carcasses in Adventdalen and sea...
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UiT Norges arktiske universitet
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ftunivtroemsoe:oai:munin.uit.no:10037/5859 2023-05-15T13:05:48+02:00 Temporal trends of POPs in arctic foxes from Svalbard in light of a changing climate Andersen, Martin Solhøi 2013-11-15 https://hdl.handle.net/10037/5859 eng eng UiT Norges arktiske universitet UiT The Arctic University of Norway https://hdl.handle.net/10037/5859 URN:NBN:no-uit_munin_5552 openAccess Copyright 2013 The Author(s) VDP::Matematikk og Naturvitenskap: 400::Basale biofag: 470::Biokjemi: 476 VDP::Mathematics and natural science: 400::Basic biosciences: 470::Biochemistry: 476 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 BIO-3950 Master thesis Mastergradsoppgave 2013 ftunivtroemsoe 2021-06-25T17:53:47Z The present study investigates concentrations and temporal trends of persistent organic pollutants (POPs) in arctic foxes (Vulpes lagopus) from Svalbard, Norway, adjusted for sex, age, body condition, diet, reindeer mortality and sea ice coverage. Number of reindeer carcasses in Adventdalen and sea ice coverage of Isfjorden in the spring preceding the trapping season were used as indexes for climate influenced food availability between years. We analysed liver of 100 foxes from Svalbard, collected in 1997/98, 1998/99, 1999/00, 2001/02, 2002/03, 2003/04 and 2010/11 for concentrations of polychlorinated biphenyls (PCBs; PCB -28, -52, -101, -118, -138, -153 and -180), chlordanes (cis-chlordane, trans-nonachlor and oxychlordane), p-p’-DDT, p-p’-DDE, HCB, mirex and β-HCH. The POPs found in highest concentrations were oxychlordane, PCB-180 and PCB-153. We found evidence for a temporal decrease in ∑PCBs (PCB -118, -138, -153, -180), and ∑chlordanes (trans-nonachlor and oxychlordane) when controlling for possible confounding variables. We also found evidence for an effect of body condition and δ13C on the POP concentrations, as thinner foxes and foxes feeding from the marine food web had significantly higher levels of POPs. There was no evidence for effects of sex, age, reindeer mortality and sea ice coverage on the concentrations of POPs, although increased reindeer mortality had a non-significant negative effect on all the POPs analysed. This study shows that correcting for body condition and diet is vital when investigating temporal trends of POPs in biota. It also illustrates some of the difficulties of investigating POP concentrations in an arctic predator living in an environment influenced by climatic variations. Master Thesis Adventdalen Arctic Isfjord* Isfjorden Sea ice Svalbard Vulpes lagopus University of Tromsø: Munin Open Research Archive Arctic Svalbard Norway Adventdalen ENVELOPE(16.264,16.264,78.181,78.181) |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Matematikk og Naturvitenskap: 400::Basale biofag: 470::Biokjemi: 476 VDP::Mathematics and natural science: 400::Basic biosciences: 470::Biochemistry: 476 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 BIO-3950 |
spellingShingle |
VDP::Matematikk og Naturvitenskap: 400::Basale biofag: 470::Biokjemi: 476 VDP::Mathematics and natural science: 400::Basic biosciences: 470::Biochemistry: 476 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 BIO-3950 Andersen, Martin Solhøi Temporal trends of POPs in arctic foxes from Svalbard in light of a changing climate |
topic_facet |
VDP::Matematikk og Naturvitenskap: 400::Basale biofag: 470::Biokjemi: 476 VDP::Mathematics and natural science: 400::Basic biosciences: 470::Biochemistry: 476 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 BIO-3950 |
description |
The present study investigates concentrations and temporal trends of persistent organic pollutants (POPs) in arctic foxes (Vulpes lagopus) from Svalbard, Norway, adjusted for sex, age, body condition, diet, reindeer mortality and sea ice coverage. Number of reindeer carcasses in Adventdalen and sea ice coverage of Isfjorden in the spring preceding the trapping season were used as indexes for climate influenced food availability between years. We analysed liver of 100 foxes from Svalbard, collected in 1997/98, 1998/99, 1999/00, 2001/02, 2002/03, 2003/04 and 2010/11 for concentrations of polychlorinated biphenyls (PCBs; PCB -28, -52, -101, -118, -138, -153 and -180), chlordanes (cis-chlordane, trans-nonachlor and oxychlordane), p-p’-DDT, p-p’-DDE, HCB, mirex and β-HCH. The POPs found in highest concentrations were oxychlordane, PCB-180 and PCB-153. We found evidence for a temporal decrease in ∑PCBs (PCB -118, -138, -153, -180), and ∑chlordanes (trans-nonachlor and oxychlordane) when controlling for possible confounding variables. We also found evidence for an effect of body condition and δ13C on the POP concentrations, as thinner foxes and foxes feeding from the marine food web had significantly higher levels of POPs. There was no evidence for effects of sex, age, reindeer mortality and sea ice coverage on the concentrations of POPs, although increased reindeer mortality had a non-significant negative effect on all the POPs analysed. This study shows that correcting for body condition and diet is vital when investigating temporal trends of POPs in biota. It also illustrates some of the difficulties of investigating POP concentrations in an arctic predator living in an environment influenced by climatic variations. |
format |
Master Thesis |
author |
Andersen, Martin Solhøi |
author_facet |
Andersen, Martin Solhøi |
author_sort |
Andersen, Martin Solhøi |
title |
Temporal trends of POPs in arctic foxes from Svalbard in light of a changing climate |
title_short |
Temporal trends of POPs in arctic foxes from Svalbard in light of a changing climate |
title_full |
Temporal trends of POPs in arctic foxes from Svalbard in light of a changing climate |
title_fullStr |
Temporal trends of POPs in arctic foxes from Svalbard in light of a changing climate |
title_full_unstemmed |
Temporal trends of POPs in arctic foxes from Svalbard in light of a changing climate |
title_sort |
temporal trends of pops in arctic foxes from svalbard in light of a changing climate |
publisher |
UiT Norges arktiske universitet |
publishDate |
2013 |
url |
https://hdl.handle.net/10037/5859 |
long_lat |
ENVELOPE(16.264,16.264,78.181,78.181) |
geographic |
Arctic Svalbard Norway Adventdalen |
geographic_facet |
Arctic Svalbard Norway Adventdalen |
genre |
Adventdalen Arctic Isfjord* Isfjorden Sea ice Svalbard Vulpes lagopus |
genre_facet |
Adventdalen Arctic Isfjord* Isfjorden Sea ice Svalbard Vulpes lagopus |
op_relation |
https://hdl.handle.net/10037/5859 URN:NBN:no-uit_munin_5552 |
op_rights |
openAccess Copyright 2013 The Author(s) |
_version_ |
1766394068661698560 |