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Interactions between Pollutant Exposure and the Physiology in Adult Kittiwakes (Rissa tridactyla) at Svalbard.

https://arctichealth.org/en/permalink/ahliterature297156
Source
Norwegian University of Science and Technology. Department of Biology. xii, 53 p.
Publication Type
Dissertation
Date
2015
Interactions between Pollutant Exposure and the Physiology in Adult Kittiwakes (Rissa tridactyla) at Svalbard Niels Borup Svendsen Environmental Toxicology and Chemistry Supervisor: Veerle Jaspers, IBI Co-supervisor: Geir Wing Gabrielsen, Norsk Polarinstitutt Claus Bech, IBI Mikael Harju
  1 document  
Author
Svendsen, Niels Borup
Source
Norwegian University of Science and Technology. Department of Biology. xii, 53 p.
Date
2015
Language
English
Geographic Location
Norway
Publication Type
Dissertation
File Size
1326344
Keywords
Svalbard
Black-legged kittiwakes
Polychlorinated Biphenyls (PCBs)
Polybrominated diphenylethers (PBDEs)
Organochlorine pesticides (OCPs)
Phosphorous flame retardants (PFRs)
Abstract
The present study investigated the use of feathers as a useful non-destructive biomonitoring tool for novel organic pollutants in black-legged kittiwakes (Rissa tridactyla), and evaluated the interaction of both novel and legacy pollutants on body condition and thyroid hormones. In July and August 2014, feather and blood samples were collected from 20 black-legged kittiwakes (Rissa tridactyla) at two colonies (Blomstrandhalvøya and Krykkjefjellet) in Kongsfjorden, Svalbard. Samples were analyzed for polychlorinated biphenyls (PCBs), polybrominated diphenylethers (PBDEs), organochlorine pesticides (OCPs) and phosphorous flame retardants (PFRs).
All compound classes were detected and quantified in feathers ranging from
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Perfluoroalkyl and Polyfluoroalkyl Substances (PFASs) Affect the Thyroid Hormone System, Body Condition, and Body Mass in Two Arctic Seabird Species.

https://arctichealth.org/en/permalink/ahliterature297154
Source
Norwegian University of Science and Technology. Department of Biology. xii, 60 p.
Publication Type
Dissertation
Date
2015
Cover photo: Black-legged kittiwakes. Photo: Amalie V. Ask. III Acknowledgements First of all I need to thank all the kittiwakes and arctic skuas who, albeit somewhat reluctantly, have been part of this study. I want to express my sincere gratitude and appreciation to my
  1 document  
Author
Ask, Amalie Vigdel
Source
Norwegian University of Science and Technology. Department of Biology. xii, 60 p.
Date
2015
Language
English
Publication Type
Dissertation
File Size
1810790
Keywords
Arctic
Wildlife
Perfluoroalkyl and polyfluoroalkyl substances (PFASs)
Thyroid
Kittiwakes
Arctic skuas
Abstract
Perfluoroalkyl and polyfluoroalkyl substances (PFASs) are being transported into the Arctic where they are frequently detected in wildlife. These compounds are suspected thyroid hormone (TH) disruptors due to their structural similarity to triiodothyronine (T3) and thyroxine (T4), in addition to their propensity to bind to proteins. Therefore, PFASs may affect THs by competitive binding to the thyroid binding proteins in the blood. The aim of the study was to investigate the concentrations of PFASs and THs, and examine effects of PFASs on THs, body condition, and body mass in black-legged kittiwakes (Rissa tridactyla) and arctic skuas (Stercorarius parasiticus).
Blood was collected from breeding black-legged kittiwakes and arctic skuas. Black-legged kittiwakes (hereafter kittiwakes) were sampled in Kongsfjorden, Svalbard in 2013 and 2014. Arctic skuas were sampled on Brensholmen, Norway and in Kongsfjorden in 2014. The blood was analyzed for perfluorohexanoate (PFHxA), perfluoroheptanoate (PFHpA), perfluorooctanoate (PFOA), perfluorononanoate (PFNA), perfluorodecanoate (PFDA), perfluoroundecanoate (PFUnDA), perfluorododecanoate (PFDoDA), perfluorotridecanoate (PFTrDA), perfluorotetradecanoate (PFTeDA), perfluorohexane sulfonate anion (PFHxS), branched and linear perfluorooctane sulfonate anion (brPFOS and linPFOS), perfluorodecane sulfonate anion (PFDS), and perfluorooctane sulfonamide (FOSA). The analyses were performed on plasma samples for the black-legged kittiwakes and on whole blood samples for the arctic skuas. PFHxA, PFHpA, PFOA, PFDS, and PFHxS were not detected in either bird species. Furthermore, total THs (TT3 and TT4) were quantified from plasma samples in both species. The resulting data was analyzed statistically to examine if there were associations between PFASs, THs, body condition (BC), and body mass.
The dominant PFASs in both kittiwakes and arctic skuas were linPFOS and PFUnDA. In both species, males generally had significantly higher concentrations of PFASs than the females. Furthermore, positive correlations between PFASs and THs were identified in both kittiwakes and arctic skuas. Male kittiwakes with high levels of PFDoDA, PFTrDA, and PFTeDA were in a better body condition than males with lower levels. Conversely, in female kittiwakes and male arctic skuas PFASs were negatively correlated to BC and body mass. The results indicate that PFASs affect the thyroid system, BC, and body mass in the two seabird species.
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