Apex avian species as sentinels for legacy and emerging contaminants in northern Baltic Sea coastal food webs
Anthropogenic contamination is a wide-spread environmental problem. In addition to persistent, bioaccumulative and toxic legacy contaminants, emerging contaminants with unknown environmental behaviour are causing concern. Many contaminants biomagnify in food webs, meaning that highest concentrations...
Main Author: | |
---|---|
Other Authors: | , , |
Format: | Other/Unknown Material |
Language: | English |
Published: |
Turun yliopisto, University of Turku
2022
|
Subjects: | |
Online Access: | https://www.utupub.fi/handle/10024/173082 |
id |
ftunivturku:oai:www.utupub.fi:10024/173082 |
---|---|
record_format |
openpolar |
spelling |
ftunivturku:oai:www.utupub.fi:10024/173082 2023-05-15T15:55:58+02:00 Apex avian species as sentinels for legacy and emerging contaminants in northern Baltic Sea coastal food webs Vainio, Riikka K. Matemaattis-luonnontieteellinen tiedekunta, Faculty of Science Biologia, Biology Biologian laitos, Department of Biology 2022-12-09 fulltext https://www.utupub.fi/handle/10024/173082 eng eng Turun yliopisto, University of Turku Turun yliopiston julkaisuja -Annales Universitatis Turkuensis, Ser AII: Biologica, Geographica 2343-3183 392 https://www.utupub.fi/handle/10024/173082 URN:ISBN:978-951-29-9080-1 Artikkeliväitöskirja, Doctoral dissertation (article-based) 2022 ftunivturku 2022-12-08T00:00:01Z Anthropogenic contamination is a wide-spread environmental problem. In addition to persistent, bioaccumulative and toxic legacy contaminants, emerging contaminants with unknown environmental behaviour are causing concern. Many contaminants biomagnify in food webs, meaning that highest concentrations of contaminants are found in the apex species. Trophic dynamics of contaminants may differ depending on the properties of the contaminant, environment, and species composing a particular food web. In this thesis, I examine the current state of metal and organohalogen contamination in the Finnish Baltic coastal food webs, focussing on three avian sentinel species: the white-tailed eagle (Haliaeetus albicilla), the great cormorant (Phalacrocorax carbo), and the common eider (Somateria mollissima). In Chapter I, I investigate whether nestlings of white-tailed eagles and great cormorants act as sentinels for metal contamination associated with acidic sulphate soils. Compared to the control areas, I find higher concentrations of aluminium and cobalt in white-tailed eagles and of copper and manganese in great cormorants from the acidic sulphate soil areas. These results indicate that acidic sulphate soils are a source of certain metals for white-tailed eagle and great cormorant nestlings; there are, however, differences in metal exposure between these species. In Chapter II, I study the trophic transfer of mercury (Hg) between the benthic and pelagic food chains of the Archipelago Sea food web. The rate of trophic magnification of Hg was higher in the pelagic food chain than in the benthic food chain when the homeotherm birds were excluded from statistical models. In Chapter III, I investigate organohalogen contamination in the Archipelago Sea food web. I find that several organohalogen compounds biomagnify in the food web. Concentrations were generally highest in bird species, particularly the white-tailed eagle. As with the Hg models, statistical fit of the trophic magnification models of organohalogen compounds ... Other/Unknown Material Common Eider Haliaeetus albicilla Somateria mollissima White-tailed eagle University of Turku: UTUPub |
institution |
Open Polar |
collection |
University of Turku: UTUPub |
op_collection_id |
ftunivturku |
language |
English |
description |
Anthropogenic contamination is a wide-spread environmental problem. In addition to persistent, bioaccumulative and toxic legacy contaminants, emerging contaminants with unknown environmental behaviour are causing concern. Many contaminants biomagnify in food webs, meaning that highest concentrations of contaminants are found in the apex species. Trophic dynamics of contaminants may differ depending on the properties of the contaminant, environment, and species composing a particular food web. In this thesis, I examine the current state of metal and organohalogen contamination in the Finnish Baltic coastal food webs, focussing on three avian sentinel species: the white-tailed eagle (Haliaeetus albicilla), the great cormorant (Phalacrocorax carbo), and the common eider (Somateria mollissima). In Chapter I, I investigate whether nestlings of white-tailed eagles and great cormorants act as sentinels for metal contamination associated with acidic sulphate soils. Compared to the control areas, I find higher concentrations of aluminium and cobalt in white-tailed eagles and of copper and manganese in great cormorants from the acidic sulphate soil areas. These results indicate that acidic sulphate soils are a source of certain metals for white-tailed eagle and great cormorant nestlings; there are, however, differences in metal exposure between these species. In Chapter II, I study the trophic transfer of mercury (Hg) between the benthic and pelagic food chains of the Archipelago Sea food web. The rate of trophic magnification of Hg was higher in the pelagic food chain than in the benthic food chain when the homeotherm birds were excluded from statistical models. In Chapter III, I investigate organohalogen contamination in the Archipelago Sea food web. I find that several organohalogen compounds biomagnify in the food web. Concentrations were generally highest in bird species, particularly the white-tailed eagle. As with the Hg models, statistical fit of the trophic magnification models of organohalogen compounds ... |
author2 |
Matemaattis-luonnontieteellinen tiedekunta, Faculty of Science Biologia, Biology Biologian laitos, Department of Biology |
format |
Other/Unknown Material |
author |
Vainio, Riikka K. |
spellingShingle |
Vainio, Riikka K. Apex avian species as sentinels for legacy and emerging contaminants in northern Baltic Sea coastal food webs |
author_facet |
Vainio, Riikka K. |
author_sort |
Vainio, Riikka K. |
title |
Apex avian species as sentinels for legacy and emerging contaminants in northern Baltic Sea coastal food webs |
title_short |
Apex avian species as sentinels for legacy and emerging contaminants in northern Baltic Sea coastal food webs |
title_full |
Apex avian species as sentinels for legacy and emerging contaminants in northern Baltic Sea coastal food webs |
title_fullStr |
Apex avian species as sentinels for legacy and emerging contaminants in northern Baltic Sea coastal food webs |
title_full_unstemmed |
Apex avian species as sentinels for legacy and emerging contaminants in northern Baltic Sea coastal food webs |
title_sort |
apex avian species as sentinels for legacy and emerging contaminants in northern baltic sea coastal food webs |
publisher |
Turun yliopisto, University of Turku |
publishDate |
2022 |
url |
https://www.utupub.fi/handle/10024/173082 |
genre |
Common Eider Haliaeetus albicilla Somateria mollissima White-tailed eagle |
genre_facet |
Common Eider Haliaeetus albicilla Somateria mollissima White-tailed eagle |
op_relation |
Turun yliopiston julkaisuja -Annales Universitatis Turkuensis, Ser AII: Biologica, Geographica 2343-3183 392 https://www.utupub.fi/handle/10024/173082 URN:ISBN:978-951-29-9080-1 |
_version_ |
1766391446567387136 |