Methylmercury biomagnification in an Arctic pelagic food web
Mercury (Hg) is a toxic element that enters the biosphere from natural and anthropogenic sources, and emitted gaseous Hg enters the Arctic from lower latitudes by long-range transport. In aquatic systems, anoxic conditions favor the bacterial transformation of inorganic Hg to methylmercury (MeHg), w...
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ftoslouniv:oai:www.duo.uio.no:10852/66501 2023-05-15T14:27:58+02:00 Methylmercury biomagnification in an Arctic pelagic food web ENEngelskEnglishMethylmercury biomagnification in an Arctic pelagic food web Ruus, Anders Øverjordet, Ida Beathe Braaten, Hans Fredrik Veiteberg Evenset, Anita Christensen, Guttorm N. Heimstad, Eldbjørg Sofie Gabrielsen, Geir W. Borgå, Katrine 2015-12-22T19:21:54Z http://hdl.handle.net/10852/66501 http://urn.nb.no/URN:NBN:no-69703 https://doi.org/10.1002/etc.3143 EN eng Pergamon Press FRAM/Hazardous Substances—Effects on Ecosystem and Health NFR/234388 NFR/176073 http://urn.nb.no/URN:NBN:no-69703 Ruus, Anders Øverjordet, Ida Beathe Braaten, Hans Fredrik Veiteberg Evenset, Anita Christensen, Guttorm N. Heimstad, Eldbjørg Sofie Gabrielsen, Geir W. Borgå, Katrine . Methylmercury biomagnification in an Arctic pelagic food web. Environmental Toxicology and Chemistry. 2015, 34(11), 2636-2643 http://hdl.handle.net/10852/66501 1303989 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Environmental Toxicology and Chemistry&rft.volume=34&rft.spage=2636&rft.date=2015 Environmental Toxicology and Chemistry 34 11 2636 2643 http://dx.doi.org/10.1002/etc.3143 URN:NBN:no-69703 Fulltext https://www.duo.uio.no/bitstream/handle/10852/66501/1/1303989.pdf 0730-7268 Journal article Tidsskriftartikkel Peer reviewed AcceptedVersion 2015 ftoslouniv https://doi.org/10.1002/etc.3143 2020-06-21T08:52:30Z Mercury (Hg) is a toxic element that enters the biosphere from natural and anthropogenic sources, and emitted gaseous Hg enters the Arctic from lower latitudes by long-range transport. In aquatic systems, anoxic conditions favor the bacterial transformation of inorganic Hg to methylmercury (MeHg), which has a greater potential for bioaccumulation than inorganic Hg and is the most toxic form of Hg. The main objective of the present study was to quantify the biomagnification of MeHg in a marine pelagic food web, comprising species of zooplankton, fish, and seabirds, from the Kongsfjorden system (Svalbard, Norway), by use of trophic magnification factors. As expected, tissue concentrations of MeHg increased with increasing trophic level in the food web, though at greater rates than observed in several earlier studies, especially at lower latitudes. There was strong correlation between MeHg and total Hg concentrations through the food web as a whole. The concentration of MeHg in kittiwake decreased from May to October, contributing to seasonal differences in trophic magnification factors. The ecology and physiology of the species comprising the food web in question may have a large influence on the magnitude of the biomagnification. A significant linear relationship was also observed between concentrations of selenium and total Hg in birds but not in zooplankton, suggesting the importance of selenium in Hg detoxification for individuals with high Hg concentrations. Environ Toxicol Chem 2015;34:2636–2643. © 2015 SETAC Article in Journal/Newspaper Arctic Arctic Kongsfjord* Kongsfjorden Svalbard Zooplankton Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Arctic Svalbard Norway Environmental Toxicology and Chemistry 34 11 2636 2643 |
institution |
Open Polar |
collection |
Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
op_collection_id |
ftoslouniv |
language |
English |
description |
Mercury (Hg) is a toxic element that enters the biosphere from natural and anthropogenic sources, and emitted gaseous Hg enters the Arctic from lower latitudes by long-range transport. In aquatic systems, anoxic conditions favor the bacterial transformation of inorganic Hg to methylmercury (MeHg), which has a greater potential for bioaccumulation than inorganic Hg and is the most toxic form of Hg. The main objective of the present study was to quantify the biomagnification of MeHg in a marine pelagic food web, comprising species of zooplankton, fish, and seabirds, from the Kongsfjorden system (Svalbard, Norway), by use of trophic magnification factors. As expected, tissue concentrations of MeHg increased with increasing trophic level in the food web, though at greater rates than observed in several earlier studies, especially at lower latitudes. There was strong correlation between MeHg and total Hg concentrations through the food web as a whole. The concentration of MeHg in kittiwake decreased from May to October, contributing to seasonal differences in trophic magnification factors. The ecology and physiology of the species comprising the food web in question may have a large influence on the magnitude of the biomagnification. A significant linear relationship was also observed between concentrations of selenium and total Hg in birds but not in zooplankton, suggesting the importance of selenium in Hg detoxification for individuals with high Hg concentrations. Environ Toxicol Chem 2015;34:2636–2643. © 2015 SETAC |
format |
Article in Journal/Newspaper |
author |
Ruus, Anders Øverjordet, Ida Beathe Braaten, Hans Fredrik Veiteberg Evenset, Anita Christensen, Guttorm N. Heimstad, Eldbjørg Sofie Gabrielsen, Geir W. Borgå, Katrine |
spellingShingle |
Ruus, Anders Øverjordet, Ida Beathe Braaten, Hans Fredrik Veiteberg Evenset, Anita Christensen, Guttorm N. Heimstad, Eldbjørg Sofie Gabrielsen, Geir W. Borgå, Katrine Methylmercury biomagnification in an Arctic pelagic food web |
author_facet |
Ruus, Anders Øverjordet, Ida Beathe Braaten, Hans Fredrik Veiteberg Evenset, Anita Christensen, Guttorm N. Heimstad, Eldbjørg Sofie Gabrielsen, Geir W. Borgå, Katrine |
author_sort |
Ruus, Anders |
title |
Methylmercury biomagnification in an Arctic pelagic food web |
title_short |
Methylmercury biomagnification in an Arctic pelagic food web |
title_full |
Methylmercury biomagnification in an Arctic pelagic food web |
title_fullStr |
Methylmercury biomagnification in an Arctic pelagic food web |
title_full_unstemmed |
Methylmercury biomagnification in an Arctic pelagic food web |
title_sort |
methylmercury biomagnification in an arctic pelagic food web |
publisher |
Pergamon Press |
publishDate |
2015 |
url |
http://hdl.handle.net/10852/66501 http://urn.nb.no/URN:NBN:no-69703 https://doi.org/10.1002/etc.3143 |
geographic |
Arctic Svalbard Norway |
geographic_facet |
Arctic Svalbard Norway |
genre |
Arctic Arctic Kongsfjord* Kongsfjorden Svalbard Zooplankton |
genre_facet |
Arctic Arctic Kongsfjord* Kongsfjorden Svalbard Zooplankton |
op_source |
0730-7268 |
op_relation |
FRAM/Hazardous Substances—Effects on Ecosystem and Health NFR/234388 NFR/176073 http://urn.nb.no/URN:NBN:no-69703 Ruus, Anders Øverjordet, Ida Beathe Braaten, Hans Fredrik Veiteberg Evenset, Anita Christensen, Guttorm N. Heimstad, Eldbjørg Sofie Gabrielsen, Geir W. Borgå, Katrine . Methylmercury biomagnification in an Arctic pelagic food web. Environmental Toxicology and Chemistry. 2015, 34(11), 2636-2643 http://hdl.handle.net/10852/66501 1303989 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Environmental Toxicology and Chemistry&rft.volume=34&rft.spage=2636&rft.date=2015 Environmental Toxicology and Chemistry 34 11 2636 2643 http://dx.doi.org/10.1002/etc.3143 URN:NBN:no-69703 Fulltext https://www.duo.uio.no/bitstream/handle/10852/66501/1/1303989.pdf |
op_doi |
https://doi.org/10.1002/etc.3143 |
container_title |
Environmental Toxicology and Chemistry |
container_volume |
34 |
container_issue |
11 |
container_start_page |
2636 |
op_container_end_page |
2643 |
_version_ |
1766302076869017600 |