Seasonal pollutant levels in littoral high-Arctic amphipods in relation to food sources and terrestrial run-off
Increasing terrestrial run-off from melting glaciers and thawing permafrost to Arctic coastal areas is expected to facilitate re-mobilization of stored legacy persistent organic pollutants (POPs) and mercury (Hg), potentially increasing exposure to these contaminants for coastal benthic organisms. W...
Published in: | Environmental Pollution |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2022
|
Subjects: | |
Online Access: | http://hdl.handle.net/10852/94556 http://urn.nb.no/URN:NBN:no-97074 https://doi.org/10.1016/j.envpol.2022.119361 |
id |
ftoslouniv:oai:www.duo.uio.no:10852/94556 |
---|---|
record_format |
openpolar |
spelling |
ftoslouniv:oai:www.duo.uio.no:10852/94556 2023-05-15T14:27:43+02:00 Seasonal pollutant levels in littoral high-Arctic amphipods in relation to food sources and terrestrial run-off ENEngelskEnglishSeasonal pollutant levels in littoral high-Arctic amphipods in relation to food sources and terrestrial run-off Skogsberg, Stina Linnea Emelie Mcgovern, Maeve Poste, Amanda Jonsson, Sofi Arts, Michael T. Varpe, Øystein Borgå, Katrine 2022-05-10T15:37:06Z http://hdl.handle.net/10852/94556 http://urn.nb.no/URN:NBN:no-97074 https://doi.org/10.1016/j.envpol.2022.119361 EN eng NFR/268458 http://urn.nb.no/URN:NBN:no-97074 Skogsberg, Stina Linnea Emelie Mcgovern, Maeve Poste, Amanda Jonsson, Sofi Arts, Michael T. Varpe, Øystein Borgå, Katrine . Seasonal pollutant levels in littoral high-Arctic amphipods in relation to food sources and terrestrial run-off. Environmental Pollution (1987). 2022, 306 http://hdl.handle.net/10852/94556 2023200 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Environmental Pollution (1987)&rft.volume=306&rft.spage=&rft.date=2022 Environmental Pollution (1987) 306 11 https://doi.org/10.1016/j.envpol.2022.119361 URN:NBN:no-97074 Fulltext https://www.duo.uio.no/bitstream/handle/10852/94556/1/1-s2.0-S0269749122005759-main.pdf Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ CC-BY 0269-7491 Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2022 ftoslouniv https://doi.org/10.1016/j.envpol.2022.119361 2022-07-06T22:34:15Z Increasing terrestrial run-off from melting glaciers and thawing permafrost to Arctic coastal areas is expected to facilitate re-mobilization of stored legacy persistent organic pollutants (POPs) and mercury (Hg), potentially increasing exposure to these contaminants for coastal benthic organisms. We quantified chlorinated POPs and Hg concentrations, lipid content and multiple dietary markers, in a littoral deposit-feeding amphipod Gammarus setosus and sediments during the melting period from April to August in Adventelva river estuary in Svalbard, a Norwegian Arctic Aarchipelago. There was an overall decrease in concentrations of ∑POPs from April to August (from 58 ± 23 to 13 ± 4 ng/g lipid weight; lw), Hg (from 5.6 ± 0.7 to 4.1 ± 0.5 ng/g dry weight; dw) and Methyl Hg (MeHg) (from 5 ± 1 to 0.8 ± 0.7 ng/g dw) in G. setosus. However, we observed a seasonal peak in penta- and hexachlorobenzene (PeCB and HCB) in May (2.44 ± 0.3 and 23.6 ± 1.7 ng/g lw). Sediment concentrations of POPs and Hg (dw) only partly correlated with the contaminant concentrations in G. setosus. Dietary markers, including fatty acids and carbon and nitrogen stable isotopes, indicated a diet of settled phytoplankton in May–July and a broader range of carbon sources after the spring bloom. Phytoplankton utilization and chlorobenzene concentrations in G. setosus exhibited similar seasonal patterns, suggesting a dietary uptake of chlorobenzenes that is delivered to the aquatic environment during spring snowmelt. The seasonal decrease in contaminant concentrations in G. setosus could be related to seasonal changes in dietary contaminant exposure and amphipod ecology. Furthermore, this decrease implies that terrestrial run-off is not a significant source of re-mobilized Hg and legacy POPs to littoral amphipods in the Adventelva river estuary during the melt season. Article in Journal/Newspaper Arctic Arctic permafrost Phytoplankton Svalbard Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Adventelva ENVELOPE(15.934,15.934,78.188,78.188) Arctic Svalbard Environmental Pollution 306 119361 |
institution |
Open Polar |
collection |
Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
op_collection_id |
ftoslouniv |
language |
English |
description |
Increasing terrestrial run-off from melting glaciers and thawing permafrost to Arctic coastal areas is expected to facilitate re-mobilization of stored legacy persistent organic pollutants (POPs) and mercury (Hg), potentially increasing exposure to these contaminants for coastal benthic organisms. We quantified chlorinated POPs and Hg concentrations, lipid content and multiple dietary markers, in a littoral deposit-feeding amphipod Gammarus setosus and sediments during the melting period from April to August in Adventelva river estuary in Svalbard, a Norwegian Arctic Aarchipelago. There was an overall decrease in concentrations of ∑POPs from April to August (from 58 ± 23 to 13 ± 4 ng/g lipid weight; lw), Hg (from 5.6 ± 0.7 to 4.1 ± 0.5 ng/g dry weight; dw) and Methyl Hg (MeHg) (from 5 ± 1 to 0.8 ± 0.7 ng/g dw) in G. setosus. However, we observed a seasonal peak in penta- and hexachlorobenzene (PeCB and HCB) in May (2.44 ± 0.3 and 23.6 ± 1.7 ng/g lw). Sediment concentrations of POPs and Hg (dw) only partly correlated with the contaminant concentrations in G. setosus. Dietary markers, including fatty acids and carbon and nitrogen stable isotopes, indicated a diet of settled phytoplankton in May–July and a broader range of carbon sources after the spring bloom. Phytoplankton utilization and chlorobenzene concentrations in G. setosus exhibited similar seasonal patterns, suggesting a dietary uptake of chlorobenzenes that is delivered to the aquatic environment during spring snowmelt. The seasonal decrease in contaminant concentrations in G. setosus could be related to seasonal changes in dietary contaminant exposure and amphipod ecology. Furthermore, this decrease implies that terrestrial run-off is not a significant source of re-mobilized Hg and legacy POPs to littoral amphipods in the Adventelva river estuary during the melt season. |
format |
Article in Journal/Newspaper |
author |
Skogsberg, Stina Linnea Emelie Mcgovern, Maeve Poste, Amanda Jonsson, Sofi Arts, Michael T. Varpe, Øystein Borgå, Katrine |
spellingShingle |
Skogsberg, Stina Linnea Emelie Mcgovern, Maeve Poste, Amanda Jonsson, Sofi Arts, Michael T. Varpe, Øystein Borgå, Katrine Seasonal pollutant levels in littoral high-Arctic amphipods in relation to food sources and terrestrial run-off |
author_facet |
Skogsberg, Stina Linnea Emelie Mcgovern, Maeve Poste, Amanda Jonsson, Sofi Arts, Michael T. Varpe, Øystein Borgå, Katrine |
author_sort |
Skogsberg, Stina Linnea Emelie |
title |
Seasonal pollutant levels in littoral high-Arctic amphipods in relation to food sources and terrestrial run-off |
title_short |
Seasonal pollutant levels in littoral high-Arctic amphipods in relation to food sources and terrestrial run-off |
title_full |
Seasonal pollutant levels in littoral high-Arctic amphipods in relation to food sources and terrestrial run-off |
title_fullStr |
Seasonal pollutant levels in littoral high-Arctic amphipods in relation to food sources and terrestrial run-off |
title_full_unstemmed |
Seasonal pollutant levels in littoral high-Arctic amphipods in relation to food sources and terrestrial run-off |
title_sort |
seasonal pollutant levels in littoral high-arctic amphipods in relation to food sources and terrestrial run-off |
publishDate |
2022 |
url |
http://hdl.handle.net/10852/94556 http://urn.nb.no/URN:NBN:no-97074 https://doi.org/10.1016/j.envpol.2022.119361 |
long_lat |
ENVELOPE(15.934,15.934,78.188,78.188) |
geographic |
Adventelva Arctic Svalbard |
geographic_facet |
Adventelva Arctic Svalbard |
genre |
Arctic Arctic permafrost Phytoplankton Svalbard |
genre_facet |
Arctic Arctic permafrost Phytoplankton Svalbard |
op_source |
0269-7491 |
op_relation |
NFR/268458 http://urn.nb.no/URN:NBN:no-97074 Skogsberg, Stina Linnea Emelie Mcgovern, Maeve Poste, Amanda Jonsson, Sofi Arts, Michael T. Varpe, Øystein Borgå, Katrine . Seasonal pollutant levels in littoral high-Arctic amphipods in relation to food sources and terrestrial run-off. Environmental Pollution (1987). 2022, 306 http://hdl.handle.net/10852/94556 2023200 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Environmental Pollution (1987)&rft.volume=306&rft.spage=&rft.date=2022 Environmental Pollution (1987) 306 11 https://doi.org/10.1016/j.envpol.2022.119361 URN:NBN:no-97074 Fulltext https://www.duo.uio.no/bitstream/handle/10852/94556/1/1-s2.0-S0269749122005759-main.pdf |
op_rights |
Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1016/j.envpol.2022.119361 |
container_title |
Environmental Pollution |
container_volume |
306 |
container_start_page |
119361 |
_version_ |
1766301562095796224 |