Lead concentrations in blood from incubating common eiders (Somateria mollissima) in the Baltic Sea
Here we investigate if lead may be a contributing factor to the observed population decline in a Baltic colony of incubating eiders (Somateria mollissima). Body mass and blood samples were obtained from 50 incubating female eiders at the Baltic breeding colony on Christiansø during spring 2017 (n =...
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ftdoajarticles:oai:doaj.org/article:2a14b039435346b4a1d4aa2fb3bddc50 2023-05-15T18:20:26+02:00 Lead concentrations in blood from incubating common eiders (Somateria mollissima) in the Baltic Sea Su Shiung Lam Molly McPartland Brenley Noori Svend-Erik Garbus Syverin Lierhagen Peter Lyngs Rune Dietz Ole Roland Therkildsen Thomas Kjær Christensen Rune Skjold Tjørnløv Niels Kanstrup Anthony D. Fox Iben Hove Sørensen Céline Arzel Åse Krøkje Christian Sonne 2020-04-01T00:00:00Z https://doi.org/10.1016/j.envint.2020.105582 https://doaj.org/article/2a14b039435346b4a1d4aa2fb3bddc50 EN eng Elsevier http://www.sciencedirect.com/science/article/pii/S016041201933675X https://doaj.org/toc/0160-4120 0160-4120 doi:10.1016/j.envint.2020.105582 https://doaj.org/article/2a14b039435346b4a1d4aa2fb3bddc50 Environment International, Vol 137, Iss , Pp - (2020) Environmental sciences GE1-350 article 2020 ftdoajarticles https://doi.org/10.1016/j.envint.2020.105582 2022-12-31T14:58:01Z Here we investigate if lead may be a contributing factor to the observed population decline in a Baltic colony of incubating eiders (Somateria mollissima). Body mass and blood samples were obtained from 50 incubating female eiders at the Baltic breeding colony on Christiansø during spring 2017 (n = 27) and 2018 (n = 23). All the females were sampled twice during early (day 4) and late (day 24) incubation. The full blood was analysed for lead to investigate if the concentrations exceeded toxic thresholds or changed over the incubation period due to remobilisation from bones and liver tissue. Body mass, hatch date and number of chicks were also analysed with respect to lead concentrations. The body mass (mean ± SD g) increased significantly in the order: day 24 in 2018 (1561 ± 154 g) < day 24 in 2017 (1618 ± 156 g) < day 4 in 2018 (2183 ± 140 g) < day 4 in 2017 (2359 ± 167 g) (all p < 0.001). The lead concentrations increased significantly in the opposite order i.e. day 4 in 2017 (41.7 ± 67.1 μg/L) < day 24 in 2017 (55.4 ± 66.8 μg/L) < day 4 in 2018 (177 ± 196 μg/L) < day 24 in 2018 (258 ± 243) (all p < 0.001). From day 4 to 24, the eider females had a 1.33-fold increase in blood lead concentrations in 2017 and a 1.46-fold increase in 2018. Three of the birds (13%) sampled in 2018 had lead concentrations that exceeded concentrations of clinical poisoning (500 μg/L) and eleven (48%) had concentrations that exceeded the threshold for subclinical poisoning (200 μg/L). In 2017, none of the birds exceeded the high toxic threshold of clinical poisoning while only one (4%) exceeded the lower threshold for subclinical poisoning. Three of the birds (6%) sampled in 2018 had lead concentrations that exceeded those of clinical poisoning while 12 birds (24%) resampled in both years exceeded the threshold for subclinical poisoning. In addition, lead concentrations and body mass on day 4 affected hatch date positively in 2018 (both p < 0.03) but not in 2017. These results show that bioavailable lead in ... Article in Journal/Newspaper Somateria mollissima Directory of Open Access Journals: DOAJ Articles Environment International 137 105582 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 |
spellingShingle |
Environmental sciences GE1-350 Su Shiung Lam Molly McPartland Brenley Noori Svend-Erik Garbus Syverin Lierhagen Peter Lyngs Rune Dietz Ole Roland Therkildsen Thomas Kjær Christensen Rune Skjold Tjørnløv Niels Kanstrup Anthony D. Fox Iben Hove Sørensen Céline Arzel Åse Krøkje Christian Sonne Lead concentrations in blood from incubating common eiders (Somateria mollissima) in the Baltic Sea |
topic_facet |
Environmental sciences GE1-350 |
description |
Here we investigate if lead may be a contributing factor to the observed population decline in a Baltic colony of incubating eiders (Somateria mollissima). Body mass and blood samples were obtained from 50 incubating female eiders at the Baltic breeding colony on Christiansø during spring 2017 (n = 27) and 2018 (n = 23). All the females were sampled twice during early (day 4) and late (day 24) incubation. The full blood was analysed for lead to investigate if the concentrations exceeded toxic thresholds or changed over the incubation period due to remobilisation from bones and liver tissue. Body mass, hatch date and number of chicks were also analysed with respect to lead concentrations. The body mass (mean ± SD g) increased significantly in the order: day 24 in 2018 (1561 ± 154 g) < day 24 in 2017 (1618 ± 156 g) < day 4 in 2018 (2183 ± 140 g) < day 4 in 2017 (2359 ± 167 g) (all p < 0.001). The lead concentrations increased significantly in the opposite order i.e. day 4 in 2017 (41.7 ± 67.1 μg/L) < day 24 in 2017 (55.4 ± 66.8 μg/L) < day 4 in 2018 (177 ± 196 μg/L) < day 24 in 2018 (258 ± 243) (all p < 0.001). From day 4 to 24, the eider females had a 1.33-fold increase in blood lead concentrations in 2017 and a 1.46-fold increase in 2018. Three of the birds (13%) sampled in 2018 had lead concentrations that exceeded concentrations of clinical poisoning (500 μg/L) and eleven (48%) had concentrations that exceeded the threshold for subclinical poisoning (200 μg/L). In 2017, none of the birds exceeded the high toxic threshold of clinical poisoning while only one (4%) exceeded the lower threshold for subclinical poisoning. Three of the birds (6%) sampled in 2018 had lead concentrations that exceeded those of clinical poisoning while 12 birds (24%) resampled in both years exceeded the threshold for subclinical poisoning. In addition, lead concentrations and body mass on day 4 affected hatch date positively in 2018 (both p < 0.03) but not in 2017. These results show that bioavailable lead in ... |
format |
Article in Journal/Newspaper |
author |
Su Shiung Lam Molly McPartland Brenley Noori Svend-Erik Garbus Syverin Lierhagen Peter Lyngs Rune Dietz Ole Roland Therkildsen Thomas Kjær Christensen Rune Skjold Tjørnløv Niels Kanstrup Anthony D. Fox Iben Hove Sørensen Céline Arzel Åse Krøkje Christian Sonne |
author_facet |
Su Shiung Lam Molly McPartland Brenley Noori Svend-Erik Garbus Syverin Lierhagen Peter Lyngs Rune Dietz Ole Roland Therkildsen Thomas Kjær Christensen Rune Skjold Tjørnløv Niels Kanstrup Anthony D. Fox Iben Hove Sørensen Céline Arzel Åse Krøkje Christian Sonne |
author_sort |
Su Shiung Lam |
title |
Lead concentrations in blood from incubating common eiders (Somateria mollissima) in the Baltic Sea |
title_short |
Lead concentrations in blood from incubating common eiders (Somateria mollissima) in the Baltic Sea |
title_full |
Lead concentrations in blood from incubating common eiders (Somateria mollissima) in the Baltic Sea |
title_fullStr |
Lead concentrations in blood from incubating common eiders (Somateria mollissima) in the Baltic Sea |
title_full_unstemmed |
Lead concentrations in blood from incubating common eiders (Somateria mollissima) in the Baltic Sea |
title_sort |
lead concentrations in blood from incubating common eiders (somateria mollissima) in the baltic sea |
publisher |
Elsevier |
publishDate |
2020 |
url |
https://doi.org/10.1016/j.envint.2020.105582 https://doaj.org/article/2a14b039435346b4a1d4aa2fb3bddc50 |
genre |
Somateria mollissima |
genre_facet |
Somateria mollissima |
op_source |
Environment International, Vol 137, Iss , Pp - (2020) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S016041201933675X https://doaj.org/toc/0160-4120 0160-4120 doi:10.1016/j.envint.2020.105582 https://doaj.org/article/2a14b039435346b4a1d4aa2fb3bddc50 |
op_doi |
https://doi.org/10.1016/j.envint.2020.105582 |
container_title |
Environment International |
container_volume |
137 |
container_start_page |
105582 |
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1766197957143560192 |