Lead isotopic signatures in blood from incubating common eiders (Somateria mollissima) in the central Baltic Sea
The Christiansø colony of common eiders (Somateria mollissima) in the central Baltic Sea were exposed to high levels of Pb during the 2018 breeding season that were not present in 2017. Due to these high Pb blood levels, the present study investigated possible Pb sources and Pb dynamics within this...
Published in: | Environment International |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Elsevier
2020
|
Subjects: | |
Online Access: | https://doi.org/10.1016/j.envint.2020.105874 https://doaj.org/article/5f028960751040dc90cfc98f222429ec |
id |
ftdoajarticles:oai:doaj.org/article:5f028960751040dc90cfc98f222429ec |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:5f028960751040dc90cfc98f222429ec 2023-05-15T18:20:25+02:00 Lead isotopic signatures in blood from incubating common eiders (Somateria mollissima) in the central Baltic Sea Molly McPartland Svend-Erik Garbus Syverin Lierhagen Christian Sonne Åse Krøkje 2020-09-01T00:00:00Z https://doi.org/10.1016/j.envint.2020.105874 https://doaj.org/article/5f028960751040dc90cfc98f222429ec EN eng Elsevier http://www.sciencedirect.com/science/article/pii/S0160412020318298 https://doaj.org/toc/0160-4120 0160-4120 doi:10.1016/j.envint.2020.105874 https://doaj.org/article/5f028960751040dc90cfc98f222429ec Environment International, Vol 142, Iss , Pp 105874- (2020) Avian Baltic Sea Lead poisoning Isotope HR-ICP-MS Biomonitoring Environmental sciences GE1-350 article 2020 ftdoajarticles https://doi.org/10.1016/j.envint.2020.105874 2022-12-31T14:20:23Z The Christiansø colony of common eiders (Somateria mollissima) in the central Baltic Sea were exposed to high levels of Pb during the 2018 breeding season that were not present in 2017. Due to these high Pb blood levels, the present study investigated possible Pb sources and Pb dynamics within this vulnerable colony. We analyzed body mass and lead isotopic ratios (Pb-IRs) in blood taken from the same incubating eiders at the early (day 4) and late (day 24) stages of incubation during the 2018 breeding season (n = 23). Pb-IRs 208/207, 208/206, 206/207, and 207/206 were analyzed using high resolution inductively coupled mass spectrometry. We found largely similar Pb-IRs from the different stages of incubation indicating a predominantly constant endogenous source of Pb exposure. We suggest the increasing Pb levels come from pre-nesting and nesting foraging and from medullary bone release. The similar Pb-IRs also indicate continued metabolization of the medullary bone to meet the nutritional and energy demands of incubation. Comparisons to Pb-IR reports from the Baltic Sea showed multiple sources of pollution distinguished by a difference between Pb-IRs in individuals with Pb blood concentrations >500 μg/kg ww and <500 μg/kg ww. The most highly contaminated individuals in the present study had Pb-IRs similar to those of Pb ammunition indicating shot pellet uptake. This study further emphasizes the need for continued biomonitoring of the Christiansø colony, including fecal sampling and environmental field sampling to identify the origin and extent of dietary Pb exposure on Christiansø. As a representative unit of the Baltic Flyway population; the Christiansø colony provides an important opportunity for continued investigation into Pb contamination, population dynamics, and declines. Article in Journal/Newspaper Somateria mollissima Directory of Open Access Journals: DOAJ Articles Environment International 142 105874 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Avian Baltic Sea Lead poisoning Isotope HR-ICP-MS Biomonitoring Environmental sciences GE1-350 |
spellingShingle |
Avian Baltic Sea Lead poisoning Isotope HR-ICP-MS Biomonitoring Environmental sciences GE1-350 Molly McPartland Svend-Erik Garbus Syverin Lierhagen Christian Sonne Åse Krøkje Lead isotopic signatures in blood from incubating common eiders (Somateria mollissima) in the central Baltic Sea |
topic_facet |
Avian Baltic Sea Lead poisoning Isotope HR-ICP-MS Biomonitoring Environmental sciences GE1-350 |
description |
The Christiansø colony of common eiders (Somateria mollissima) in the central Baltic Sea were exposed to high levels of Pb during the 2018 breeding season that were not present in 2017. Due to these high Pb blood levels, the present study investigated possible Pb sources and Pb dynamics within this vulnerable colony. We analyzed body mass and lead isotopic ratios (Pb-IRs) in blood taken from the same incubating eiders at the early (day 4) and late (day 24) stages of incubation during the 2018 breeding season (n = 23). Pb-IRs 208/207, 208/206, 206/207, and 207/206 were analyzed using high resolution inductively coupled mass spectrometry. We found largely similar Pb-IRs from the different stages of incubation indicating a predominantly constant endogenous source of Pb exposure. We suggest the increasing Pb levels come from pre-nesting and nesting foraging and from medullary bone release. The similar Pb-IRs also indicate continued metabolization of the medullary bone to meet the nutritional and energy demands of incubation. Comparisons to Pb-IR reports from the Baltic Sea showed multiple sources of pollution distinguished by a difference between Pb-IRs in individuals with Pb blood concentrations >500 μg/kg ww and <500 μg/kg ww. The most highly contaminated individuals in the present study had Pb-IRs similar to those of Pb ammunition indicating shot pellet uptake. This study further emphasizes the need for continued biomonitoring of the Christiansø colony, including fecal sampling and environmental field sampling to identify the origin and extent of dietary Pb exposure on Christiansø. As a representative unit of the Baltic Flyway population; the Christiansø colony provides an important opportunity for continued investigation into Pb contamination, population dynamics, and declines. |
format |
Article in Journal/Newspaper |
author |
Molly McPartland Svend-Erik Garbus Syverin Lierhagen Christian Sonne Åse Krøkje |
author_facet |
Molly McPartland Svend-Erik Garbus Syverin Lierhagen Christian Sonne Åse Krøkje |
author_sort |
Molly McPartland |
title |
Lead isotopic signatures in blood from incubating common eiders (Somateria mollissima) in the central Baltic Sea |
title_short |
Lead isotopic signatures in blood from incubating common eiders (Somateria mollissima) in the central Baltic Sea |
title_full |
Lead isotopic signatures in blood from incubating common eiders (Somateria mollissima) in the central Baltic Sea |
title_fullStr |
Lead isotopic signatures in blood from incubating common eiders (Somateria mollissima) in the central Baltic Sea |
title_full_unstemmed |
Lead isotopic signatures in blood from incubating common eiders (Somateria mollissima) in the central Baltic Sea |
title_sort |
lead isotopic signatures in blood from incubating common eiders (somateria mollissima) in the central baltic sea |
publisher |
Elsevier |
publishDate |
2020 |
url |
https://doi.org/10.1016/j.envint.2020.105874 https://doaj.org/article/5f028960751040dc90cfc98f222429ec |
genre |
Somateria mollissima |
genre_facet |
Somateria mollissima |
op_source |
Environment International, Vol 142, Iss , Pp 105874- (2020) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S0160412020318298 https://doaj.org/toc/0160-4120 0160-4120 doi:10.1016/j.envint.2020.105874 https://doaj.org/article/5f028960751040dc90cfc98f222429ec |
op_doi |
https://doi.org/10.1016/j.envint.2020.105874 |
container_title |
Environment International |
container_volume |
142 |
container_start_page |
105874 |
_version_ |
1766197949773119488 |