How are trace elements mobilized during the post-weaning fast in northern elephant seals?
peer reviewed Northern elephant seal (Mirounga angustirostris) pups undergo a substantial intertissue reorganization of protein, minerals, and other cellular components during their postweaning development, which might entail the mobilization of associated contaminants. The authors investigated the...
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Online Access: | https://orbi.uliege.be/handle/2268/129203 https://orbi.uliege.be/bitstream/2268/129203/1/2012%20ETC%20Habran.pdf https://doi.org/10.1002/etc.1960 |
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ftorbi:oai:orbi.ulg.ac.be:2268/129203 2023-05-15T16:05:14+02:00 How are trace elements mobilized during the post-weaning fast in northern elephant seals? Habran, Sarah Crocker, D Debier, C Das, Krishna 2012 https://orbi.uliege.be/handle/2268/129203 https://orbi.uliege.be/bitstream/2268/129203/1/2012%20ETC%20Habran.pdf https://doi.org/10.1002/etc.1960 en eng SETAC Press urn:issn:0730-7268 urn:issn:1552-8618 https://orbi.uliege.be/handle/2268/129203 info:hdl:2268/129203 https://orbi.uliege.be/bitstream/2268/129203/1/2012%20ETC%20Habran.pdf doi:10.1002/etc.1960 scopus-id:2-s2.0-84866407591 info:pmid:22833380 open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess Environmental Toxicology and Chemistry, 31 (10), 2354-2365 (2012) trace element post-weaning fast blood hair Life sciences Environmental sciences & ecology Sciences du vivant Sciences de l’environnement & écologie journal article http://purl.org/coar/resource_type/c_6501 info:eu-repo/semantics/article peer reviewed 2012 ftorbi https://doi.org/10.1002/etc.1960 2022-12-12T21:51:46Z peer reviewed Northern elephant seal (Mirounga angustirostris) pups undergo a substantial intertissue reorganization of protein, minerals, and other cellular components during their postweaning development, which might entail the mobilization of associated contaminants. The authors investigated the changes in concentrations of 11 elements (Ca, Cd, Cr, Cu, Fe, Hg, Ni, Pb, Se, V, and Zn) in a longitudinal study on 22 northern elephant seal pups during the postweaning fast. Slight changes in most element concentrations were observed in blood throughout the fast. Circulating levels of Hg, Se, and Cu appeared less altered during the postweaning fast than during suckling (previously measured). Despite the considerable fat utilization, element concentrations in blubber remained stable throughout the fast (except Fe), which suggests that elements are mobilized from blubber as efficiently as lipids. As indicators of the placental transfer, concentrations in lanugo hair revealed the existence of maternal transfer and accumulation of all assayed trace elements during fetal development. In addition, the new pelage, rapidly produced after weaning, appeared to be an important elimination route for toxic metals like Hg, Cd, and Pb. The high mineral content detected in pup hair suggests that this species would be more exposed to trace elements than other phocids (except Cd and Pb). This statement needs nevertheless further monitoring and toxicological studies to determine better the exposition to trace elements and its potential impact on the northern elephant seal’s health. Article in Journal/Newspaper Elephant Seal Elephant Seals University of Liège: ORBi (Open Repository and Bibliography) Environmental Toxicology and Chemistry 31 10 2354 2365 |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
trace element post-weaning fast blood hair Life sciences Environmental sciences & ecology Sciences du vivant Sciences de l’environnement & écologie |
spellingShingle |
trace element post-weaning fast blood hair Life sciences Environmental sciences & ecology Sciences du vivant Sciences de l’environnement & écologie Habran, Sarah Crocker, D Debier, C Das, Krishna How are trace elements mobilized during the post-weaning fast in northern elephant seals? |
topic_facet |
trace element post-weaning fast blood hair Life sciences Environmental sciences & ecology Sciences du vivant Sciences de l’environnement & écologie |
description |
peer reviewed Northern elephant seal (Mirounga angustirostris) pups undergo a substantial intertissue reorganization of protein, minerals, and other cellular components during their postweaning development, which might entail the mobilization of associated contaminants. The authors investigated the changes in concentrations of 11 elements (Ca, Cd, Cr, Cu, Fe, Hg, Ni, Pb, Se, V, and Zn) in a longitudinal study on 22 northern elephant seal pups during the postweaning fast. Slight changes in most element concentrations were observed in blood throughout the fast. Circulating levels of Hg, Se, and Cu appeared less altered during the postweaning fast than during suckling (previously measured). Despite the considerable fat utilization, element concentrations in blubber remained stable throughout the fast (except Fe), which suggests that elements are mobilized from blubber as efficiently as lipids. As indicators of the placental transfer, concentrations in lanugo hair revealed the existence of maternal transfer and accumulation of all assayed trace elements during fetal development. In addition, the new pelage, rapidly produced after weaning, appeared to be an important elimination route for toxic metals like Hg, Cd, and Pb. The high mineral content detected in pup hair suggests that this species would be more exposed to trace elements than other phocids (except Cd and Pb). This statement needs nevertheless further monitoring and toxicological studies to determine better the exposition to trace elements and its potential impact on the northern elephant seal’s health. |
format |
Article in Journal/Newspaper |
author |
Habran, Sarah Crocker, D Debier, C Das, Krishna |
author_facet |
Habran, Sarah Crocker, D Debier, C Das, Krishna |
author_sort |
Habran, Sarah |
title |
How are trace elements mobilized during the post-weaning fast in northern elephant seals? |
title_short |
How are trace elements mobilized during the post-weaning fast in northern elephant seals? |
title_full |
How are trace elements mobilized during the post-weaning fast in northern elephant seals? |
title_fullStr |
How are trace elements mobilized during the post-weaning fast in northern elephant seals? |
title_full_unstemmed |
How are trace elements mobilized during the post-weaning fast in northern elephant seals? |
title_sort |
how are trace elements mobilized during the post-weaning fast in northern elephant seals? |
publisher |
SETAC Press |
publishDate |
2012 |
url |
https://orbi.uliege.be/handle/2268/129203 https://orbi.uliege.be/bitstream/2268/129203/1/2012%20ETC%20Habran.pdf https://doi.org/10.1002/etc.1960 |
genre |
Elephant Seal Elephant Seals |
genre_facet |
Elephant Seal Elephant Seals |
op_source |
Environmental Toxicology and Chemistry, 31 (10), 2354-2365 (2012) |
op_relation |
urn:issn:0730-7268 urn:issn:1552-8618 https://orbi.uliege.be/handle/2268/129203 info:hdl:2268/129203 https://orbi.uliege.be/bitstream/2268/129203/1/2012%20ETC%20Habran.pdf doi:10.1002/etc.1960 scopus-id:2-s2.0-84866407591 info:pmid:22833380 |
op_rights |
open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/etc.1960 |
container_title |
Environmental Toxicology and Chemistry |
container_volume |
31 |
container_issue |
10 |
container_start_page |
2354 |
op_container_end_page |
2365 |
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1766401140441743360 |