Temporal and geographical variation of intestinal ulcers in grey seals ( Halichoerus grypus ) and environmental contaminants in baltic biota during four decades
The prevalence of intestinal ulcers and parasites was investigated in 2172 grey seals (Ha-lichoerus grypus) collected in the Baltic Sea and 49 grey seals collected outside the Baltic Sea (i.e., the Atlantic). An increase in frequency of ileocaeco-colonic ulcers was observed in the early 1980s, follo...
Published in: | Animals |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2021
|
Subjects: | |
Online Access: | https://pure.au.dk/portal/da/publications/temporal-and-geographical-variation-of-intestinal-ulcers-in-grey-seals-halichoerus-grypus-and-environmental-contaminants-in-baltic-biota-during-four-decades(ba903d0e-058d-4a8d-a3ea-7c7f5a140aff).html https://doi.org/10.3390/ani11102968 http://www.scopus.com/inward/record.url?scp=85117147911&partnerID=8YFLogxK |
id |
ftuniaarhuspubl:oai:pure.atira.dk:publications/ba903d0e-058d-4a8d-a3ea-7c7f5a140aff |
---|---|
record_format |
openpolar |
spelling |
ftuniaarhuspubl:oai:pure.atira.dk:publications/ba903d0e-058d-4a8d-a3ea-7c7f5a140aff 2023-05-15T15:56:00+02:00 Temporal and geographical variation of intestinal ulcers in grey seals ( Halichoerus grypus ) and environmental contaminants in baltic biota during four decades Britt-Marie, Bäcklin Sara, Persson Suzanne, Faxneld Frank, Rigét F. Anna, Roos M. 2021-10 https://pure.au.dk/portal/da/publications/temporal-and-geographical-variation-of-intestinal-ulcers-in-grey-seals-halichoerus-grypus-and-environmental-contaminants-in-baltic-biota-during-four-decades(ba903d0e-058d-4a8d-a3ea-7c7f5a140aff).html https://doi.org/10.3390/ani11102968 http://www.scopus.com/inward/record.url?scp=85117147911&partnerID=8YFLogxK eng eng info:eu-repo/semantics/openAccess Britt-Marie , B , Sara , P , Suzanne , F , Frank , R F & Anna , R M 2021 , ' Temporal and geographical variation of intestinal ulcers in grey seals ( Halichoerus grypus ) and environmental contaminants in baltic biota during four decades ' , Animals , vol. 11 , no. 10 , 2968 . https://doi.org/10.3390/ani11102968 Acanthocephalan parasites Baltic sea Baltic seal Environmental pollutants Guillemot Herring Intestinal lesions article 2021 ftuniaarhuspubl https://doi.org/10.3390/ani11102968 2021-11-03T23:47:34Z The prevalence of intestinal ulcers and parasites was investigated in 2172 grey seals (Ha-lichoerus grypus) collected in the Baltic Sea and 49 grey seals collected outside the Baltic Sea (i.e., the Atlantic). An increase in frequency of ileocaeco-colonic ulcers was observed in the early 1980s, followed by a decrease in the mid-1990s. At the same time, there was an increase followed by a decrease in brominated flame retardants, Perfluorooctanesulfonic acid (PFOS) and cadmium levels in herring (Clupea harengus), the most common prey item in Baltic grey seal diet, as well as in another top predator in the Baltic, the common guillemot (Uria aalge). The frequency of intestinal ulcers was significantly related to the intensity of acanthocephalan parasites, the age of the seal and the region of the Baltic Sea. Perforation of the intestinal wall was the cause of death in 26 of the investigated Baltic grey seals. In contrast, none of the investigated Atlantic grey seals had intestinal ulcers. They showed a thin colonic wall and very few acanthocephalan parasites. The high prevalence of intestinal ulcers and the high parasite intensity appear to be unique to the Baltic population of grey seals. Article in Journal/Newspaper common guillemot Uria aalge uria Aarhus University: Research Animals 11 10 2968 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Acanthocephalan parasites Baltic sea Baltic seal Environmental pollutants Guillemot Herring Intestinal lesions |
spellingShingle |
Acanthocephalan parasites Baltic sea Baltic seal Environmental pollutants Guillemot Herring Intestinal lesions Britt-Marie, Bäcklin Sara, Persson Suzanne, Faxneld Frank, Rigét F. Anna, Roos M. Temporal and geographical variation of intestinal ulcers in grey seals ( Halichoerus grypus ) and environmental contaminants in baltic biota during four decades |
topic_facet |
Acanthocephalan parasites Baltic sea Baltic seal Environmental pollutants Guillemot Herring Intestinal lesions |
description |
The prevalence of intestinal ulcers and parasites was investigated in 2172 grey seals (Ha-lichoerus grypus) collected in the Baltic Sea and 49 grey seals collected outside the Baltic Sea (i.e., the Atlantic). An increase in frequency of ileocaeco-colonic ulcers was observed in the early 1980s, followed by a decrease in the mid-1990s. At the same time, there was an increase followed by a decrease in brominated flame retardants, Perfluorooctanesulfonic acid (PFOS) and cadmium levels in herring (Clupea harengus), the most common prey item in Baltic grey seal diet, as well as in another top predator in the Baltic, the common guillemot (Uria aalge). The frequency of intestinal ulcers was significantly related to the intensity of acanthocephalan parasites, the age of the seal and the region of the Baltic Sea. Perforation of the intestinal wall was the cause of death in 26 of the investigated Baltic grey seals. In contrast, none of the investigated Atlantic grey seals had intestinal ulcers. They showed a thin colonic wall and very few acanthocephalan parasites. The high prevalence of intestinal ulcers and the high parasite intensity appear to be unique to the Baltic population of grey seals. |
format |
Article in Journal/Newspaper |
author |
Britt-Marie, Bäcklin Sara, Persson Suzanne, Faxneld Frank, Rigét F. Anna, Roos M. |
author_facet |
Britt-Marie, Bäcklin Sara, Persson Suzanne, Faxneld Frank, Rigét F. Anna, Roos M. |
author_sort |
Britt-Marie, Bäcklin |
title |
Temporal and geographical variation of intestinal ulcers in grey seals ( Halichoerus grypus ) and environmental contaminants in baltic biota during four decades |
title_short |
Temporal and geographical variation of intestinal ulcers in grey seals ( Halichoerus grypus ) and environmental contaminants in baltic biota during four decades |
title_full |
Temporal and geographical variation of intestinal ulcers in grey seals ( Halichoerus grypus ) and environmental contaminants in baltic biota during four decades |
title_fullStr |
Temporal and geographical variation of intestinal ulcers in grey seals ( Halichoerus grypus ) and environmental contaminants in baltic biota during four decades |
title_full_unstemmed |
Temporal and geographical variation of intestinal ulcers in grey seals ( Halichoerus grypus ) and environmental contaminants in baltic biota during four decades |
title_sort |
temporal and geographical variation of intestinal ulcers in grey seals ( halichoerus grypus ) and environmental contaminants in baltic biota during four decades |
publishDate |
2021 |
url |
https://pure.au.dk/portal/da/publications/temporal-and-geographical-variation-of-intestinal-ulcers-in-grey-seals-halichoerus-grypus-and-environmental-contaminants-in-baltic-biota-during-four-decades(ba903d0e-058d-4a8d-a3ea-7c7f5a140aff).html https://doi.org/10.3390/ani11102968 http://www.scopus.com/inward/record.url?scp=85117147911&partnerID=8YFLogxK |
genre |
common guillemot Uria aalge uria |
genre_facet |
common guillemot Uria aalge uria |
op_source |
Britt-Marie , B , Sara , P , Suzanne , F , Frank , R F & Anna , R M 2021 , ' Temporal and geographical variation of intestinal ulcers in grey seals ( Halichoerus grypus ) and environmental contaminants in baltic biota during four decades ' , Animals , vol. 11 , no. 10 , 2968 . https://doi.org/10.3390/ani11102968 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3390/ani11102968 |
container_title |
Animals |
container_volume |
11 |
container_issue |
10 |
container_start_page |
2968 |
_version_ |
1766391486544347136 |