NEMATODE ( OTOSTRONGYLUS CIRCUMLITUS ) INFESTATION OF NORTHERN ELEPHANT SEALS ( MIROUNGA ANGUSTIROSTRIS ) STRANDED ALONG THE CENTRAL CALIFORNIA COAST
A bstract Between 1 January 1992 and 31 December 1995, 73 of 487 (15%) juvenile northern elephant seals ( Mirounga angustirostris ) that stranded along the central California coastline and were transported to a rehabilitation center had similar clinical signs. These signs included anorexia, depressi...
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crwiley:10.1111/j.1748-7692.1997.tb00651.x 2023-12-03T10:22:07+01:00 NEMATODE ( OTOSTRONGYLUS CIRCUMLITUS ) INFESTATION OF NORTHERN ELEPHANT SEALS ( MIROUNGA ANGUSTIROSTRIS ) STRANDED ALONG THE CENTRAL CALIFORNIA COAST Gulland, F. M. D. Beckmen, K. Burek, K. Lowenstine, L. Werner, L. Spraker, T. Dailey, M. Harris, E. 1997 http://dx.doi.org/10.1111/j.1748-7692.1997.tb00651.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.1997.tb00651.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.1997.tb00651.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Marine Mammal Science volume 13, issue 3, page 446-458 ISSN 0824-0469 1748-7692 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 1997 crwiley https://doi.org/10.1111/j.1748-7692.1997.tb00651.x 2023-11-09T13:36:42Z A bstract Between 1 January 1992 and 31 December 1995, 73 of 487 (15%) juvenile northern elephant seals ( Mirounga angustirostris ) that stranded along the central California coastline and were transported to a rehabilitation center had similar clinical signs. These signs included anorexia, depression, dehydration, and epistaxis, and were accompanied by a neutrophilia. Coagulation assays on five of these animals indicated all five were in a state of disseminated intra‐vascular coagulation. Sixty‐five of the 73 animals died, and post‐mortem examination revealed heavy burdens of Otostrongylus circumlitas in the right ventricle and atrium of the hearts and pulmonary arteries, with occasional nem‐atodes in the bronchi and bronchioles. Histologic examination of 33 of these seals showed multiple pulmonary thromboses associated with a suppurative arteritis and occasionally intravascular nematodes, suggesting disseminated intravascular coagulation triggered by an arteritis may be important in causing mortality of elephant seals infested with O. circumlitus. This pathology, combined with the observation that death of juvenile northern elephant seals infected with O. circumlitus usually occurs prior to the parasite reaching reproductive maturity, suggests this is a relatively recent host‐parasite association. Article in Journal/Newspaper Elephant Seals Wiley Online Library (via Crossref) Marine Mammal Science 13 3 446 458 |
institution |
Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Gulland, F. M. D. Beckmen, K. Burek, K. Lowenstine, L. Werner, L. Spraker, T. Dailey, M. Harris, E. NEMATODE ( OTOSTRONGYLUS CIRCUMLITUS ) INFESTATION OF NORTHERN ELEPHANT SEALS ( MIROUNGA ANGUSTIROSTRIS ) STRANDED ALONG THE CENTRAL CALIFORNIA COAST |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
A bstract Between 1 January 1992 and 31 December 1995, 73 of 487 (15%) juvenile northern elephant seals ( Mirounga angustirostris ) that stranded along the central California coastline and were transported to a rehabilitation center had similar clinical signs. These signs included anorexia, depression, dehydration, and epistaxis, and were accompanied by a neutrophilia. Coagulation assays on five of these animals indicated all five were in a state of disseminated intra‐vascular coagulation. Sixty‐five of the 73 animals died, and post‐mortem examination revealed heavy burdens of Otostrongylus circumlitas in the right ventricle and atrium of the hearts and pulmonary arteries, with occasional nem‐atodes in the bronchi and bronchioles. Histologic examination of 33 of these seals showed multiple pulmonary thromboses associated with a suppurative arteritis and occasionally intravascular nematodes, suggesting disseminated intravascular coagulation triggered by an arteritis may be important in causing mortality of elephant seals infested with O. circumlitus. This pathology, combined with the observation that death of juvenile northern elephant seals infected with O. circumlitus usually occurs prior to the parasite reaching reproductive maturity, suggests this is a relatively recent host‐parasite association. |
format |
Article in Journal/Newspaper |
author |
Gulland, F. M. D. Beckmen, K. Burek, K. Lowenstine, L. Werner, L. Spraker, T. Dailey, M. Harris, E. |
author_facet |
Gulland, F. M. D. Beckmen, K. Burek, K. Lowenstine, L. Werner, L. Spraker, T. Dailey, M. Harris, E. |
author_sort |
Gulland, F. M. D. |
title |
NEMATODE ( OTOSTRONGYLUS CIRCUMLITUS ) INFESTATION OF NORTHERN ELEPHANT SEALS ( MIROUNGA ANGUSTIROSTRIS ) STRANDED ALONG THE CENTRAL CALIFORNIA COAST |
title_short |
NEMATODE ( OTOSTRONGYLUS CIRCUMLITUS ) INFESTATION OF NORTHERN ELEPHANT SEALS ( MIROUNGA ANGUSTIROSTRIS ) STRANDED ALONG THE CENTRAL CALIFORNIA COAST |
title_full |
NEMATODE ( OTOSTRONGYLUS CIRCUMLITUS ) INFESTATION OF NORTHERN ELEPHANT SEALS ( MIROUNGA ANGUSTIROSTRIS ) STRANDED ALONG THE CENTRAL CALIFORNIA COAST |
title_fullStr |
NEMATODE ( OTOSTRONGYLUS CIRCUMLITUS ) INFESTATION OF NORTHERN ELEPHANT SEALS ( MIROUNGA ANGUSTIROSTRIS ) STRANDED ALONG THE CENTRAL CALIFORNIA COAST |
title_full_unstemmed |
NEMATODE ( OTOSTRONGYLUS CIRCUMLITUS ) INFESTATION OF NORTHERN ELEPHANT SEALS ( MIROUNGA ANGUSTIROSTRIS ) STRANDED ALONG THE CENTRAL CALIFORNIA COAST |
title_sort |
nematode ( otostrongylus circumlitus ) infestation of northern elephant seals ( mirounga angustirostris ) stranded along the central california coast |
publisher |
Wiley |
publishDate |
1997 |
url |
http://dx.doi.org/10.1111/j.1748-7692.1997.tb00651.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.1997.tb00651.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.1997.tb00651.x |
genre |
Elephant Seals |
genre_facet |
Elephant Seals |
op_source |
Marine Mammal Science volume 13, issue 3, page 446-458 ISSN 0824-0469 1748-7692 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1748-7692.1997.tb00651.x |
container_title |
Marine Mammal Science |
container_volume |
13 |
container_issue |
3 |
container_start_page |
446 |
op_container_end_page |
458 |
_version_ |
1784269945112100864 |