Causes of mortality in northern elephant seal pups on San Miguel Island, California
In February 2015, we conducted a field study of causes of mortality of northern elephant seal ( Mirounga angustirostris) pups on San Miguel Island, California. Autopsies were performed on 18 freshly dead pups. Ages of pups ranged from stillborn to 6–8 wk. Gross and histologic lesions included trauma...
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crsagepubl:10.1177/1040638720907100 2023-05-15T16:05:10+02:00 Causes of mortality in northern elephant seal pups on San Miguel Island, California Spraker, Terry R. Kuzmina, Tetiana A. DeLong, Robert L. 2020 http://dx.doi.org/10.1177/1040638720907100 http://journals.sagepub.com/doi/pdf/10.1177/1040638720907100 http://journals.sagepub.com/doi/full-xml/10.1177/1040638720907100 en eng SAGE Publications http://journals.sagepub.com/page/policies/text-and-data-mining-license Journal of Veterinary Diagnostic Investigation volume 32, issue 2, page 312-316 ISSN 1040-6387 1943-4936 General Veterinary journal-article 2020 crsagepubl https://doi.org/10.1177/1040638720907100 2022-05-26T08:14:36Z In February 2015, we conducted a field study of causes of mortality of northern elephant seal ( Mirounga angustirostris) pups on San Miguel Island, California. Autopsies were performed on 18 freshly dead pups. Ages of pups ranged from stillborn to 6–8 wk. Gross and histologic lesions included trauma (9 of 18 pups), multifocal necrotizing myopathy (8 of 18), starvation with emaciation (7 of 18), congenital anomalies (3 of 18), bacterial infections (3 of 18), and perinatal mortality (stillbirths and neonates; 2 of 18). Trauma and emaciation or starvation were the most significant contributors to death. Bacterial infections included hemolytic Escherichia coli isolated from the lungs of 2 pups with pneumonia. Additionally, non-hemolytic Streptococcus sp. and hemolytic E. coli were isolated from the liver of an emaciated pup that had mild multifocal suppurative hepatitis. Other lesions, including a previously described necrotizing myopathy, congenital anomalies, and bacterial infections, were detected concurrently in cases with starvation and/or emaciation or trauma. Article in Journal/Newspaper Elephant Seal SAGE Publications (via Crossref) San Miguel ENVELOPE(-57.467,-57.467,-63.650,-63.650) Journal of Veterinary Diagnostic Investigation 32 2 312 316 |
institution |
Open Polar |
collection |
SAGE Publications (via Crossref) |
op_collection_id |
crsagepubl |
language |
English |
topic |
General Veterinary |
spellingShingle |
General Veterinary Spraker, Terry R. Kuzmina, Tetiana A. DeLong, Robert L. Causes of mortality in northern elephant seal pups on San Miguel Island, California |
topic_facet |
General Veterinary |
description |
In February 2015, we conducted a field study of causes of mortality of northern elephant seal ( Mirounga angustirostris) pups on San Miguel Island, California. Autopsies were performed on 18 freshly dead pups. Ages of pups ranged from stillborn to 6–8 wk. Gross and histologic lesions included trauma (9 of 18 pups), multifocal necrotizing myopathy (8 of 18), starvation with emaciation (7 of 18), congenital anomalies (3 of 18), bacterial infections (3 of 18), and perinatal mortality (stillbirths and neonates; 2 of 18). Trauma and emaciation or starvation were the most significant contributors to death. Bacterial infections included hemolytic Escherichia coli isolated from the lungs of 2 pups with pneumonia. Additionally, non-hemolytic Streptococcus sp. and hemolytic E. coli were isolated from the liver of an emaciated pup that had mild multifocal suppurative hepatitis. Other lesions, including a previously described necrotizing myopathy, congenital anomalies, and bacterial infections, were detected concurrently in cases with starvation and/or emaciation or trauma. |
format |
Article in Journal/Newspaper |
author |
Spraker, Terry R. Kuzmina, Tetiana A. DeLong, Robert L. |
author_facet |
Spraker, Terry R. Kuzmina, Tetiana A. DeLong, Robert L. |
author_sort |
Spraker, Terry R. |
title |
Causes of mortality in northern elephant seal pups on San Miguel Island, California |
title_short |
Causes of mortality in northern elephant seal pups on San Miguel Island, California |
title_full |
Causes of mortality in northern elephant seal pups on San Miguel Island, California |
title_fullStr |
Causes of mortality in northern elephant seal pups on San Miguel Island, California |
title_full_unstemmed |
Causes of mortality in northern elephant seal pups on San Miguel Island, California |
title_sort |
causes of mortality in northern elephant seal pups on san miguel island, california |
publisher |
SAGE Publications |
publishDate |
2020 |
url |
http://dx.doi.org/10.1177/1040638720907100 http://journals.sagepub.com/doi/pdf/10.1177/1040638720907100 http://journals.sagepub.com/doi/full-xml/10.1177/1040638720907100 |
long_lat |
ENVELOPE(-57.467,-57.467,-63.650,-63.650) |
geographic |
San Miguel |
geographic_facet |
San Miguel |
genre |
Elephant Seal |
genre_facet |
Elephant Seal |
op_source |
Journal of Veterinary Diagnostic Investigation volume 32, issue 2, page 312-316 ISSN 1040-6387 1943-4936 |
op_rights |
http://journals.sagepub.com/page/policies/text-and-data-mining-license |
op_doi |
https://doi.org/10.1177/1040638720907100 |
container_title |
Journal of Veterinary Diagnostic Investigation |
container_volume |
32 |
container_issue |
2 |
container_start_page |
312 |
op_container_end_page |
316 |
_version_ |
1766400964650074112 |