Results 11 to 20 of about 3,555 (176)

Pinniped food habits in Oregon

The purpose of this investigation was to determine if pinniped feeding patterns have significant negative impacts on depressed salmonid stocks. Knowledge about prey selection by pinnipeds is key to assessing their potential impact on salmonid stocks. The
Riemer, Susan D., Brown, Robin F.
core   +6 more sources

Age group differences in blubber fatty acid profiles in northern elephant seals (Mirounga angustirostris)

Frontiers in Marine Science, 2022
Northern elephant seals (Mirounga angustirostris), like many marine mammals, rely on internal lipid stores, specifically fatty acids (FAs) stored in the blubber layer, to meet metabolic needs.
Aaron W. Kirkpatrick, Daniel E. Crocker, Shane B. Kanatous, Kerri J. Smith, Sarah S. Kienle, Stephen J. Trumble   +5 more
doaj   +1 more source

Age‐specific reproduction in female Steller sea lions in Southeast Alaska

Ecology and Evolution, 2023
Age‐, region‐, and year‐specific estimates of reproduction are needed for monitoring wildlife populations during periods of ecosystem change. Population dynamics of Steller sea lions (Eumetopias jubatus) in Southeast Alaska varied regionally (with high ...
Kelly K. Hastings, Lauri A. Jemison, Grey W. Pendleton, Devin S. Johnson, Thomas S. Gelatt   +4 more
doaj   +1 more source

A Novel Orthoreovirus Isolated From Dead Stranded Harbor Seals From Puget Sound, Washington State, United States

Frontiers in Marine Science, 2021
As part of an ongoing investigation of harbor seal (Phoca vitulina) mortalities within Puget Sound, Washington State, United States, between October 2007 and July 2008, 25 seal cases were submitted for histopathology and ancillary diagnostic testing ...
Ole Nielsen, Thaís C. S. Rodrigues, Vsevolod L. Popov, Kuttichantran Subramaniam, Thomas B. Waltzek, Dyanna M. Lambourn, Stephen Raverty   +6 more
doaj   +1 more source

Impact of the terrestrial-aquatic transition on disparity and rates of evolution in the carnivoran skull. [PDF]

, 2015
Which factors influence the distribution patterns of morphological diversity among clades? The adaptive radiation model predicts that a clade entering new ecological niche will experience high rates of evolution early in its history, followed by a ...
Smaers, JB, Goswami, A, Smaers, Jeroen B, Jeroen B Smaers, Anjali Goswami, Jones, Katrina E; id_orcid, Jones, Katrina, Goswami, Anjali, Jones, KE, Katrina E Jones   +9 more
core   +1 more source

Population trends of the Kuril harbour seal Phoca vitulina stejnegeri from 1974 to 2010 in southeastern Hokkaido, Japan

Endangered Species Research, 2014
The Kuril harbour seal Phoca vitulina stejnegeri is an endangered species which inhabits southeastern Hokkaido, Japan. Its population declined precipitously from between 1500 and 4800 individuals in the 1940s to a few hundred individuals in the early ...
Y Kobayashi, T Kariya, J Chishima, K Fujii, K Wada, S Baba, T Itoo, T Nakaoka, M Kawashima, S Saito, N Aoki, Si Hayama, Y Osa, H Osada, A Niizuma, M Suzuki, Y Uekane, K Hayashi, M Kobayashi, N Ohtaishi, Y Sakurai   +20 more
doaj   +1 more source

A Comparison of Parapoxviruses in North American Pinnipeds

Frontiers in Veterinary Science, 2021
Parapoxviruses cause nodular lesions on the skin and mucosal membranes of pinnipeds and infections by these viruses have been documented worldwide. Seal parapoxvirus is currently classified as a tentative species of the Parapoxvirus genus. Tissue or swab
Helena Costa, Helena Costa, Jörn Klein, Eva M. Breines, Hendrik H. Nollens, Keith Matassa, Mendy Garron, Padraig J. Duignan, Todd Schmitt, Tracey Goldstein, Morten Tryland   +10 more
doaj   +1 more source

Gut microbiota of endangered Australian sea lion pups is unchanged by topical ivermectin treatment for endemic hookworm infection

Frontiers in Microbiology, 2022
The gut microbiota is essential for the development and maintenance of the hosts’ immune system. Disturbances to the gut microbiota in early life stages can result in long-lasting impacts on host health.
Mariel Fulham, Michelle Power, Rachael Gray   +2 more
doaj   +1 more source

Walruses recovering after 60+ years of protection in Svalbard, Norway [PDF]

Polar Research, 2014
Walruses were brought to the brink of extinction in Svalbard (Norway) during 350 years of unregulated harvesting. They became protected in 1952, when few remained.
Kit M. Kovacs, Jon Aars, Christian Lydersen   +2 more
doaj   +1 more source

Exposure of wild Caspian seals (Pusa caspica) to parasites, bacterial and viral pathogens, evaluated via molecular and serological assays

Frontiers in Marine Science, 2023
Disease surveillance of marine mammal populations is essential to understand the causes of strandings, identify potential threats to animal health, and to support development of conservation strategies.
Aidyn Kydyrmanov, Kobey Karamendin, Yermukhammet Kassymbekov, Marat Kumar, Shynar Mazkirat, Symbat Suleimenova, Mirgaliy Baimukanov, Ian M. Carr, Simon J. Goodman   +8 more
doaj   +1 more source