Mass Mortality of Sea Lions Caused by Highly Pathogenic Avian Influenza A(H5N1) Virus [PDF]
Emerging Infectious Diseases, 2023 We report a massive mortality of 5,224 sea lions (Otaria flavescens) in Peru that seemed to be associated with highly pathogenic avian influenza A(H5N1) virus infection.
Víctor Gamarra-Toledo +13 more
doaj +2 more sources
Mass mortality event in South American sea lions (Otaria flavescens) correlated to highly pathogenic avian influenza (HPAI) H5N1 outbreak in Chile [PDF]
Veterinary Quarterly, 2023 In Chile, since January 2023, a sudden and pronounced increase in strandings and mortality has been observed among South American (SA) sea lions (Otaria flavescens), prompting significant concern.
Mauricio Ulloa +16 more
doaj +2 more sources
Pinniped electroencephalography: Methodology and findings in California sea lions (Zalophus californianus) [PDF]
Frontiers in Veterinary Science, 2023 This study was designed to identify abnormalities in the electroencephalograms (EEGs) recorded from stranded California sea lions (Zalophus californianus) with suspected domoic acid (DA) toxicosis.
D. Colette Williams +12 more
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Cooperation and opportunism in Galapagos sea lion hunting for shoaling fish [PDF]
Ecology and Evolution, 2021 For predators, cooperation can decrease the cost of hunting and potentially augment the benefits. It can also make prey accessible that a single predator could not catch. The degree of cooperation varies substantially and may range from common attraction
Tui De Roy +2 more
doaj +2 more sources
Leptospira interrogans in the Galapagos sea lions (Zalophus wollebaeki) [PDF]
BMC ZoologyBackground Leptospira are endemic and cause disease among California sea lions (Zalophus californianus), but the epidemiology of Leptospira in Galapagos sea lions (Z. wollebaeki) is almost completely unknown. Understanding the presence and circulation of
Sebastián Melo +9 more
doaj +2 more sources
Entanglement rates and haulout abundance trends of Steller (Eumetopias jubatus) and California (Zalophus californianus) sea lions on the north coast of Washington state. [PDF]
PLoS ONE, 2020 Entanglements affect marine mammal species around the globe, and for some, those impacts are great enough to cause population declines. This study aimed to document rates and causes of entanglement and trends in local haulout abundance for Steller and ...
Elizabeth Marina Allyn +1 more
doaj +2 more sources
First epidemiological survey of Toxoplasma gondii in Galapagos sea lions (Zalophus wollebaeki) [PDF]
ParasiteToxoplasma gondii is the protozoan parasite responsible for toxoplasmosis, a zoonosis that represents a health risk for mammals, including marine species. Felines are the only definitive hosts of this parasite, playing a critical role in the introduction
Mosquera Juan D. +9 more
doaj +2 more sources
Diphyllobothrium sprakeri n. sp. (Cestoda: Diphyllobothriidae): a hidden broad tapeworm from sea lions off North and South America [PDF]
Parasites & Vectors, 2021 Background The systematic of several marine diphyllobothriid tapeworms of pinnipeds has been revised in recent years. However, 20 species of Diphyllobothrium from phocids and otariids are still recognized as incertae sedis.
Jesús S. Hernández-Orts +3 more
doaj +2 more sources
Occurrence of Ocular Disorders in California Sea Lions Under Human Care: Comparing Freshwater and Saltwater Housing Conditions [PDF]
AnimalsCalifornia sea lions (Zalophus californianus) are susceptible to various ocular diseases, with some literature suggesting a heightened risk for those kept in freshwater pools as opposed to saltwater. Given the potential implications of housing conditions
Ingrid Brehm +5 more
doaj +2 more sources
PLoS ONEWhile the global population of California sea lions (Zalophus californianus) is increasing, regional trends show a decline in the Gulf of California (GoC, Mexico) and an increase in the Channel Islands (CI, U.S.) over the last 40 years.
Ana Lucía Pozas-Franco +4 more
doaj +2 more sources