Results 1 to 10 of about 157,314 (299)

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, Pablo I. Plaza, Roberto Gutiérrez, Giancarlo Inga-Diaz, Patricia Saravia-Guevara, Oliver Pereyra-Meza, Elver Coronado-Flores, Antonio Calderón-Cerrón, Gonzalo Quiroz-Jiménez, Paola Martinez, Deyvis Huamán-Mendoza, José C. Nieto-Navarrete, Sandra Ventura, Sergio A. Lambertucci   +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, Antonio Fernández, Naomi Ariyama, Ana Colom-Rivero, Carlos Rivera, Paula Nuñez, Paola Sanhueza, Magdalena Johow, Hugo Araya, Juan Carlos Torres, Paola Gomez, Gabriela Muñoz, Belén Agüero, Raúl Alegría, Rafael Medina, Victor Neira, Eva Sierra   +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, Martin Haulena, Sophie Dennison, Lynnette Waugh, Tracey Goldstein, Felicia Nutter, Bill Van Bonn, Vanessa Hoard, Kenneth D. Laxer, Paul S. Buckmaster, Frances M. D. Gulland, Frances M. D. Gulland, Barry Tharp   +12 more
doaj   +2 more sources

Leptospira interrogans in the Galapagos sea lions (Zalophus wollebaeki) [PDF]

BMC Zoology
Background 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, Andrea Guallasamín-Miño, Pamela Mosquera, Mateo Carvajal, Mercy F. Falconí, Juan D. Mosquera, Diego Páez-Rosas, Eduardo Díaz, Talima Pearson, Verónica Barragán   +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, Jonathan Joseph Scordino   +1 more
doaj   +2 more sources

First epidemiological survey of Toxoplasma gondii in Galapagos sea lions (Zalophus wollebaeki) [PDF]

Parasite
Toxoplasma 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., Diaz Eduardo, de los Ángeles Bayas Rosa, Páez-Rosas Diego, Grijalva-Rosero Colón Jaime, Zapata Sonia, Escotte-Binet Sandie, Di Brasi Quentin, Villena Isabelle, Poulle Marie-Lazarine   +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, Tetiana A. Kuzmina, Luis A. Gomez-Puerta, Roman Kuchta   +3 more
doaj   +2 more sources

Occurrence of Ocular Disorders in California Sea Lions Under Human Care: Comparing Freshwater and Saltwater Housing Conditions [PDF]

Animals
California 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, Silas Herzner, Katrin Baumgartner, Jörg Beckmann, Ralph Simon, Lorenzo von Fersen   +5 more
doaj   +2 more sources

Causes of adult mortality in two populations of New Zealand sea lions (Phocarctos hookeri) [PDF]

Veterinary and Animal Science, 2019
The New Zealand sea lion is an endangered species endemic to New Zealand. While causes of death are well described for pups of this species, mortality in adults is poorly characterised. This study investigated causes of death in 136 New Zealand sea lions
B. Lenting, B. Gartrell, A. Kokosinska, P.J. Duignan, S. Michael, S. Hunter, W.D. Roe   +6 more
doaj   +2 more sources

Velocity Field Measurements of the California Sea Lion Propulsive Stroke Using Bubble PIV

Fluids, 2021
California sea lions are among the most agile of swimming mammals. Most marine mammals swim with their hind appendages—flippers or flukes, depending on the species—whereas sea lions use their foreflippers for propulsion and maneuvering.
Gino Perrotta, Frank E. Fish, Danielle S. Adams, Ariel M. Leahy, Abigal M. Downs, Megan C. Leftwich   +5 more
doaj   +1 more source