Results 31 to 40 of about 2,459 (208)

Rare Record of Albinism in a New Zealand Fur Seal (<i>Arctocephalus forsteri</i>) Pup With Observations Through the Weaning Period. [PDF]

Ecol Evol
This article provides the first known scientific record of albinism in a New Zealand fur seal pup. We describe the individual with a particular focus on its sensory abilities. This individual's birth at a central mainland colony may permit continued study throughout his life, unlike many records of similar conditions in other species.
Hall AA, Grant RA, Suzanne Weir J.
europepmc   +2 more sources

The electrocardiogram of anaesthetized southern sea lion (Otaria flavescens) females [PDF]

Journal of Veterinary Cardiology, 2016
The goal of this study was to characterize for the first time the electrocardiogram (ECG) of the southern sea lion (SSL) Otaria flavescens.Thirteen wild SSL females were captured at Isla de Lobos (Uruguay) and anaesthetized with isoflurane. Electrocardiographic recording was performed on anaesthetized animals at ventral recumbence following ...
Dassis, Mariela, Rodriguez, Diego Horacio, Rodríguez, E., Ponce de León, A, Castro, E.   +4 more
openaire   +3 more sources

Host Traits Impact the Outcome of Metagenomic Library Preparation From Dental Calculus Samples Across Diverse Mammals. [PDF]

Mol Ecol Resour
ABSTRACT Dental calculus metagenomics has emerged as a valuable tool for studying the oral microbiomes of humans and a few select mammals. With increasing interest in wild animal microbiomes, it is important to understand how widely this material can be used across the mammalian tree of life, refine the related protocols and understand the expected ...
Moraitou M, Richards JL, Bolyos C, Saliari K, Gilissen E, Timmons Z, Kitchener AC, Pauwels OSG, Sabin R, Kokkini P, Portela Miguez R, Guschanski K.   +11 more
europepmc   +2 more sources

Ovarian Interstitial Cell Tumor in a South American Sea Lion (Otaria flavescens) [PDF]

Journal of Wildlife Diseases, 2010
A case of an ovarian tumor is reported in an 8-yr-old South American sea lion (Otaria flavescens) kept in a marine park in Malta (35.57 degrees N, 14.25 degrees E). The neoplasm was a solid mass of dense sheets and nests of round to polyhedral, irregularly shaped cells with abundant, finely vacuolated cytoplasm.
Biancani B., Lacave G, MAGI, Gian Enrico, ROSSI, Giacomo   +3 more
openaire   +3 more sources

Tuberculosis in wild South American sea lions Otaria flavescens stranded in Chubut, Argentina [PDF]

Diseases of Aquatic Organisms, 2020
Pinniped tuberculosis, commonly caused by Mycobacterium pinnipedii, is a zoonotic disease reported in free-living and captive otariid species of the southern hemisphere. Currently, data concerning pinniped tuberculosis in South America are scarce, reinforcing the need for further studies of the disease in free-ranging pinnipeds.
Fiorito, Carla Daniela, Marfil, Maria Jimena, Falzoni, Elvira María, Martínez Vivot, Marcela, Zumárraga, Martín José, Lombardo, Daniel, Barandiaran, Soledad   +6 more
openaire   +3 more sources

Diphyllobothrium sprakeri n. sp. (Cestoda: Diphyllobothriidae): a hidden broad tapeworm from sea lions off North and South America

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   +1 more source

Relationship between the female attendance pattern and pup growth rate in the South American sea lion (Carnivora)

Scientia Marina, 2021
Changes in the duration and frequency of foraging trips by female otariids may result in changes in the duration and frequency of lactation bouts and hence influence pup growth rate, unless females modify milk energy density and/or the total amount of ...
Massimiliano Drago, Luis Cardona, Valentina Franco-Trecu, Federico G. Riet-Sapriza, Enrique A. Crespo, Néstor García, Pablo Inchausti   +6 more
doaj   +1 more source

Trichinella spiralis in a South American sea lion (Otaria flavescens) from Patagonia, Argentina [PDF]

Parasitology Research, 2018
Trichinella spp. from a sylvatic cycle has been found in several animal species such as pumas (Puma concolor), armadillos (Chaetophractus villosus), rats (Rattus norvegicus), and wild boars (Sus scrofa) in Argentina. Moreover, Trichinella infection has been detected in a wide range of marine mammals around the world, including polar bears (Ursus ...
Pasqualetti, Mariana Ines, Fariña, Fernando Adrián, Krivokapich, Silvio Jesús, Gatti, G. M., Daneri, Gustavo Adolfo, Varela, Esperanza Amalia, Lucero, Sergio, Ercole, Mariano Emmanuel, Bessi, Clara, Winter, Marina, Ribicich, Miriam Mabel   +10 more
openaire   +3 more sources

Intraguild predation in sympatric seals and the effect on a declining population. [PDF]

J Anim Ecol
This study examined the prevalence, spatial extent, and temporal trends of grey seal intraguild predation (IGP). We demonstrated the utility of integrating disparate datasets to address conservation challenges and highlighted how IGP, while seemingly rare, can hold sympatric species in a predator‐pit and in small populations may contribute to declines.
Langley I, Brownlow A, Russell DJF.
europepmc   +2 more sources

Improvement in survivorship: The key for population recovery? [PDF]

, 2016
In northern Patagonia, commercial harvesting of South American sea lions, Otaria flavescens, from 1920 to 1960, decimated its population abundance. Population recovery was not immediate after hunting ceased in 1962.
Crespo, Enrique Alberto, Dans, Silvana Laura, Grandi, Maria Florencia   +2 more
core   +1 more source