Results 21 to 30 of about 2,459 (208)

Fishing gear ingestion by marine megafauna: Another threat to the South American sea lion Otaria flavescens

Global Ecology and Conservation
The South American sea lion, Otaria flavescens, is endemic to the Atlantic and Pacific coasts of South America, utilizing the southern Brazilian coast for resting and foraging.
Caio Ribeiro Soares-Oliveira, Danielle da Silveira Monteiro, Milena Albrecht, Silvina Botta   +3 more
doaj   +2 more sources

Large-Scale Coastal Marine Wildlife Monitoring with Aerial Imagery [PDF]

Journal of Imaging
Monitoring coastal marine wildlife is crucial for biodiversity conservation, environmental management, and sustainable utilization of tourism-related natural assets.
Octavio Ascagorta, María Débora Pollicelli, Francisco Ramiro Iaconis, Elena Eder, Mathías Vázquez-Sano, Claudio Delrieux   +5 more
doaj   +2 more sources

Mycobacterium pinnipedii in a captive Southern sea lion (Otaria flavescens): a case report [PDF]

Veterinární Medicína, 2011
Mycobacterium pinnipedii causes tuberculosis in free-living and captive pinniped species throughout the world. We report on the isolation of this M. tuberculosis complex (MTC) member from an imported male Southern sea lion (Otaria flavescens) in a zoo in
P. Kriz, P. Kralik, M. Slany, I. Slana, J. Svobodova, I. Parmova, V. Barnet, V. Jurek, I. Pavlik   +8 more
doaj   +2 more sources

Antarctophthirus microchir infestation in synanthropic South American sea lion (Otaria flavescens) males diagnosed by a novel non-invasive method. [PDF]

Parasitol Res, 2019
Ebmer D, Navarrete MJ, Muñoz P, Flores LM, Gärtner U, Taubert A, Hermosilla C.   +6 more
europepmc   +3 more sources

Solapamiento trófico entre el lobo marino de un pelo Otaria flavescens y la pesquería de arrastre demersal del golfo San Matías, Patagonia, Argentina Trophic overlap between the South American sea lion Otaria flavescens and the demersal trawl fishery in San Matías Gulf, Patagonia, Argentina

Latin American Journal of Aquatic Research, 2011
A nivel internacional, paralelo a la declinación y al colapso de pesquerías de gran escala, surgió un interés creciente por el estudio de las interacciones entre mamíferos marinos y pesquerías. El golfo San Matías (Patagonia, Argentina) es considerado un
María Alejandra Romero, Silvana Dans, Raúl González, Guillermo Svendsen, Néstor García, Enrique Crespo   +5 more
doaj   +1 more source

Longer and less overlapping food webs in anthropogenically disturbed marine ecosystems: confirmations from the past [PDF]

, 2014
The human exploitation of marine resources is characterised by the preferential removal of the largest species. Although this is expected to modify the structure of food webs, we have a relatively poor understanding of the potential consequences of such ...
A García-Rubies, A Lorrain, A Schiavini, A Schiavini, A Schiavini, AC Milessi, AC Parnell, AJ Jaureguizar, AL Jackson, AL Rivas, Alex Aguilar, AM Tivoli, B Obelic, B Page, B Worm, BH Becker, BS Halpern, C Herling, CA Layman, CM Favier Dubois, CP Chamberlain, D Jones, D Pauly, Damián G. Vales, DL Kramer, DM Post, DM Post, E Balech, E Moreno, E Sala, EA Crespo, EAA Versteegh, EG Bligh, Enrique A. Crespo, F Saporiti, FA Zangrando, Fabiana Saporiti, FG Riet-Sapriza, GV Hilderbrand, HK Lotze, J Barrett, J Christensen, J Mangerud, JA Devine, JB Belardi, JB Jackson, JF Caddy, JI Túnez, JI Túnez, KA Hobson, KH Soto, L McClenachan, L Orquera, L Orquera, L Reyes, L Silva, LA Orquera, Laura Silva, Lisette Zenteno, LN Padovani, Luis Cardona, M Beretta, M Drago, M Drago, M Drago, M Koen Alonso, M Koen-Alonso, M Serrán, MJ DeNiro, MJ DeNiro, MJ Schoeninger, MJ Vander Zanden, MM Casey, MM Rivadeneira, N Hanson, P Cury, R Burton, RA Myers, RL Lewison, S Bearhop, S Jennings, S Libralato, SC Wainright, SD Emslie, SD Newsome, SD Newsome, SE Bunn, SL Dans, SN Schmidt, Stuart Bearhop, TH O'Donnell, V Christensen, Yan Ropert-Coudert   +92 more
core   +20 more sources

Spontaneous Yawning and its Potential Functions in South American Sea Lions (Otaria flavescens). [PDF]

Sci Rep, 2019
AbstractSpontaneous yawning is a widespread behaviour in vertebrates. However, data on marine mammals are scarce. In this study, we tested some hypotheses on the functions of yawning in a captive group of South American sea lions (Otaria flavescens). According to the Dimorphism Hypothesis, species showing low levels of sexual dimorphism in canine size ...
Palagi E, Guillén-Salazar F, Llamazares-Martín C.   +2 more
europepmc   +5 more sources

Patrones reproductivos del lobo marino común, Otaria flavescens (Shaw 1800), en el centro-sur de Chile [PDF]

Revista Chilena de Historia Natural, 2005
El desfase latitudinal de los eventos reproductivos en Otaria flavescens sugiere la existencia de una adaptación fisiológica y conductual a condiciones ambientales locales. La identificación de cambios en los patrones conductuales intraespecíficos frente a modificaciones ambientales sugieren una relación entre estos.
Hector Pavés, Roberto Schlatter, CRISTIAN I ESPINOZA   +2 more
openalex   +3 more sources

Recovery of the South American sea lion (Otaria flavescens) population in northern Patagonia

Canadian Journal of Fisheries and Aquatic Sciences, 2004
The size of and trend in the South American sea lion (Otaria flavescens) population located in northern Patagonia were estimated and changes in the distribution, size, and structure of individual sites were analyzed during the period 1983–2002. Total counts were made during the reproductive season.
Silvana L. Dans, Enrique A. Crespo, Susana N. Pedraza, Mariano Koen Alonso   +3 more
openalex   +3 more sources

Acción de xilacina como agente inmovilizante en lobos marinos (Otaria flavescens, Arctocephalus philipii) .

Avances en Ciencias Veterinarias, 2010
Juan C. Cárdenas, Pedro E. Cattan
openalex   +3 more sources