Animalia > Chordata > Mammalia > Carnivora > Otariidae > Otaria > Otaria flavescens

Otaria flavescens (South American Sealion)

Synonyms: Otaria byronia

Wikipedia Abstract

The South American sea lion (Otaria flavescens, formerly Otaria byronia), also called the southern sea lion and the Patagonian sea lion, is a sea lion found on the Chilean, Ecuador, Peruvian, Uruguayan, Argentine and Southern Brazilian coasts. It is the only member of the genus Otaria. Its scientific name was subject to controversy, with some taxonomists referring to it as Otaria flavescens and others referring to it as Otaria byronia.
View Wikipedia Record: Otaria flavescens

EDGE Analysis

Uniqueness Scale: Similiar (0) 
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
 Unique & Vulnerable (100)
ED Score: 8.53
EDGE Score: 2.25


Adult Weight [2]  457.46 lbs (207.50 kg)
Birth Weight [2]  27.56 lbs (12.50 kg)
Female Maturity [2]  4 years
Male Maturity [2]  6 years
Diet [1]  Carnivore
Forages - Marine [3]  100 %
Gestation [2]  11 months 27 days
Litter Size [2]  1
Litters / Year [2]  1
Maximum Longevity [2]  29 years
Water Biome [1]  Coastal
Weaning [2]  1 year

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Parque Nacional Laguna San Rafael National Park II 4560904 Aisén, Chile  
Tierra Del Fuego National Park II 172861 Argentina

Biodiversity Hotspots

Name Location Endemic Species Website
Chilean Winter Rainfall-Valdivian Forests Chile No

Prey / Diet

Clupea bentincki (Araucanian herring)[4]
Dosidicus gigas (jumbo squid)[4]
Macruronus magellanicus (Patagonian whiphake)[4]
Merluccius gayi (Chilean hake)[4]
Octopus vulgaris (common octopus)[5]
Sarda chiliensis (bonite du pacifique oriental)[5]
Sardinops sagax (Australian pilchard)[4]
Stromateus stellatus (Starry butterfish)[4]
Trachurus murphyi (Southern jack mackerel)[4]

Prey / Diet Overlap

Competing SpeciesCommon Prey Count
Arctocephalus philippii (Juan Fernández Fur Seal)1
Balaenoptera borealis (Sei Whale)1
Cephalorhynchus commersonii (Commerson's Dolphin)1
Cephalorhynchus eutropia (Chilean Dolphin)2
Lagenorhynchus australis (Peale's Dolphin)1
Lagenorhynchus obscurus (Dusky Dolphin)3
Lontra felina (Marine Otter)1
Phocoena phocoena (Harbor Porpoise)1
Phocoena spinipinnis (Burmeister's Porpoise)1
Puffinus griseus (Sooty Shearwater)1
Spheniscus humboldti (Humboldt Penguin)3
Sula variegata (Peruvian Booby)2


Notorynchus cepedianus (Tiger shark)[6]


Parasitized by 
Antarctophthirus microchir[5]
Contracaecum ogmorhini <Unverified Name>[7]
Corynosoma australe[7]
Corynosoma evae[7]
Diphyllobothrium pacificum[7]
Mycobacterium bovis (Bovine tuberculosis)[8]
Mycobacterium tuberculosis (Tuberculosis - MTB)[8]
Pseudoterranova decipiens[8]

Institutions (Zoos, etc.)

Institution Infraspecies / Breed 
Aalborg Zoo
African Safari
Colchester Zoo
Dudley Zoological Gardens
Edinburgh Zoo-Scottish National Zoo
Fundacao Parque Zoologico de Sao Paulo
Giza Zoological Garden
Jardim Zoologico / Lisbon Zoo
Le Pal, Parc Animalier
Münchener Tierpark Hellabrunn
Miejski Ogrod Zoologiczny w Lodz
Monde Sauvage Safari SPRL
Mulhouse Zoo
Parc Zoologique d'Amneville
Park i Ogrod Zoologiczny w Krakowie
Parque Zoologico Huachipa
Schoenbrunner Tiergarten GmbH
Societa Zoologica Di Pistoia S.R.L
Tiergarten Heidelberg
Twycross Zoo
Valley Zoo & John Janzen Nature Center
Zoo am Meer Bremerhaven GmbH
Zoo Aquarium de Madrid (GRPR)
Zoo de Pont-Scorff
Zoologicka Garden & Chateau Zlin-Lesna
Zoologicka zahrada Liberec
Zoomarine Italia S.p.A.

Range Map

South America;



Attributes / relations provided by
1Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at
2de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
3Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027
4Feeding ecology of the South American sea lion Otaria flavescens: food contents and food selectivity, Mario George-Nascimento, Rodrigo Bustamante and Ciro Oyarzun, Mar. Ecol. Prog. Ser. 21 135-143, 1985
5Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
6Reproduction, abundance and feeding habits of the broadnose sevengill shark Notorynchus cepedianus in north Patagonia, Argentina, Luis O. Lucifora, Roberto C. Menni, Alicia H. Escalante, Mar Ecol Prog Ser 289: 237–244, 2005
7Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005). Host-Parasite Database of the Natural History Museum, London
8Nunn, C. L., and S. Altizer. 2005. The Global Mammal Parasite Database: An Online Resource for Infectious Disease Records in Wild Primates. Evolutionary Anthroplogy 14:1-2.
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
Images provided by Google Image Search
Abstract provided by DBpedia licensed under a Creative Commons License
Weather provided by NOAA METAR Data Access