Steller Sea Lion or Northern Sea Lion (Eumetopias jubatus) Genus Neophoca. The playful Australian Sea Lion is a fascinating creature and one of the rarest in the world. Sea lions often rest aboard fishing boats, sometimes causing the boats to sink. These issues may be an important factor as to why the Australian sea lion population is currently at risk. California sea lions are playful, intelligent, and very vocal (sounding like barking dogs). The gestation period for Australian sea lions is a whopping 17.6 months. Sea lions and fur seals can rotate their hind flippers toward the ground so they're able to walk on all four appendages. Photo by Cody Pope [CC BY-SA 2.5] The Australian sea lion is patchily distributed along the coastlines of the states of Western Australia and South Australia.A total of 81 island and mainland breeding sites have been recorded. researchrepository.murdoch.edu.au. Species. On their back males are dark brown or grey and this can appear black if they are wet. Caniformia: pictures (610) Caniformia: specimens (631) Caniformia: sounds (4) Family Otariidae fur seals and sea lions. They are also much more vocal, prone to loud barking. Before a female goes to sea to feed, usually ten days to two weeks after parturition, she hides her pup in a niche or crevice or beneath piled boulders where a bull ⦠Males are 2.0â2.5 metres in length, females 1.5â2.0 metres. The Australian sea lion is endemic to Australian waters and ranges from the Houtman Abrolhos on the west coast of Western Australia to the Pages Islands in South Australia (Goldsworthy et al. Breeding colonies are located only on remote areas of the coastline or islands and only 66 breeding colonies are known The pinniped species called "sea lion" are: Steller sea lion or northern sea lion (Eumetopias jubatus) Australian sea lion (Neophoca cinerea) Size. Found only in Australia, the Australian Sea Lion is one of the most endangered pinnipeds in the world, with an estimated 10,000-12,000 between The Page Islands in South Australia and Houtman Abrolhos off the Western Australia coast. "Human impacts on Australian sea lions, Neophoca cinerea, hauled out on Carnac Island (Perth, Western Australia): implications for wildlife and tourism management". The Australian sea lion (Neophoca cinerea) is the only endemic species of pinniped found in Australian waters. Phylogeny. The Australian sea lion population decreased due to harvests in the 17th and 18th centuries and traditional subsistence hunting by aborigines (Goldsworhty & Gales 2008). It was listed under the Commonwealth Environment Protection and Biodiversity Conservation Act as Vulnerable in February 2005, and the International Union for the Conservation of Nature has listed it as Endangered. The Australian sea lion is at risk of extinction because its population is small and genetically fragmented. Seals 32 species belonging to 17 genera in 2 families. 22. the Houtman Arbrolhos Islands in Western Australia along the southern Australian coast to The Pages Islands in South Australia. 2. Species. California Sea Lion (Zalophus californianus) They were listed as ârareâ in the 1994 IUCN Red List of Threatened Animals. Below are the scientific names for the six subspecies of sea lions. Photo Gallery. The Steller Sea Lion is the largest of them all and lives in the Northern Pacific, especially around Alaska. South American Sea Lion or Southern Sea Lion (Otaria flavescens, formerly Otaria byronia) Genus Phocarctos. Otariids make use of their fore flippers when propelling themselves through water.Well-known sea lion species include the California sea lion and the steller (or northern ) sea lion . Female silvery grey above and yellow cream below. - australian sea lion stock pictures, royalty-free photos & images BBC News (15 April 2007). Although benthic prey are less influenced by seasonal fluctuations and oceanographic perturbations than epipelagic prey, demersal fishery trawls may impact juvenile survival by disrupting habitat and removing larger size classes of prey. Fishermen try to prevent them from coming aboard by putting up barbwire as a barrier, but this causes severe injuries to the sea lions. Identification. "The Australian sea lion is an endangered species, in part due to historical sealing in the 19th century, where whole colonies were wiped out.The numbers of Australian sea lions ⦠Females typically give birth to a single offspring and fast in the breeding colony for up to 14 days while suckling the young [38] during the perinatal attendance period (PAP). After giving birth, females will typically mate again within seven to 10 days. Australian Sea Lion (Neophoca cinerea) Genus Otaria. Sea lions are also fierce fighters, just like lions. South American Sea Lion or Southern Sea Lion (Otaria flavescens, formerly Otaria byronia) Genus Phocarctos. The Australia sea lion has a stocky body with short flippers. The Australian sea lion is the worldâs rarest pinniped species. Both sexes have brown fur, but the young are darker. Apart ⦠Found only in Australia and one of the most endangered pinnipeds in the world, there are estimated to be 10,000-12,000 Australian sea lions between The Pages Islands in South Australia and Houtman Abrolhos off the Western Australian coast. The species mostly inhabits islands... Animal characteristics and classification: Animals can be classified based on their characteristics. Conception: 90%, Data Collection: 90%, Analysis: 100%, Writing: 95% Appendix I: Maternal strategies of the Australian sea lion Neophoca cinerea at Dangerous Reef, South Australia. Breeding behaviour []. Current population estimates of 10-12,000 animals make this one of the rarest sea lions in the world (Gales et al. They rarely venture into deep waters, therefore they feed on crustaceans and cephalopods close to the shore. It is an 18-month cycle and is ⦠Here in Australia, sea lions are very rare. The Australian sea lion is one of seven extant sea lion species worldwide (Boness, 2009) and is Australiaâs only endemic pinniped species and one of the rarest otariids (Ling, 2002). Classification. Breeding behaviour. The breeding cycle of the Australian sea lion is unusual within the pinniped family. Australian sea lion pups have come to fear all adults, except their mothers, and flee at their approach. The pinniped species called "sea lion" are: Steller sea lion or northern sea lion (Eumetopias jubatus) Australian sea lion (Neophoca cinerea) Australian sea lions are unique marine mammals that spend long periods at sea, usually alternating between diving to find food and resting on the surface of the water. Thank you very much! Australian sea lion populations were decimated in the early 1900s through hunting for their fur and oil. Hookworm and tuberculosis already threaten their small and diminishing population, which has fallen by more than 60 percent over four ⦠Conservation of Australian Sea Lions. Their entire population lives along the southern and western coastlines of the Great Southern Reef with about 85% living in South Australia and the other 15% in Western Australia, and they are the only endemic pinniped in all of Australia. Male Australian Sea Lions are dark brown with a light yellow mane around their heads. Today, Australian sea lions are extinct from Bass Strait. The species once occurred in Bass Strait and around Tasmania but ⦠Phylogeny []. Zalophus comes to us from Greek and translates to âintensive crest.â Animal Behaviour . Together with walruses, seals and sea lions are classified as pinnipeds (suborder Pinnipedia). Australian sea lion numbers are estimated to be around 12,500 individuals â this small population makes the Australian sea lion one of the rarest pinniped in the world. Scientific name: Phocarctos hookeri Hookerâs sea lions, also known as New Zealand sea lions, are one of only five species of sea lions in the world, the others being the Australian sea lion, the South American sea lion, the California sea lion and Steller sea lion. With an estimated adult population of 800, Seal Bay is the third largest of the 76 known Australian sea lion breeding colonies, spread along Australiaâs southern and south-western coastlines, mostly in South Australia. The classification of organisms has evolved since Aristotle grouped life forms into plants and animals over 2,300 years ago. Male Australian sea lions have been selected over females for this role because they roam more widely. Seals spent a larger portion of their lives in the water, coming ashore primarily for mating and breeding. Sea lions are also fierce fighters, just like lions. Sea lions form around one-third of species in the Otariidae family of ⦠In 2015, there were an estimated 12,290â13,090 individuals remaining in the wild and of these only 16% are found in Western Australia (Goldsworthy, 2015 ). New Zealand and Australian fur seals occur within or very near the present range of Australian sea lions. The Australian sea lion is a pinniped, most closely related to other species of sea lions and fur seals in the family Otariidae.. Australian sea lions hauled out on sandy beach. Join Our Campaign to Protect One of South Australiaâs Most Iconic Native Animals Populations are yet to recover. Australian Sea Lion (Neophoca cinerea) Genus Otaria. Pinnipeds (seals, fur seals, sea lions and walruses) are highly vocal yet the Australian sea lion (Neophoca cinerea) is the only eared seal known to show geographic vocal variation in male barks. CLASSIFICATION: Endangered. They also eat meat, though sea lions eat the meat of fishes, squids, and sea birds instead of land animals. Unlike any other seal, the species reproduces non-annually and asynchronously: The breeding cycle at Dangerous Reef, for example, is a full six months out of phase with that of Lewis Island just 25 km to the south-west. Genus Phoca (common seals) New Zealand Sea Lion (Phocarctos hookeri) Genus Zalophus. Sea lions are taken as ⦠The breeding cycle of the Australian sea lion is unusual within the pinniped family.
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