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Jentink, 1892. The Japanese sea lion (Zalophus japonicus) (Japanese: ニホンアシカ, romanized: Nihon ashika, Korean: 강치, 바다사자) [3] was an aquatic mammal that became extinct in the 1970s. It was considered to be a subspecies of the related California sea lion (Z. californianus) until 2003. They inhabited the western North ...
Sea lion. Sea lions are pinnipeds characterized by external ear flaps, long foreflippers, the ability to walk on all fours, short and thick hair, and a big chest and belly. Together with the fur seals, they make up the family Otariidae, eared seals. The sea lions have six extant and one extinct species (the Japanese sea lion) in five genera.
Oct 17, 2023 · Japanese sea lions once swam in abundance in the waters around Japan. Hunted for their fur and oil and suffering habitat loss, herds dwindled, and today the animals are thought to be extinct.
- Endangered Sea Lion Species
- Threats
- What We Can Do
The genetically isolated Australian sea lion is believed to number 6,500 mature individuals in a decreasing global population throughout Western and South Australia and is endangered by the IUCN and on the state level within its existing range. Similarly, the Galapagos sea lion jumped from vulnerable to endangered by the IUCN in 2008 and is fully p...
Sea lion species are vulnerable to pollution, climate change, bycatch, and diseases introduced by other species. Complications from gillnet fishing represent a considerably significant threat to both Australian and New Zealand sea lions, while Galapagos sea lions are more susceptible to climate change, disease, and pollution.
Like seals, sea lions belong to a group of marine mammals known as pinnipeds who live primarily in the ocean but are able to come on land for long periods of time thanks to their adapted "foot-like" flippers. Because of this, they're not the easiest to count, identify, and monitor. Scientists in Glacier Bay, Alaska, are using a combination of count...
Dec 6, 2021 · Japanese sea lions had no natural predators, so the main cause of their extinction were humans. They were hunted for their fat (to make oil lamps), their meat, their skins and even their whiskers (used to make pipe cleaners). Fishermen killed them, to have more fish to themselves. In the 19th century, their numbers were around 40,000. By 1915 ...
Status of the Japanese sea lion. pp. 80-81 in Seals. IUCN supplemental paper Number 39. International Union for the Conservation of Nature. Odell, D.K. 1981. California sea lion - Zalophus californianus Lesson, 1828. pp. 67-97 in S.H. Ridgway and R.J. Harrison (eds.), Handbook of Marine Mammals, Vol. 1: The walrus, sea lions, fur seals and sea ...
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Jul 22, 2019 · There have been seven species of sea lion identified, however one of them – the Japanese sea lion – became extinct in the 1950s. The sea lion species are: Australian sea lion: Neophoca cinerea * New Zealand sea lion: Phocarctos hookeri * California sea lion: Zalophus californianus; Galapagos sea lion: Zalophus wollebaeki*
