The crabeater seal (Lobodon carcinophaga), also known as the krill-eater seal, is a true seal with a circumpolar distribution around the coast of Antarctica. They are the only member of the genus Lobodon. They are medium- to large-sized (over 2 m in length), relatively slender and pale-colored, found primarily on the free-floating pack ice that extends seasonally out from the Antarctic coast, which they use as a platform for resting, mating, social aggregation and accessing their prey. They are by far the most abundant seal species in the world. While population estimates are uncertain, there are at least 7 million and possibly as many as 75 million individuals.[2] This success of this species is due to its specialized predation on the abundant Antarctic krill of the Southern Ocean, for which it has uniquely adapted, sieve-like tooth structure. Indeed, its scientific name, translated as "lobe-toothed (lobodon) crab eater (carcinophaga)", refers specifically to the finely lobed teeth adapted to filtering their small crustacean prey.[3]
Despite its name, the crabeater seal does not eat crabs.
As well as being an important krill predator, the crabeater seal's pups are an important component of the diet of leopard seals (H. leptonyx).
^Hückstädt, L. (2015). "Lobodon carcinophaga". IUCN Red List of Threatened Species. 2015: e.T12246A45226918. doi:10.2305/IUCN.UK.2015-4.RLTS.T12246A45226918.en. Retrieved 19 November 2021.
^Bengtson, J. A. (2002). "Crabeater seal Lobodon carcinophaga". In Perrin, W. F.; Wursig, B.; Thiewissen, J. G. M. (eds.). Encyclopedia of marine mammals. London, UK: Academic Press. pp. 290–292.
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