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Although the crabeater seal is sympatric with the other Antarctic seal species (Weddell, Ross and leopard seals), the specialization on krill minimizes interspecific food competition. Among krill-feeding whales , only blue whales ( Balaenoptera musculus ) and minke whales ( B. acutorostrata ) extend their range as far south as the pack ice ...
Thus, the crabeater seal, with the most specialized sieve-like dental features, is the only seal that feeds predominantly on Antarctic krill, while the leopard seal is the only seal which actively preys on other seals and penguins, while still retaining the ability to filter-feed on krill. [4]
A group of crabeater seals relaxing on an iceberg. These pinnipeds are planktivores and feed primarily on krill. Many fishes are planktivorous during all or part of their life cycles, and these planktivorous fish are important to human industry and as prey for other organisms in the environment like seabirds and piscivorous fishes. [31]
Seals typically swallow their food whole, and will rip apart prey that is too big. [97] [98] The leopard seal, a prolific predator of penguins, is known to violently shake its prey to death. [99] Complex serrations in the teeth of filter-feeding species, such as crabeater seals, allow water to leak out as they swallow their planktonic food. [85]
It feeds on a wide range of prey including cephalopods, other pinnipeds, krill, fish, and birds, particularly penguins. It is the only species in the genus Hydrurga. Its closest relatives are the Ross seal, the crabeater seal and the Weddell seal, which together are known as the tribe of Lobodontini seals.
A crabeater is an animal species that feeds on crabs. It may refer to: Cobia, a species of fish which also is commonly called crabeater; Crabeater seal, a species of seal; Crabeater gull, also known as Olrog's gull; Crab-eating fox, a canid species; Crab-eating raccoon, a raccoon species; Crab-eating mongoose, a mongoose species; Crab-plover, a ...
Crabeater seals (Lobodon carcinophagus) and Weddell seals (Leptonychotes weddellii) form breeding colonies, whereas leopard seals (Hydrurga leptonyx) and Ross seals (Ommatophoca rossii) live solitary lives. Although these species hunt underwater, they breed on land or ice and spend a great deal of time there, as they have no terrestrial predators.
Weddell seal Crabeater seal. There are over 260 species of carnivorans, the majority of which feed primarily on meat. They have a characteristic skull shape and dentition. Suborder: Caniformia. Family: Otariidae (eared seals, sealions) Genus: Arctocephalus. Antarctic fur seal, Arctocephalus gazella [2] LC; Subantarctic fur seal, Arctocephalus ...