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Some dolphins recognize resident orcas as harmless and remain in the same area. [106] Orcas do consume seabirds but are more likely to kill and leave them uneaten. Penguin species recorded as prey in Antarctic and sub-Antarctic waters include gentoo penguins, chinstrap penguins, king penguins and rockhopper penguins. [107]
Over 2,000 individual resident-like orcas and 130 transient-like orcas have been identified off Russia. [29] At least 195 individual orcas have been cataloged in the eastern tropical Pacific, ranging from Baja California and the Gulf of California in the north to the northwest coast of South America in the south and west towards Hawaii. [31]
The research vessel Noctiluca of the Northwest Fisheries Science Center in close proximity to an orca. The southern resident orcas, also known as the southern resident killer whales (SRKW), are the smallest of four communities of the exclusively fish-eating ecotype of orca in the northeast Pacific Ocean.
The hunting of baleen whales in the vicinity of Antarctica began around 1904, with the establishment of a whaling station on South Georgia. Hunting of blue whales was banned in 1966, and finally brought under control in the 1970s. By that time the blue whale population had been reduced to 0.15% of its original size. [3]
Few people can say they’ve lived on the White Continent, but those who do have incredible stories. What it’s really like to live in Antarctica Skip to main content
The Southern Ocean around Antarctica is home to 10 cetaceans, many of them migratory. There are very few terrestrial invertebrates on the mainland, although the species that do live there have high population densities. High densities of invertebrates also live in the ocean, with Antarctic krill forming dense and widespread swarms during the ...
Articles relating to orcas (Orcinus orca, killer whales), toothed whales that are the largest members of the oceanic dolphin family. It is the only extant species in the genus Orcinus . Orcas are recognizable by their black-and-white patterned body.
"Killer whales can easily travel 25 miles an hour," she said. "To punch a hole in the side of a dolphin and hit it so hard that it's jumping so high out of the water — the force is tremendous."