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Northern resident orcas, also known as northern resident killer whales (NRKW), are one of four separate, non-interbreeding communities of the exclusively fish-eating ecotype of orca in the northeast portion of the North Pacific Ocean.
A pod of orcas moving through the inland waters of Alaska. The Orca Welfare and Safety Act is a bill passed in the U.S. state of California in 2016. The bill phases out the holding of killer whales in captivity and establishes standards for treatment of all remaining captive orcas in zoos.
Captive killer whale attacks on humans fall mostly into the categories of biting during feeding, ramming in the water, and holding under water. Killer whales biting trainers during feeding or shows is generally the mildest form of attack seen, but can escalate to an animal dragging the trainer underwater and holding them there until they lose ...
The primary diet of transient orcas includes harbor seals, Steller sea lions, harbor porpoises, Dall's porpoises, Pacific white-sided dolphins, and Minke whales. Among these, the harbor seal is the most common prey; one survey estimated that more than half of the diet of transients in the Salish Sea region consists of harbor seals. [ 16 ]
In the spring of 2009, a 5-year-old female orca Skyla turned on an unidentified trainer while performing in one of Loro Parque Tenerife's daily shows. Skyla started pushing her trainer through the water and up against the side of the pool. Subsequently her "water work" was suspended, and only senior trainers are allowed to work with her. [75]
So far, presence of congeners of the three toxins in whale feces are found to be proportionate to the levels of these chemicals measured in samples of orca flesh during biopsy. The results indicate that restoring the abundance and quality of available prey is an important first measure to restoring orca populations in the area under study. [16]
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.
While most predation occurs in the water, coordinated attacks by groups of killer whales creating a wave to wash the hauled-out seal off floating ice have been observed. [24] Orca packs generally pursue other seals, however, as crabeaters are known to be a tenacious species that make themselves more trouble to catch than they're worth.