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Southern resident orcas. The waters of the Salish Sea, on the west coast of North America, are home to several ecologically distinct populations of orcas (Orcinus orca).The area supports three major ecotypes of orcas: northern residents, southern residents, and transients.
Type A or Antarctic orcas look like a "typical" orca, a large, black-and-white form with a medium-sized white eye patch, living in open water and feeding mostly on minke whales. [ 2 ] [ 4 ] Type B1 or pack ice orcas are smaller than type A. [ 4 ] It has a large white eye patch.
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.
[101] [102] [103] Orcas have been observed preying on terrestrial mammals, such as moose swimming between islands off the northwest coast of North America. [99] [104] Orca cannibalism has also been reported based on analysis of stomach contents, but this is likely to be the result of scavenging remains dumped by whalers. [105]
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 southern resident orcas form a closed society with no emigration or dispersal of individuals, and no gene flow with other orca populations. [1]
The event detailed in the study took place on June 18, 2023, 800 meters (875 yards) offshore close to Seal Island near Mossel Bay — about 400 kilometers (250 miles) east of Cape Town — where ...
As of February 2019, captive orcas reside at facilities in North and South America, Europe and Asia. The first North Eastern Pacific orca, Wanda, was captured in November 1961 by a collecting crew from Marineland of the Pacific , and over the next 15 years, around 60 to 70 orcas were taken from Pacific waters for this purpose. [ 2 ]
In 2016, SeaWorld announced it was ending its orca breeding program and planned to phase out its theatrical orca shows. That same year, SeaWorld opted not to appeal a court ruling preventing ...