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A study also found that Chinook salmon found in South Puget Sound have less fat than those farther north, causing an increased need for consumption. [114] Due to four dams in the Lower Snake River Dam System, native salmon flow has been heavily restricted, endangering both Chinook Salmon and Southern Resident Killer Whales.
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 ]
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.
The closure of a marine zoo in the south of France has sparked intense debate over the future of its inhabitants, including two beloved orcas. Marineland Antibes, near Cannes, closed for good on ...
Orcas were previously spotted sporting salmon on their heads in the late 1980s, said Deborah Giles, science and research director of Wild Orca, a nonprofit conservation and research group.
The Maritime Archaic people of Newfoundland also had great respect for orcas, as evidenced by stone carvings found in a 4,000-year-old burial at the Port au Choix Archaeological Site. [ 179 ] [ 180 ] In the tales and beliefs of the Siberian Yupik people, orcas are said to appear as wolves in winter, and wolves as orcas in summer.
Found worldwide, orcas are the ocean’s apex predators. They prey on a wide variety of creatures: fish, marine mammals like seals and dolphins , sea turtles, and cephalopods such as squid.
Offshore orcas, first described in 1979, are primarily found more than 10 miles (16 km) from shore. Just over 280 offshore orcas are known from the Eastern North Pacific, primarily occurring off the coast of British Columbia.