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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.
The orca (Orcinus orca), or killer whale, is a toothed whale and the largest member of the oceanic dolphin family. It is the only extant species in the genus Orcinus and is recognizable by its black-and-white patterned body. A cosmopolitan species, it is found in diverse marine environments, from Arctic to Antarctic regions to tropical seas.
Offshore: A third population of orcas in the northeast Pacific was discovered in 1988, when a humpback whale researcher observed them in open water. As their name suggests, they travel far from shore and feed primarily on schooling fish . [ 25 ]
BY PHUONG LE SEATTLE (AP) -- Scientists studying Puget Sound orcas for the past decade now know they are among the most contaminated marine mammals, with pollutants particularly high in young ...
Water depth and the type of habitat — rocky, sandy or coral reef — also played roles in the approaches the whales took. Drone imagery shows a gray whale using a side-swim technique to find food.
Water is the medium of the oceans, the medium which carries all the substances and elements involved in the marine biogeochemical cycles. Water as found in nature almost always includes dissolved substances, so water has been described as the "universal solvent" for its ability to dissolve so many substances.
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.
To do this, McInnis and others examined sightings and photographs of 49 different orcas from 1997 to 2021 to see if they had been cataloged in any other existing orca population.