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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.
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 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.
The nutrient rich waters that provide this feeding ground for the whales often do not have good visibility. The only indication of a bubble net occurring that can be sighted on the surface is a ring of bubbles coming up. It is also common to see birds flock to the area where the whales will feed hoping to catch the fish being brought to the ...
Drone videos of gray whales off Oregon have revealed new details about how the marine mammals find food. The findings were described in studies this summer. Drone video of gray whales offers new ...
They then slap the ball with their tail flukes, either stunning or killing up to 10–15 herring with a successful slap. The herring are then eaten one at a time. Carousel feeding has been documented in only the Norwegian killer whale population and with some oceanic dolphin species. [28] Sperm whales may also herd prey.
Orcas or killer whales have a cosmopolitan distribution and several distinct populations or types have been documented or suggested. Three to five types of orcas may be distinct enough to be considered different races , [ 1 ] subspecies , or possibly even species [ 2 ] (see species problem ).
Attacks on large whales in the region are relatively rare and no incidents of successful predation have occurred, although isolated incidents of transients harassing gray whales and humpback whales, including predation, have been observed outside the Salish Sea. However, interactions do sometimes become spectacular; in October 2022, a rare ...