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In northern residents, females do most of the herding and hunting of salmon, whereas in southern residents, males do most of the hunting. It has been found that female southern residents do not actively forage when nursing calves, so males must hunt in their place; in northern residents, females continue to hunt even when nursing calves.
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]
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]
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A 2024 study supported the elevation of Eastern North American resident and transient orcas as distinct species, O. ater and O. rectipinnus respectively. [28] The Society for Marine Mammalogy declined to recognize the two species, citing uncertainty as to whether the types constituted unique species or subspecies.
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He was a member of J Pod of the Southern Resident Killer Whales, [18] the population of killer whales most damaged by subsequent captures. [19] The third capture for display occurred in June 1965 when a fisherman found a 22-foot (6.7 m) male orca in his floating salmon net that had drifted close to shore near Namu, British Columbia.
A pair of orca whales were spotted sharing a meal along the Channel Islands off the coast of Southern California, video uploaded on June 27 shows.Drone footage captured by Evan Brodsky shows the ...