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The Center for Whale Research records all births and deaths, and collects demographic data of the southern resident orca population. [62] From 1990 to 2023, 61 southern resident orca calves have survived beyond birth, while 107 southern residents have died.
Resident orcas can be divided into at least three distinct communities; northern, southern and southern Alaskan. Southern Alaskan resident orcas are distributed from southeastern Alaska to the Kodiak Archipelago and number over 700 individuals. These whales consist of two interbreeding clans distinguished by acoustic calls and whose ranges ...
Of these, 50 were taken to oceanariums, 12 died during capture, and 201 were released. The impact of this take on local populations was significant given that 47 of the 62 captured or killed orcas were southern residents, corresponding to more than half of the southern resident population. [24]
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Southern resident killer whales are critically endangered and most likely on a path toward extinction. ... By 1974, just 71 were left in the wild. Since then, the population has fluctuated ...
Whales in Bellingham Bay are uncommon, but the sightings have also been increasing over the last few years.
Orcas also prey on larger species such as sperm whales, grey whales, humpback whales and minke whales. [ 84 ] [ 40 ] On three separate occasions in 2019 orcas were recorded to have killed blue whales off the south coast of Western Australia, including an estimated 18–22-meter (59–72 ft) individual. [ 89 ]
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