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Resident (fish-eating) orcas: The curved dorsal fins are typical of resident females. Resident: These are the most commonly sighted of the three populations in the coastal waters of the northeast Pacific. Residents' diets consist primarily of fish [6] and sometimes squid, and they live in complex and cohesive family groups called pods. [7]
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.
Although resident orcas have never been observed to eat other marine mammals, they occasionally harass and kill porpoises and seals for no apparent reason. [105] Some dolphins recognize resident orcas as harmless and remain in the same area. [106] Orcas do consume seabirds but are more likely to kill and leave them uneaten.
Many whale watching organizations throughout the region target the orcas, including resident and transient groups, and often work with nonprofit organizations like the Center for Whale Research and The Whale Museum to promote orca conservation. Native American tribes and First Nations throughout the area hold the whales in high regard.
Scientists saw a male orca kill a juvenile great white shark within minutes last year. The hunting behavior could be a sign of a wider shift in the marine ecosystem.
This is the first time orcas have been documented using this precision feeding technique in this region. [11] Starboard was first filmed via drone killing a great white in May 2022 around Mossel Bay, alongside four other orcas [12] – this was the first time ever this predation has been filmed. After the attack, white sharks in the area fled ...
A dramatic scene played out off the coast of Monterey Bay, California, last week when a pod of 30 hungry orcas attacked two adult gray whales in a rare display of predatory force. Evan Brodsky, of ...