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UrduScientists have discovered the cuisine preferences of two resident killer whale populations: the Alaska residents and the endangered southern residents. The two populations show broad preference for salmon, particularly Chinook, chum and coho. But they differ in when they switch to hunting and eating different salmon species, as well as the other fish species they pursue to supplement their diets.
Tag: Orcas
Killer whales’ diet more important than location for pollutant exposure, study says
Killer whales are some of the oceans’ top predators, but even they can be exposed to environmental pollution. In the largest study to date on North Atlantic killer whales, researchers in ACS’ Environmental Science & Technology report the levels of pollutants in 162 individuals’ blubber.
2018–2022 Southern Resident killer whale presence in the Salish Sea: continued shifts in habitat usage
Monika Wieland Shields, Director of the Orca Behavior Institute, has observed orcas in the Salish Sea, a marginal sea of the Pacific Ocean located in the Canadian province of British Columbia and the U.S. state of Washington, since 2000.
Tastes differ – even among North Atlantic killer whales
Killer whales (also known as orcas) are intelligent predators. While it’s known that killer whales in the Pacific Northwest exploit widely different food types, even within the same region, we know much less about the feeding habits of those found throughout the North Atlantic.