This recording of orcas (Orcinus orca) is part of a series of recordings from an oceanic soundscape project using a deep-sea cabled observatory off the California coast. More information about this research project is available in a publication.
The recording was made on 13 April 2018. © 2018 Monterey Bay Aquarium Research Institute
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Thanks, orcasound! We have a lot to learn about orcas in our region and will tap into orcasound resources for this purpose.
This doesn't sound like SRKWs (which rarely make it so far south along the U.S. west coast), so the ecotype is likely west coast transient or offshore.
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