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Passive Acoustic Studies of North Atlantic Right Whales

Published by Southeast Fisheries Science Center | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: January 27, 2026 | Last Modified: 2024-02-29T00:00:00.000+00:00
Passive acoustic monitoring buoys have been deployed in shallow waters between North Carolina and Northern Florida since 2003. These units are bottom mounted recorders that collect data on sound for periods of 3-6 months. The resulting data are analyzed to identify vocalizations that are unique to North Atlantic Right whales to document their occurrence in these waters. These data have been used to evaluate the seasonal occurrence of North Atlantic right whales in waters south of North Carolina during winter months.

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