North Atlantic Right Whale (Eubalaena glacialis) Passive Acoustic Detections Report: December 2022 – May 2023

Right whales produce a variety of acoustic signals, including stereotyped, frequency modulated upsweep calls, gunshot calls, variable calls, and moans (Parks et al., 2005, Parks et al., 2019a), which can be identified to species level by trained analysts. To further explore the seasonal movements and distribution of migrating and calving right whales and the soundscapes they inhabit, we deployed long-term passive acoustic recorders at 8 coastal sites from North Carolina to Florida and evaluated recordings for the presence of North Atlantic right whale upcalls.