Long-term passive acoustic recordings track the changing distribution of North Atlantic right whales (Eubalaena glacialis) from 2004 to 2014

Genevieve E Davis, Mark F. Baumgartner, Julianne M. Bonnell, Joel Bell, Catherine L. Berchok, Jacqueline Bort Thornton, Solange Brault, Gary Buchanan, Russell A. Charif, Danielle Cholewiak, Christopher W. Clark, Peter J. Corkeron, Julien Delarue, Kathleen Dudzinski, Leila T Hatch, John A. Hildebrand, Lynne EW Hodge, Holger Klinck, Scott Kraus, Bruce MartinDavid K Mellinger, Hilary Moors-murphy, Sharon L Nieukirk, Douglas P. Nowacek, Susan E. Parks, Andrew J Read, Aaron N Rice, Denise Risch, Ana Širović, Melissa S. Soldevilla, Kate Stafford, Joy E Stanistreet, Erin Summers, Sean Todd, Ann Warde, Sofie M. Van Parijs

Research output: Contribution to journalArticlepeer-review

113 Citations (Scopus)


Given new distribution patterns of the endangered North Atlantic right whale (NARW; Eubalaena glacialis) population in recent years, an improved understanding of spatio-temporal movements are imperative for the conservation of this species. While so far visual data have provided most information on NARW movements, passive acoustic monitoring (PAM) was used in this study in order to better capture year-round NARW presence. This project used PAM data from 2004 to 2014 collected by 19 organizations throughout the western North Atlantic Ocean. Overall, data from 324 recorders (35,600 days) were processed and analyzed using a classification and detection system. Results highlight almost year-round habitat use of the western North Atlantic Ocean, with a decrease in detections in waters off Cape Hatteras, North Carolina in summer and fall. Data collected post 2010 showed an increased NARW presence in the mid-Atlantic region and a simultaneous decrease in the northern Gulf of Maine. In addition, NARWs were widely distributed across most regions throughout winter months. This study demonstrates that a large-scale analysis of PAM data provides significant value to understanding and tracking shifts in large whale movements over long time scales.
Original languageEnglish
Article number13460
JournalScientific Reports
Issue number1
Early online date18 Oct 2017
Publication statusPublished - 1 Dec 2017


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