Fisheries and Oceans Canada


Roseway Basin, Canada, September 2025


Study objectives

A Teledyne Webb Research Slocum G3s glider equipped with a passive acoustic monitoring system (DMON/LFDCS) was deployed in Roseway Basin for a 3-4 week mission in early September, 2025. The goal of this mission is to acoustically monitor for North Atlantic right whales and other large whale species in the Roseway Basin critical habitat. A second Slocum G3s glider equipped with an Ocean Observer acoustic system was deployed at the same time, and will continue monitoring until the end of October.

Principal Investigators: Robyn Walker (Fisheries and Oceans Canada)

Analysts: Kathleen Buffett, Wilfried Beslin and Robyn Walker (Fisheries and Oceans Canada)





Platform location:




Analyst-reviewed species occurrence maps:




Daily analyst review:

DateSei whaleFin whaleRight whaleHumpback whaleBlue whale
10/16/2025
10/15/2025
10/14/2025
10/13/2025
10/12/2025
10/11/2025
10/10/2025
10/09/2025
10/08/2025
10/07/2025
10/06/2025
10/05/2025
10/04/2025
10/03/2025
10/02/2025
10/01/2025
09/30/2025
09/29/2025
09/28/2025
09/27/2025
09/26/2025
09/25/2025
09/24/2025
09/23/2025
09/22/2025
09/21/2025
09/20/2025
09/19/2025
09/18/2025
09/17/2025
09/16/2025
09/15/2025
09/14/2025
09/13/2025
09/12/2025
09/11/2025
09/10/2025
09/09/2025
09/08/2025
09/07/2025
09/06/2025
09/05/2025
09/04/2025

Detected
Possibly detected
Not detected


Time series:




Diel plot:




Recent background noise:




Links to detailed information:

Automated detection data

Analyst notes

DMON/LFDCS diagnostics

Platform diagnostics





Questions

Please email Mark Baumgartner at mbaumgartner@whoi.edu. For a general desciption of the detection system and the autonomous platforms, visit dcs.whoi.edu.


Acknowledgements

The glider was expertly prepared by Teledyne Webb Research and the Whale Acoustic Slocum Program (WASP) team (DFO). Training and guidance for our inaugural mission with the DMON/LFDCS system was provided by Woods Hole Oceanographic Institution, University of New Brunswick, and the Coastal Environmental Observation Technology and Research (CEOTR) group.


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