We are proud to announce the publication of a new book entitled: Listening in the Ocean by Whitlow Au and Marc Lammers- in which our own Dr Ursula Verfuss co-authored the chapter: Listening to Echolocation Clicks with PODs.
The chapter was led by Nick Tregenza with input from Steve Dawson. Will Rayment and Ursula. In this chapter, Ursula presents some of her former work, showing the spatial and temporal distribution of harbour porpoise in the German Baltic Sea, revealed with T-PODs. During her PhD, Ursula investigated the echolocation behaviour of harbour porpoise during fish catching and for orientation while travelling. This work provided details which can be used to interpret the behaviour of harbour porpoise from echolocation trains detected by T- and C-PODs. An overview of this is captured in the chapter sections: Inferring behaviour from POD data and Landmark Sequences.
“Monitoring echolocation using SAMs—static acoustic monitors—such as T-PODs or, more recently, C-PODs—has provided a wealth of information on the fine-scale distribution and activity of dolphins, porpoises and other toothed whales. Effects of marine construction noise on these animals have been identified at much longer ranges than expected. Strong diel, tidal and seasonal patterning of the animals’ habitat use has been found including coastal sites that are regularly used only at night. Arrays of SAMs are now being used for longer term monitoring to assess smaller population trends of lower density populations than could previously be assessed within the limits of economic feasibility. PODs have given insights into the significance of seabed ultrasonic noise from sediment in suspension and diel patterns of activity of benthic organisms, and have also revealed unknown sources of very fast trains of tonal clicks.”
Check out some of Ursulas work with SMRU Consulting:
- LOW VISIBILITY REAL TIME MONITORING
- POST CONSENT MONITORING REVIEW
- INVERGORDON REAL TIME PAM & MITIGATION
- INVERGORDON PAM MONITORING
Check out some of SMRU Consultings work using CPODs to detect harbour porpoise: