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CREEM Seminar

Description
Mapping blue and fin whale density over large scales using acoustic data
Presenter
Dr Danielle Harris
Type
Seminar
Open to
All staff and students
Date
Wednesday, 22 November 2017
Time
2:00 PM to 3:00 PM
Where
CREEM seminar room, The Observatory
Contact
Louise Burt
Email
lb9@st-andrews.ac.uk
Website
https://creem2.st-andrews.ac.uk/seminars/
More info

Using data from passive acoustic monitoring (PAM) to estimate animal density can provide a cost-effective alternative to traditional visual surveys. One option when designing a PAM survey is to deploy sensors evenly over a large area of interest, thereby maximizing spatial coverage. However, a consequence of this design is that each vocalization cannot be heard across multiple sensors, restricting the choice of density estimation methods. Density estimation approaches for sparsely distributed sensors have been developed, but may only apply to small ocean areas, and/or require unrealistic assumptions about local animal distribution. Here, data from the Comprehensive Nuclear Test Ban Treaty Organization International Monitoring System (CTBTO IMS) have been utilized to develop and implement a new method for estimating blue and fin whale density that is effective over large spatial scales and is designed to cope with spatial variation in animal density.

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