Subsampling PAM – Dangers of duty cycles

Passive Acoustic Monitoring (PAM) can be a great tool to monitor marine mammal presence over wide areas and long time periods. However, there can be large costs associated with retrieving and replacing the recorders – for example, those deployed offshore or in dynamic environments may require significant time, specialist vessels and personnel in order to retrieve and replace the unit which can be costly to do regularly. Often, in order to get around this issue, there is a trade-off between the deployment duration and the sampling regime.

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