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Acoustic Monitoring of Beluga Whales and Noise in Cook Inlet October 2008 - March 2009

May 18, 2009

A collaborative project to record and analyze ambient noise in Cook Inlet, Alaska, and monitor Cook Inlet beluga whales

When this project was first proposed, there was the recognition that deploying acoustic recorders on moorings in Cook Inlet would be challenging due to the extreme environmental conditions of the inlet, especially the large tidal fluctuations and sedimentation. Further, the amount of research conducted on the acoustics of beluga whales is quite limited. Based on the success of the field trials conducted in Cook Inlet during the summer of 2007 and progress on other beluga acoustic projects, the approach to our study was reviewed and revised during the current reporting period, yet our research objectives have remained the same:

  • Monitor acoustic call data from Cook Inlet belugas to improve the understanding of their seasonal presence in the lower and mid regions of Cook Inlet and the occurrence of seasonal shifts in their distribution.
  • Monitor acoustic call data from killer whales to improve the understanding of their seasonal presence in Cook Inlet.

Last updated by Alaska Regional Office on 06/07/2018

Cook Inlet Beluga Whale Beluga Whale