MR7.1.1 Quantifying Porpoise Depth Distributions and Underwater Behaviour in Tidal Rapids Areas

Report

Title: MR7.1.1 Quantifying Porpoise Depth Distributions and Underwater Behaviour in Tidal Rapids Areas
Publication Date:
July 01, 2015
Document Number: MMSS/001/11
Pages: 12
Sponsoring Organization:
Receptor:

Document Access

Website: External Link
Attachment: Access File
(896 KB)

Citation

Macaulay, J.; Gordon, J.; Coram, A.; Northridge, S. (2015). MR7.1.1 Quantifying Porpoise Depth Distributions and Underwater Behaviour in Tidal Rapids Areas. Report by Sea Mammal Research Unit (SMRU). pp 12.
Abstract: 

A vertical hydrophone array has been developed to provide new insights into harbour porpoise dive depths, underwater movements and echolocation behaviour in tidal habitats. This information is of direct relevance to understanding and reducing environmental impacts of tidal current driven turbines. Analysis of field data is on-going however we have demonstrated that it is possible to investigate the behaviour of porpoises in tidal areas using passive acoustics and further work is likely to yield reliable depth distributions.

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