Please use this identifier to cite or link to this item: https://doi.org/10.1109/JOE.2006.880427
Title: Visual and passive acoustic marine mammal observations and high-frequency seismic source characteristics recorded during a seismic survey
Authors: Potter, J.R. 
Thillet, M.
Douglas, C.
Chitre, M.A. 
Doborzynski, Z.
Seekings, P.J. 
Keywords: Acoustics
Beaked whale
Marine mammal
Seismic surveying
Issue Date: Apr-2007
Citation: Potter, J.R., Thillet, M., Douglas, C., Chitre, M.A., Doborzynski, Z., Seekings, P.J. (2007-04). Visual and passive acoustic marine mammal observations and high-frequency seismic source characteristics recorded during a seismic survey. IEEE Journal of Oceanic Engineering 32 (2) : 469-483. ScholarBank@NUS Repository. https://doi.org/10.1109/JOE.2006.880427
Abstract: In this paper, we present marine mammal observation statistics, high-frequency seismic source characteristics, and example denoising of marine mammal acoustical recordings using data collected during the mitigation and monitoring program for a 3-D seismic survey by EnCana Corporation, Calgary, AB, Canada, in the Northwest Atlantic during 2003. Marine mammals were observed both visually and acoustically. No marine mammal incidents or adverse reactions were observed during the survey. Acoustical observations were made by the Sea map Passive Acoustic Cetacean Monitoring System (SPACMS), consisting of two hydrophones placed 50 m apart, towed ahead of and to one side of the seismic source. Visual and acoustical detections were uncorrelated, indicating the complementary nature of the two observational techniques. Visual detections were more common per hour of effort than acoustical detections. Acoustical detection rates showed no significant day-night difference. Marine mammals appeared to have avoided very close ranges (
Source Title: IEEE Journal of Oceanic Engineering
URI: http://scholarbank.nus.edu.sg/handle/10635/110915
ISSN: 03649059
DOI: 10.1109/JOE.2006.880427
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