Roaring and repetition : how bowhead whales adjust their call density and source level (Lombard effect) in the presence of natural and seismic airgun survey noise

• Published in: The Journal of the Acoustical Society of America
• Main Authors: Thode, Aaron M., Blackwell, Susanna B., Conrad, Alexander S., Kim, Katherine H., Marques, Tiago, Thomas, Len, Oedekoven, Cornelia S., Harris, Danielle, Broker, Koen
• Other Authors: University of St Andrews. School of Mathematics and Statistics, University of St Andrews. Scottish Oceans Institute, University of St Andrews. Centre for Research into Ecological & Environmental Modelling, University of St Andrews. Statistics, University of St Andrews. Marine Alliance for Science & Technology Scotland, University of St Andrews. Sea Mammal Research Unit
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2020
• Subjects: QH301 Biology; GC Oceanography; 3rd-DAS; QH301; GC; Lombard; Beaufort Sea; bowhead whale
• Online Access: http://hdl.handle.net/10023/19739; https://doi.org/10.1121/10.0000935

Over 500 000 automated and manual acoustic localizations, measured over seven years between 2008 and 2014, were used to examine how natural wind-driven noise and anthropogenic seismic airgun survey noise influence bowhead whale call densities (calls/km2/min) and source levels during their fall migra...