Effects of duty-cycled passive acoustic recordings on detecting the presence of beaked whales in the northwest Atlantic

TitleEffects of duty-cycled passive acoustic recordings on detecting the presence of beaked whales in the northwest Atlantic
Publication TypeJournal Article
Year of Publication2016
AuthorsStanistreet JE, Nowacek DP, Read AJ, Baumann-Pickering S, Moors-Murphy HB, Van Parijs SM
JournalThe Journal of the Acoustical Society of America
Volume140
PaginationEL31-EL37
Date Published2016/06
Keywordsbioacoustics; underwater sound
Abstract

This study investigated the effects of using duty-cycled passive acoustic recordings to monitor the daily presence of beaked whale species at three locations in the northwest Atlantic. Continuous acoustic records were subsampled to simulate duty cycles of 50%, 25%, and 10% and cycle period durations from 10 to 60 min. Short, frequent listening periods were most effective for assessing the daily presence of beaked whales. Furthermore, subsampling at low duty cycles led to consistently greater underestimation of Mesoplodon species than either Cuvier's beaked whales or northern bottlenose whales, leading to a potential bias in estimation of relative species occurrence.

DOI10.1121/1.4955009
Student Publication: 
No