A5106580290- Marine animal studies overview
- Underwater Acoustics Research
- Animal Vocal Communication and Behavior
- Arctic and Antarctic ice dynamics
- Avian ecology and behavior
Curtin University
2019-2023
Abstract An automated algorithm for passive acoustic detection of blue whale D‐calls was developed based on established deep learning methods image recognition via the DenseNet architecture. The detector trained annotated recordings from Antarctic, and performance assessed by calculating precision recall using a separate independent dataset also Antarctic. Detections both human analyst were then inspected an judge to identify any calls missed either approach adjudicate whether apparent...
Since 2001, hundreds of thousands hours underwater acoustic recordings have been made throughout the Southern Ocean south 60° S. Detailed analysis occurrence marine mammal sounds in these circumpolar could provide novel insights into their ecology, but manual inspection entirety all would be prohibitively time consuming and expensive. Automated signal processing methods now developed to point that they can applied data a cost-effective manner. However training evaluating efficacy automated...
Abstract The fin whale is a globally endangered species and listed as threatened in Australia, however no peer-reviewed studies are available to indicate the migratory movements of Australian waters. This study uses passive acoustic monitoring tool identify whales Sampling was conducted from eight locations around Australia between 2009 2017, providing total 37 annual records. Taken together, our observations provide evidence migration through waters, with earliest arrival animals recorded...
The fin whale is listed as globally vulnerable, with ongoing threats to their population, yet little known about the distribution and movements of Southern Hemisphere sub-species, Balaenoptera physalus quoyi . This study assesses in analysing acoustic recordings from 15 locations Antarctic Australian waters 2002 2019. A seasonal presence whales late austral summer autumn (February June) long-term, consistent annual usage areas was identified at Kerguelen Plateau Dumont d’Urville sites. In...
This study presents evidence of diel patterns in fin whale (Balaenoptera physalus) 20 Hz acoustic presence Eastern Antarctic waters. Passive recordings were collected at four sites Antarctica from 2013 to 2019. A generalized linear model fitted by a estimating equation was used test the hypothesis that shows significant variation between light regimes dawn, day, dusk and night. In Indian sector Antarctica, Prydz Southern Kerguelen Plateau sites, significantly more common during night dawn...
An automated algorithm for passive acoustic detection of blue whale D-calls is developed based on established deep learning methods image recognition via the DenseNet architecture. Koogu—an open-source Python package—was used developing detector. The detector was trained annotated recordings from Antarctic, and performance assessed by calculating precision recall using a separate independent dataset also Antarctic. Detections both human analyst were then inspected more experienced to...