Results 211 to 220 of about 12,772 (249)
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Glider-Based Passive Acoustic Monitoring in the Arctic
Marine Technology Society Journal, 2014AbstractPersistently poor weather in the Arctic makes traditional marine mammal research from aircraft and ships difficult, yet collecting information on marine mammal distribution and habitat utilization is vital for understanding the impact of climate change on Arctic ecosystems.
Mark F. Baumgartner +4 more
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Passive Acoustic Detection and Monitoring of Schools of Herring
The Journal of the Acoustical Society of America, 2008Passive acoustic detection and monitoring of various marine fishes has recently received much attention in the literature. It has been recognized that passive acoustic techniques have the potential to complement traditional active acoustic surveys and to significantly increase their overall efficiency, if the acoustic signatures of the considered ...
Thomas R. Hahn, Gary L. Thomas
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Passive Acoustic Monitoring of Cetaceans
2011Passive acoustic monitoring is increasingly used by the scientific community to study, survey and census marine mammals, especially cetaceans, many of which are easier to hear than to see. PAM is also used to support efforts to mitigate potential negative effects of human activities such as ship traffic, military and civilian sonar and offshore ...
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The possibility of passive acoustic monitoring of a Scuba Diver
Doklady Earth Sciences, 2016The problem of controlling the state and location of scuba divers is of importance. This work consider the possibility to use for this purpose a low-frequency noise of a scuba diver. The noise of a scuba diver under a dry swimming suite near the trachea and in the water at a distance of 50 m was recorded.It wa shown that both sygnals are characterized ...
V. I. Korenbaum +9 more
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A Human-in-the-Loop Tool for Annotating Passive Acoustic Monitoring Datasets
Proceedings of the Thirty-Second International Joint Conference on Artificial Intelligence, 2023Deep learning methods are well suited for data analysis in several domains, but application is often limited by technical entry barriers and the availability of large annotated datasets. We present an interactive machine learning tool for annotating passive acoustic monitoring datasets created for wildlife monitoring, which are time-consuming and ...
Hannes Kath +2 more
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Passive Acoustic Monitoring of Surface Vessel Activity
Volume 4: Ocean Engineering; Ocean Renewable Energy; Ocean Space Utilization, Parts A and B, 2009Monitoring human activity in remote marine areas is a challenging problem to which acoustic methods present a promising solution. This paper develops and demonstrates automated passive acoustic methods to estimate ranges to surface vessels using a single seafloor-mounted hydrophone.
Eva-Marie Nosal, Miloslav Nosal
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Passive acoustics for monitoring bottom contact of dredge
2017 IEEE/OES Acoustics in Underwater Geosciences Symposium (RIO Acoustics), 2017In Argentina, stock assessment of Patagonian scallop (Zygochlamys patagonica) is carried out applying the swept area method using a dredge. Hence, for the accuracy of the biomass estimation contact of the dredge with the bottom is critical. Generally during these surveys the dredge contact with the bottom is determined by taking into account warp ...
Ariel Gustavo Cabreira +2 more
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Passive acoustic monitoring of cetaceans with KM3NeT acoustic receivers
Journal of Instrumentation, 2021C. Guidi, M. Bou-Cabo, G. Lara
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Feeding behavior of wild dugongs monitored by a passive acoustical method
The Journal of the Acoustical Society of America, 2006Little is known about feeding behavior of wild dugongs (Dugong dugon) because direct measurements of feeding events in the water were scarcely feasible. In this study, the authors achieved the first successful feeding sound monitoring in a seagrass area using a full-band underwater recording system (called automatic underwater sound monitoring system ...
Chika, Tsutsumi +6 more
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Beta Testing of Persistent Passive Acoustic Monitors
2010Abstract : Long-endurance oceanographic sampling platforms such as gliders and profiling floats provide a new opportunity for acquiring acoustic signals from marine animals with immediate applications in conservation and mitigation. Our objective is to produce a reliable system for persistent passive acoustic monitoring of marine animals.
Tom Hurst +3 more
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