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PALAOA An Autonomous SAM Device in the Atka Bay

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Kindermann, L. (2006): PALAOA An Autonomous SAM Device in the Atka Bay , Static Acoustic Monitoring (SAM) as a tool for Environmental Impact Studies with emphasis on Offshore Wind Farm Constructions. International Workshop on 4. September 2006, Stralsund, Germany. .
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Abstract:

The PerenniAL Acoustic Observatory in the Antarctic Ocean (PALAOA, Hawaiian whale) was set up on the Ekström ice shelf, Antarctica in December 2005 near the German Neumayer Station (Boebel et al., 2006). It is intended to record the underwater soundscape in the vicinity of the shelf ice edge over the duration of several years. These long-term recordings will allow studying the acoustic repertoire of whales and seals continuously in an environment almost undisturbed by humans. The data will be analyzed to (1) register species specific vocalizations, (2) infer the approximate number of animals inside the measuring range, (3) calculate their movements relative to the observatory, and (4) examine possible effects of the sporadic shipping traffic on the acoustic and locomotive behaviour of marine mammals. The data, which are largely free of anthropogenic noise, provide also a base to set up passive acoustic mitigation systems used on research vessels. Noise-free bioacoustic data thereby represent the foundation for the development of automatic pattern recognition procedures in the presence of interfering sounds, e.g. propeller noise.

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