Particle motion: the missing link in underwater acoustic ecology.
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Nedelec, Sophie L.
Radford, Andrew N.
Simpson, Stephen D.
Merchant, Nathan D.
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1. Sound waves in water have both a pressure and a particle-motion component, yet few studies of underwater acoustic ecology have measured the particle-motion component of sound. While mammal hearing is based on detection of sound pressure, fish and invertebrates (i.e. most aquatic animals) primarily sense sound using particle motion. Particle motion can be calculated indirectly from sound pressure measurements under certain conditions, but these conditions are rarely met in the shelf-sea and shallow-water habitats that most aquatic organisms inhabit. Direct measurements of particle motion have been hampered by the availability of instrumentation and a lack of guidance on data analysis methods. 2. Here, we provide an introduction to the topic of underwater particle motion, including the physics and physiology of particle-motion reception. We include a simple computer program for users to determine whether they are working in conditions where measurement of particle motion may .....
JournalMethods in Ecology and Evolution
Sustainable Development Goals (SDG)14.a
Essential Ocean Variables (EOV)Ocean sound
CitationNedelec, S.L., Campbell, J., Radford, A.N., Simpson, S.D. and Merchant, N.D. (2016) Particle motion: the missing link in underwater acoustic ecology. Methods in Ecology and Evolution, 7, pp.836-842. DOI: https://doi.org/10.1111/2041-210X.12544
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