by Staff Writers
Exeter UK (SPX) Mar 02, 2016
Most aquatic species sense sound via particle motion, yet few studies on underwater acoustic ecology have included measurements of particle motion.
In response, researchers from the Universities of Exeter, Bristol and Leiden and CEFAS have developed a user-friendly introduction to particle motion, explaining how and when it ought to be measured, and provide open-access analytical tools to maximise its uptake.
A growing number of studies on the behaviour of aquatic animals are revealing the importance of underwater sound, yet these studies typically overlook the component of sound sensed by most species: particle motion.
Lead author, Dr Sophie Nedelec from the University of Bristol said: "The pressure component of underwater sound is commonly measured; this is the component of sound heard by mammals and also some fish, but all fish and many invertebrates predominantly or exclusively detect particle motion.
"Fish and invertebrates are far more numerous than mammals, they underpin aquatic food webs, and are socio-economically important across the globe. So if we want to understand underwater acoustic ecology it is vital that we consider particle motion."
Co-author, Dr Steve Simpson from the Biosciences department at the University of Exeter said: "Sound is an important orientation cue and communication channel for many species, but man-made noise is on the increase, affecting behaviour, physiology and development. Measurement of particle motion will enable us to better understand the threats that many aquatic species face, from their perspective."
"We've known that particle motion was important for years but until recently the availability of instrumentation and a lack of understanding of particle motion has held many back from measuring and reporting it.
This paper and the tools that go with it will provide support and tools to researchers, consultants and policy-makers," said Dr Andy Radford from the University of Bristol.
This research is published in Methods in Ecology and Evolution: "Particle motion: University of Exeter
University of Exeter
Water News - Science, Technology and Politics
|The content herein, unless otherwise known to be public domain, are Copyright 1995-2017 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement|