Tag: communication

Long distance calling!

While there are a number of varied species of baleen whales that are adapted to their particular habitats and natural histories, there are a few things they have in common; they’re all much larger than we are, they all graze…

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All a matter of perspective

High frequency acoustic communications. Illus: Andy Lovas

I’ve just finished up a week in Pittsburgh, PA at an Acoustics Society conference. Because sound and acoustics intersect so many fields, Society meetings are some of the most diverse gatherings of disciplines under one roof – with sessions on…

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Bio-inspired communication signals

Of the many papers presented this week at the Institute of Electronic and Electrical Engineers/Marine Technology Society (IEEE/MTS) Ocean conference two really stood out as possible solutions to the impacts of communication signals on marine mammals. These papers discussed using…

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Ultrasound Ocean Noises Pose Risk to Marine Life

Noise pollution has now become one of the common themes of human-generated impacts on the ocean. Shipping noise, military sonar, and seismic airgun surveys are increasingly becoming part of the public discussion in marine conservation. These noises are easy for…

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Shark Week! Tagging – a tale of Sharks, Fish, and Seals

Everybody is interested in Great White sharks, and scientists are no exception. One advantage of being credentialed is the opportunity to look a lot deeper into the subject using tools and equipment not readily available to the public. Satellite tagging…

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New discovery of songful bowheads

It’s always a delight to learn something new about ocean life. Some 40 years ago whale researcher Roger Payne came to understand that Humpback whales sang complex, beautiful, and patterned songs. Their haunting melodies released in an LP as “The…

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Singing fish lead to conservation programs

OCR associate and marine biologist Mario Rivera has received coverage in Costa Rica’s “El Financiero” for his work with singing fish. He is using sound-pattern recognition software to identify breeding aggregations of fish – in this case “weakfish” (Cynoscion squamipinnis) to determine…

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Crustaceans need ears too!

A preponderance of marine bioacoustic work has been focused on marine mammals – whales, dolphins, and pinnipeds. This is in large part due to the “charismatic megafauna” paradigm where big, complicated animals with recognizable expressions attract most human interest. While…

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Acoustic Communication by Animals

Chorusing is usually defined as “acoustic signaling produced collectively by a group of individuals whose activity is clustered in both space and time. It would be nice to expand the definition to cover the possible purpose of chorusing behavior for animals.

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Communication signals threaten marine habitat

Back in the mid 1970’s Physical Oceanographer Walter Munk was evaluating the acoustical transmission characteristics of the ocean “sound channel” – an isothermal layer in the deep ocean that baleen whales use for long distance communication. His visionary work in…

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