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…
In response to our most recent newsletter on shark hearing, bioacoustics elder and fish hearing expert Art Popper contacted us to provide a more accurate pedigree on the understanding of shark hearing. While there was observed evidence of shark hearing…
While catastrophic whale strandings first brought the public’s attention to the ocean noise impacts, a greater noise concern is the impact of the ever increasing “acoustic smog” from human noise sources. This problem is called “masking” – what happens when…
The vocalizations of “ice seals”, a bearded seal in this case, use complex tones and wide ranges of frequencies. Yet some of the simpler sounds created by ships passing through their environment may have the effect of masking their communications…
I’ve just returned from a semi-annual Acoustics Society meeting in Kansas City. These events bring together many scientists, researchers, engineers, and academics who are plying the broad arena of acoustics.. The field of acoustics is a potpourri of disciplines that…
This week I delivered a paper on the historic noise levels in the ocean prior to industrialized whaling. It turns out that the ocean was pretty noisy back in 1800, but the noise was all biological − with a preponderance…
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…
A New York Times article is making the rounds about how a captive false killer whale has demonstrated a mechanism for attenuating potentially damaging noises. Paul Nachtigall, the principal investigator of the study has conditioned the subject to de-sensitize its…
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…
Ocean Champion J. Nichols has coordinated an event on June 1 and 2 at the California Academy of Science that explores neuroscience and the ocean. While the reception on June 1 and the daytime conference on June 2 are both…