Tag: whales

Whales and Climate Change

A few weeks back a number of us were down in Baja California visiting the friendly whales of San Ignacio Lagoon. For those not familiar with this mysterious and delightful phenomena, the gray whales of Baja seem to enjoy frolicking…

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…

Update on NOAA-NMFS Acoustical Guidelines

  On Monday we submitted our critique and suggestions for the NOAA-NMFS Acoustical Exposure Guidelines for “Level A takes.” These guidelines establish regulatory thresholds for just how much noise we humans can make before the damage to marine mammals requires…

A bit of game changing going on

In 1972 the Marine Mammal Protection Act (MMPA) was crafted as a response to scientific and public concern that certain marine mammals would become extinct unless they were protected by regulatory intervention. It was the first ecosystem based regulation –…

Flavors of noise

Noise impacts come in two flavors: Noise that is too loud, and noise that sounds awful. There is a degree of subjectivity under the “awful” category. For example; the awful din of your neighbor’s barking dog probably doesn’t meet their…

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…

Noise Awareness Day gets wet

Today, April 25 2013 is “International Noise Awareness Day.” Founded in 1996 by the Center for Hearing and Communication it was designed to promote awareness of the dangers of long-term exposure to noise – in humans. 1996 was really just…

Report from Kansas Acoustics Society meeting

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…

Press takes interest in historic ocean noise

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…