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Noise Criteria One of the most tenacious challenges in establishing mitigation guidelines for marine animal noise exposure is the lack of a clear numeric threshold that regulators can unambiguously use. There is no “55 miles per hour” in marine bioacoustics because the physical environment of the ocean and the biological adaptations to habitat are extremely [...]
You have a unique opportunity right now to act to protect the sensitive marine environment along our Atlantic shoreline from damaging high-intensity seismic airgun surveys. These surveys involve sending out a continuous series of explosive impulses designed to penetrate deep into the ocean floor (and consequently far out into the ocean habitat). They have been [...]
Explore the relationship between natural and man-made noise in the arctic marine environment. Click on the icons to hear the noise. Allowing Industry in the Arctic Threatens Wildlife
The Arctic – once mostly unknown and considered inaccessible to all but the most intrepid explorers (and the resident indigenous people) is increasingly becoming familiar to the public at large. This is due in part to the changing dynamics of the Arctic caused by climate disruption – as more of the Arctic [...]
Why we do this... Comments to Draft Environmental Impact Statements (DEIS): 2015 - Atlantic Geophysical IHA Critique with Exhibits 2015 - NOAA Acoustic Guidelines Comments 2015 - Comments on 5 year offshore oil & gas leasing Navy/NMFS Court Case: Stipulated Settlement Agreement and Order Scientific Integrity Complaint: 2015 - BOEM Scientific Integrity Complaint 2015 - BOEM [...]
Deploying a hydrophone takes preparation and precision in the deep ocean. The instruments need to be designed for the specific conditions they will endure and the length of time they will be deployed. They also need to be set up for the particular types of data they’re intended to record. The arctic ocean is very [...]
The arctic ocean is very cold, subject to storms and ice. This makes it a difficult, uncomfortable and hazardous place to work. Often, to the outsider, it may seem empty of life but this misperception exists only because we are not natural inhabitants of this environment. We have to learn where and how to look, [...]
In the inhospitable arctic marine environment sound recordings can be one of the only ways to study wildlife and their habitat. In one week you can hear whales, seals, and passing boats, as well as many unidentified noises that remain a mystery. Hydrophones are set up and submerged to a desired depth to collect sounds, [...]
This is a collection of one week of continuous recordings in the Arctic ocean, 120 hours of video audiographs. To listen, choose a day in April 2011 and click on a time of day. Some days and times are much more active than others. Take some time and enjoy these mysterious soundscapes then learn more [...]
The Environmental Volunteers Center in the south San Francisco bay area provides its visitors with an introduction to wetlands ecosystems and conservation. They also offer multi-media presentations on many other environmental aspects of the Bay. OCR developed this presentation on sounds of the bay area to be included in their educational materials at the [...]
