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COMMENTARY is the opinion of the author and does not necessarily reflect ACS policy or the opinion of the ACS National Board of Directors.
I had the opportunity to attend the U.S. Navy's Open House on the Low-Frequency Active Sonar (LFAS) system at Cabrillo Marine Aquarium in August. The purpose of the event was to show the public the underwater technology the Navy plans to use to detect enemy submarines that could threaten our national security. The irony was, the public was barely invited to attend. Aside from one posting on MARMAM (the Marine Mammals Research & Conservation Discussion group on the Internet) three to four days before the open house, there was no other public notice of which I am aware.
The press wasn't invited at all but was instead provided a "media event" several hours before the start of the open house. Perhaps to avoid all those rowdy environmentalists who might show up? There was more security for this event than I've ever seen at Cabrillo Marine Aquarium. It must have been a little boring for the Park Rangers. The "teeming throng" of 40 to 50 people throughout the evening was only interested in quietly and seriously asking technical questions of Dr. Chris Clark, the scientist in charge of the Scientific Research Program associated with the LFAS project.
The open house was a study in casual tension. A computer station was set up in the back of the auditorium so people could log on to see the Navy's website. A 15-minute video of mostly Discovery Channel images of marine mammals played continuously up front on the main screen where the lights were dimmed for the two to three people watching it. There were full-color posters showing the Navy's Surveillance Towed Array Sensor System (SURTASS) ship that tows the huge speaker array through the water. Dr. Clark was the focus of attention and had people surrounding him throughout the open house. Some attendees were frankly curious, while others asked pointed questions about the physics of underwater sound and the relevance of deploying such an extremely loud, potentially lethal system into an environment already suffering from "acoustic smog". There was a Navy officer literally less than six inches from Dr. Clark at all times. One officer was overheard saying to another, "Where did all these people come from?"
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The open house offered nothing new for those of us who have been involved with LFAS project since the 1997-98 experiments on blue, fin, and gray whales in California and on humpback whales in Hawaiian waters. In fact, the analysis of that research has not been completed and probably won't be "for several years", according to Dr. Clark. Yet the 400-page Draft Overseas Environmental Impact Statement (OEIS) was released on July 30 and the public, including the international scientific community, has until October 28, 1999 to make comments.
A public hearing on LFAS took place in San Diego on October 11, 1999 and there are other open houses and public hearings scheduled throughout the country. For a continually updated schedule of these meetings, visit the Navy's LFAS website at http://eisteam.home.mindspring.com. If you have questions or comments, contact Joe Johnson, the Navy's LFAS Program Manager, at (703) 477-8743; e-mail eisteam@mindspring.com.
If you don't want to plow through the Draft OEIS, request or download a copy of the 21-page Executive Summary at the above web address. If you'd like to learn more about underwater acoustics there's an excellent book entitled Marine Mammals and Noise (1998, Academic Press), whose principal author is Dr. John Richardson. In addition, an article by Dr. Peter Tyack about the Hawaiian phase of the LFAS tests appears in ACS' journal Whalewatcher (Vol. 31, No. 2, Fall/Winter 1998).
ACS is interested in this issue because deployment of a permanent, extremely loud (215-decibel), low-frequency (less than 1000 hertz) sound source could have lethal consequences for marine mammals, if not the entire ecosystem. The very lack of scientific data regarding this type of sound, and particularly its long-term effects, should preclude its use -- by anyone -- until more is known. This will take time. Something which the Department of Defense (Navy) and the Department of Commerce (NMFS/NOAA) aren't interested in granting. I wonder why?

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