
The use of deep water sonar is likely causing the mass dolphin deaths along the Peruvian and US Gulf Coasts.
After speculating too long over what caused 3000 dead dolphins to wash up on Peru’s coast, researchers at a marine animal organization in Peru (ORCA) finally concluded that seismic surveying for petroleum is to blame. They said the dolphins suffered violent deaths due to decompression hemorrhaging caused by the acoustic booms.
The US has responded by curbing exploration during the calving season, but Natural Resource Defense Council’s Michael Jasny says that’s not enough. What dolphins face, he says, is like “dynamite going off in your neighborhood for days, months on end.”
It was first thought that pollution from the 2010 BP Gulf oil spill caused the killings, but anyway you look at it, offshore oil drilling is at root of the problem.
There’s no excuse for this mass slaughter. Demand tighter regulations on sonar to stop killing dolphins!
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I am intereted in developping the new underwater communication modems, working at the frequency range out of the range, used by dolphins and other sea mammals. If you have a statistics of sonar induced death of dolphins, please send to my e-mail
sea_vain@yahoo.com, the goal of our project is to develope the communication and sonar devices that will not impact on the underwater ecology. Thank you in advance.