Seismic blasting used in oil exploration can reach 250 decibels and be heard for miles. It can cause hearing loss, disorientation and disturb essential marine mammal behaviors such as feeding and breeding. Just over 300 Cook Inlet beluga whales are left after four more washed up dead in Cook Inlet in the past two weeks.
Water is much denser than air, so its molecules are packed tighter together. This means that sound (which relies on molecules vibrating and pushing against one another) propagates muchfurther and faster under water than in air.
A new study has identified some of acoustic sanctuaries off the coast of British Columbia in the hope that they may be protected. Researchers emphasize that these opportunity sites can be protected with little change to current shipping patterns, which… Read More ›
Editor’s Note: The debate about the safety of seismic airgun blasts for research purposes along America’s coastlines, has moved from Central California to the Atlantic coast, ranging from Delaware to Florida. The following assesment is from Oceana: Overview The U.S…. Read More ›
From International Fund for Animal Welfare Underwater noise pollution from ships poses a serious threat to whales and dolphins. So it’s great that the International Maritime Organization (IMO) is now developing guidelines to reduce the levels of underwater noise created… Read More ›