World of warships submarines testing footage11/15/2023 ![]() and elsewhere abound, notably in recent years with more sonar testing going on than ever before. Other sad examples around the coast of the U.S. In January 2005, 34 whales of three different species became stranded and died along North Carolina’s Outer Banks during nearby offshore Navy sonar training. While little is known about any direct physiological effects of sonar waves on marine species, evidence shows that whales will swim hundreds of miles, rapidly change their depth (sometime leading to bleeding from the eyes and ears), and even beach themselves to get away from the sounds of sonar. These rolling walls of noise are no doubt too much for some marine wildlife. These sound waves can travel for hundreds of miles under water, and can retain an intensity of 140 decibels as far as 300 miles from their source. Navy to detect enemy submarines-generate slow-rolling sound waves topping out at around 235 decibels the world’s loudest rock bands top out at only 130. Sonar systems-first developed by the U.S. Unfortunately for many whales, dolphins and other marine life, the use of underwater sonar (short for sound navigation and ranging) can lead to injury and even death. Dear EarthTalk: Is it true that military sonar exercises actually kill marine wildlife? ![]()
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |