{"id":1711,"date":"2017-06-03T00:10:40","date_gmt":"2017-06-03T00:10:40","guid":{"rendered":"http:\/\/www.ocean4future.org\/wp\/?p=1711"},"modified":"2026-04-16T09:15:57","modified_gmt":"2026-04-16T07:15:57","slug":"deadly-effects-of-sonar-on-mammals-u-s-navy-killing-thousands-of-whales-dolphins-with-sonar-weapons-testing-article-by-arjun-walia","status":"publish","type":"post","link":"https:\/\/www.ocean4future.org\/savetheocean\/archives\/1711","title":{"rendered":"Deadly effects of sonar on mammals"},"content":{"rendered":"<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">tempo di lettura: <\/span> <span class=\"rt-time\"> 3<\/span> <span class=\"rt-label rt-postfix\">minuti<\/span><\/span><p><span style=\"color: #ffffff;\">.<\/span><\/p>\n<p><a class=\"maxbutton-4 maxbutton maxbutton-livello-di-comprensione\" href=\"javascript:void(0);\"><span class='mb-text'>livello elementare<\/span><\/a><br \/>\n<span style=\"color: #ffffff;\">.<\/span><br \/>\n<strong><span style=\"color: #008000;\">ARGOMENTO: BIOLOGIA MARINA<\/span><\/strong><br \/>\n<strong><span style=\"color: #008000;\">PERIODO: XXI SECOLO<\/span><\/strong><br \/>\n<strong><span style=\"color: #008000;\">AREA: DIDATTICA<\/span><\/strong><br \/>\nparole chiave: medium &#8211; low frequencies sonar, US Navy experiment, underwater explosion<br \/>\n<span style=\"color: #ffffff;\">.<\/span><\/p>\n<p class=\"post-title\" style=\"text-align: justify;\"><strong><span style=\"color: #008000;\">The U.S Navy plan to conduct underwater testing of explosive weapons and sonar devices in the Atlantic and Pacific oceans, including the Gulf of Mexico. These events are set to commence and take place from 2014 through 2019. Depending on the proximity, underwater explosions may injured whales and dolphins, according to two environmental impact statements released by the military.<\/span><\/strong><\/p>\n<div class=\"post-single-body clearfix margin-t20\">\n<p style=\"text-align: justify;\"><span style=\"font-size: 18pt;\"><strong><span style=\"color: #008000;\">Killing sounds<\/span><\/strong><\/span><br \/>\nNaval operation might affect marine creatures. A lot of studies have been conducted by Navies to limit marine casualties on mammals and study the collateral phenomena due to sonar operations. \u00a0A CE journalist, Arjun Walia (1), stated \u00a0that these events have been occurring for a number of years, and are responsible for the death of large amounts of marine life. <strong><span style=\"color: #008000;\">Apparently the Navy is not denying these facts and have admitted that most of the deaths would come from detonation of explosives, sonar testing.<\/span><\/strong> According to US Navy computer models, this activity could kill hundreds of whales. According to Greenpeace, government estimates are calculated at 138,500 whales and dolphins will be injured or killed (2).\u00a0Besides, apparently the U.S. Department of the Interior is considering allowing geophysical companies that work for the oil and gas corporations to use these techniques in the Atlantic Ocean, from Delaware to Florida (2).<\/p>\n<p style=\"text-align: justify;\"><a href=\"https:\/\/www.ocean4future.org\/savetheocean\/wp-content\/uploads\/2016\/04\/mammal.jpg\"><img decoding=\"async\" class=\"wp-image-7764 alignleft\" src=\"https:\/\/www.ocean4future.org\/savetheocean\/wp-content\/uploads\/2016\/04\/mammal.jpg\" alt=\"mammal\" width=\"927\" height=\"778\" srcset=\"https:\/\/www.ocean4future.org\/savetheocean\/wp-content\/uploads\/2016\/04\/mammal.jpg 622w, https:\/\/www.ocean4future.org\/savetheocean\/wp-content\/uploads\/2016\/04\/mammal-300x252.jpg 300w\" sizes=\"(max-width: 927px) 100vw, 927px\" \/><\/a><\/p>\n<p style=\"text-align: justify;\"><strong><span style=\"color: #008000;\">The Navy is claiming that these tests are needed for homeland security.\u00a0<\/span><\/strong>According to National Resource Defense Council (NRDC) policy analyst \u00a0<strong><span style=\"color: #008000;\">Michael Jasny<\/span><\/strong>, a study published in the <strong><span style=\"color: #008000;\">Proceedings of the Royal Society<\/span><\/strong> shows that even mid-frequency noises disrupt feeding patterns in baleen whales and could negatively affect entire populations.<\/p>\n<p style=\"text-align: justify;\">The NRDC cites multiple mass strandings on beaches after sonar has been used, including 200 beached melon-headed whales in 2004 off the coast of Hawaii. (3).\u00a0Human technology is now drastically changing, damaging the delicate web of life and threatening life. Marine life is constantly dying, high intensity sonar alone used by the military can emit sounds as loud as a rocket blasting off. Offshore oil and gas exploration also make intense bursts. Imagine a day in your life disrupted by excruciating sound, sound so loud that it paralyzes you and your ability to function.<\/p>\n<table style=\"background-color: #fafa2d;\">\n<tbody>\n<tr>\n<td style=\"text-align: justify;\"><span style=\"font-size: 14pt;\"><strong><span style=\"color: #008000;\">Sonar, short for Sound Navigation and Ranging, is helpful for exploring and mapping the ocean because sound waves travel farther in the water than do radar and light waves. NOAA scientists primarily use sonar to develop nautical charts, locate underwater hazards to navigation, search for and map objects on the sea floor such as shipwrecks, and map the sea floor itself. video by NOOA<\/span><\/strong><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: justify;\"><span style=\"color: #008000;\"><strong><span style=\"font-size: 14pt;\">To be noted<\/span><\/strong>:<\/span> (from Wikipedia) &#8230;\u00a0<strong><em>\u00a0<span style=\"color: #008000;\">mitigation of Environmental impacts of the active sonar operation are required to be carried out by US law. Procedures for minimising the impact of sonar are developed in each case where there is significant impact. The impact of underwater sound can be reduced by limiting the <a style=\"color: #008000;\" title=\"Noise dosimeter\" href=\"http:\/\/en.wikipedia.org\/wiki\/Noise_dosimeter\">sound exposure<\/a> received by an animal.\u00a0The maximum sound exposure level recommended by Southall et al.\u00a0for <a class=\"mw-redirect\" style=\"color: #008000;\" title=\"Cetacean\" href=\"http:\/\/en.wikipedia.org\/wiki\/Cetacean\">cetaceans<\/a> is 215\u00a0dB re 1 \u03bcPa<sup>2<\/sup> s for hearing damage. Maximum <a class=\"mw-redirect\" style=\"color: #008000;\" title=\"Sound pressure level\" href=\"http:\/\/en.wikipedia.org\/wiki\/Sound_pressure_level\">sound pressure level<\/a>\u00a0for behavioural effects is dependent on context (Southall et al.).\u00a0A great discussion is concerning on this issue has to do with what method\u00a0of mitigation is sufficient.\u00a0Navies therefore \u00a0define their own mitigation requirements which may be different than the one used by civilians.<\/span><\/em><\/strong><\/p>\n<p style=\"text-align: justify;\"><strong><span style=\"color: #008000; font-size: 14pt;\">Examples of mitigation measures include (by wikipedia):<\/span><\/strong><\/p>\n<ol>\n<li><span style=\"color: #008000;\"><strong>not operating at night time<\/strong><\/span><\/li>\n<li><span style=\"color: #008000;\"><strong>not operating at specific areas of the ocean that are considered sensitive<\/strong><\/span><\/li>\n<li><span style=\"color: #008000;\"><strong>slow ramp-up of intensity of signal to give whales a warning<\/strong><\/span><\/li>\n<li><span style=\"color: #008000;\"><strong>air cover to search for mammals<\/strong><\/span><\/li>\n<li><span style=\"color: #008000;\"><strong>not operating when a mammal is known to be within a certain range<\/strong><\/span><\/li>\n<li><span style=\"color: #008000;\"><strong>on board observers from civilian groups<\/strong><\/span><\/li>\n<li><span style=\"color: #008000;\"><strong>using fish-finders to look for whales in the vicinity<\/strong><\/span><\/li>\n<li><span style=\"color: #008000;\"><strong>large margins of safety for exposure levels<\/strong><\/span><\/li>\n<li><span style=\"color: #008000;\"><strong>sonar not operating when dolphins are bow-riding<\/strong><\/span><\/li>\n<li><span style=\"color: #008000;\"><strong>maritime operations at less than full power<\/strong><\/span><\/li>\n<li><span style=\"color: #008000;\"><strong>paid teams of veterans to investigate strandings after sonar operation.<\/strong><\/span><\/li>\n<\/ol>\n<p><strong><span style=\"font-size: 14pt; color: #008000;\">However must be noted that High frequencies sonar are not dangerous for animals and not influence animal life.<\/span><\/strong><\/p>\n<p><span style=\"font-size: 18pt;\"><strong><span style=\"color: #008000;\">\u00a0What about mammal sounds?<\/span><\/strong><\/span><\/p>\n<table style=\"background-color: #dffa11;\">\n<tbody>\n<tr>\n<td style=\"text-align: justify;\"><span style=\"font-size: 14pt;\"><span style=\"font-size: 14pt;\"><strong><strong><strong><a class=\"yt-uix-servicelink \" href=\"http:\/\/www.ted.com\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" data-servicelink=\"CC8Q6TgYACITCJzDkaiz49MCFdhHFgodkEsF3yj4HQ\" data-url=\"http:\/\/www.ted.com\" data-target-new-window=\"True\">http:\/\/www.ted.com<\/a><\/strong><\/strong><\/strong><\/span><\/span>\u00a0<strong><span style=\"color: #008000; font-size: 14pt;\">Peter Tyack of Woods Hole talks about a hidden wonder of the sea: underwater sound. Onstage at Mission Blue, he explains the amazing ways whales use sound and song to communicate across hundreds of miles of ocean.<\/span><\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong><span style=\"color: #008000; font-size: 18pt;\"><br \/>\nReferences<\/span><\/strong><\/p>\n<p>(1) Arjun Walia is a freelance journalist \u00a0who joined the\u00a0CE team in 2010 for more mail to arjun@collective-evolution.com<\/p>\n<p>(2)\u00a0<a href=\"http:\/\/www.greenpeace.org\/usa\/en\/campaigns\/oceans\/Seismic-Testing-Sonar-Testing\/\">http:\/\/www.greenpeace.org\/usa\/en\/campaigns\/oceans\/Seismic-Testing-Sonar-Testing\/<\/a><\/p>\n<p>(3)\u00a0<a href=\"http:\/\/www.huffingtonpost.com\/brenda-peterson\/killing-with-sound_b_2744864.html\">http:\/\/www.huffingtonpost.com\/brenda-peterson\/killing-with-sound_b_2744864.html<\/a><\/p>\n<\/div>\n<p>&nbsp;<\/p>\n<p style=\"text-align: justify;\">Alcune delle immagini possono essere state prese dal web, citandone ove possibile gli autori e\/o le fonti. Se qualcuno desiderasse specificarne l\u2019autore o rimuoverle, pu\u00f2 scrivere a infoocean4future@gmail.com e provvederemo immediatamente alla correzione dell\u2019articolo<\/p>\n<p>&nbsp;<\/p>\n<p><a class=\"maxbutton-3 maxbutton maxbutton-pagina-principale\" target=\"_blank\" title=\"tooltip\" rel=\"nofollow noopener\" href=\"http:\/\/www.ocean4future.org\"><span class='mb-text'>PAGINA PRINCIPALE<\/span><\/a><br \/>\n<span style=\"color: #ffffff;\">.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">tempo di lettura: <\/span> <span class=\"rt-time\"> 3<\/span> <span class=\"rt-label rt-postfix\">minuti<\/span><\/span>. . ARGOMENTO: BIOLOGIA MARINA PERIODO: XXI SECOLO AREA: DIDATTICA parole chiave: medium &#8211; low frequencies sonar, US Navy experiment, underwater explosion . The U.S Navy plan to conduct underwater testing of explosive weapons and sonar devices in the Atlantic and Pacific oceans, including the Gulf of Mexico. These events are set to commence and [&hellip;]<\/p>\n","protected":false},"author":2398,"featured_media":81370,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[13],"tags":[572,830,570,829,571],"class_list":["post-1711","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-biologia-marina","tag-dolphins","tag-effect","tag-mammals","tag-sonar","tag-whales"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Deadly effects of sonar on mammals &#8226; OCEAN4FUTURE autore<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ocean4future.org\/savetheocean\/archives\/1711\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Deadly effects of sonar on mammals &#8226; OCEAN4FUTURE autore\" \/>\n<meta property=\"og:description\" content=\"tempo di lettura:  3 minuti. . ARGOMENTO: BIOLOGIA MARINA PERIODO: XXI SECOLO AREA: DIDATTICA parole chiave: medium &#8211; low frequencies sonar, US Navy experiment, underwater explosion . The U.S Navy plan to conduct underwater testing of explosive weapons and sonar devices in the Atlantic and Pacific oceans, including the Gulf of Mexico. 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The U.S Navy plan to conduct underwater testing of explosive weapons and sonar devices in the Atlantic and Pacific oceans, including the Gulf of Mexico. 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