Unfortunately marine animals are forced to share the word’s oceans with the navy. Each country with a navy uses sound as a means of detection, attack and defense and technologies have improved, so too has the efficiency and power of sonar and the high energy acoustic pulses used for enemy detection and counter weapon targeting.
Low Frequency Sonar ( LFAS), one of the most important underwater devices used by the US Navy.
The Navy’s mid-frequency sonar has been implicated in mass strandings of marine mammals in, among other places, the Bahamas, Greece, the Canary Islands, and Spain. In 2004, during war games near Hawaiʻi, the Navy’s sonar was implicated in a mass stranding of up to 200 melon-headed whales in Hanalei Bay. In 2003, the USS Shoup, operating in Washington’s Haro Strait, exposed a group of endangered Southern Resident killer whales to mid-frequency sonar, causing the animals to stop feeding and attempt to flee the sound. Even when sonar use does not result in these or other kinds of physical injury, it can disrupt feeding, migration, and breeding or drive whales from areas vital to their survival.