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Pollution : Sound Pollution
- Fish Farmers' Noise Blasts Whales from B.C. Waters
-- Killer whales have fled the waters between Canada's west coast and northern Vancouver Island to avoid loud underwater sounds used by salmon farmers to keep seals away from their fish pens, a marine mammal research team has found.
(Added: 20-May-2003 Hits: 376 Rating: 0 Votes: 0) Rate It
- Low Frequency Active Sonar & Marine Mammals
-- The Navy has been testing the Low Frequency Active (LFA) Sonar system in secrecy for years -- in violation of federal and state environmental laws, according the Natural Resources Defense Council (NRDC). In 1995, NRDC brought the sonar tests to light and demanded that the Navy comply with the law and disclose how the sonar would affect marine mammals, sea turtles and other ocean species.
(Added: 16-Oct-2003 Hits: 410 Rating: 0 Votes: 0) Rate It
- Navy Admits Sonar Killed Whales
-- (Jan. 2002) "In a landmark study, the U.S. Navy has concluded that it killed at least six whales in an accident involving common ship-based sonars. The finding by the Navy and the U.S. National Marine Fisheries Service (NMFS) may complicate Navy plans to field a powerful new sonar system designed to detect enemy submarines at long distances."
(Added: 27-May-2003 Hits: 631 Rating: 4.00 Votes: 2) Rate It
- Noise-pollution-free reserves for sea mammals
-- (Possible affirmative case idea)
"In these reserves, mammals such as whales and dolphins would be protected from the sounds of supertankers, oil exploration and military sonar equipment which are forcing these sea creatures to change their migration routes and to abandon their breeding grounds."
(Added: 25-May-2003 Hits: 459 Rating: 5.25 Votes: 4) Rate It
- Ocean Noise Pollution: A Threat to Whales
-- A study showed that ambient noise in the oceans rose 10 decibels between 1950 and 1975 - a 900% increase in 25 years! The "Silent World" that Jacques Cousteau described years ago is no longer silent. Marine mammals depend on sound to communicate, navigate and to search for food in our oceans. When we increase the ambient noise in the oceans, we decrease their ability to survive.
(Added: 25-May-2003 Hits: 501 Rating: 4.33 Votes: 6) Rate It
- Ocean Racket
-- Boat propellers, deep-sea drills, and sonar--sound waves that ships bounce off ocean floors to map them--often blast sounds as loud as 170 decibels. That's 10,000 times louder than the most deafening rock concert. And that's set off alarm bells for scientists concerned about undersea life. They worry that exploding ocean noise may confuse and even kill animals that use sound to find food and mates.
(Added: 25-May-2003 Hits: 449 Rating: 0 Votes: 0) Rate It
- Pingers may frighten fish away as well
-- In theory, pingers stop dolphins from getting caught in nets. In practice they may not work; at least not as people imagine.
(Added: 15-May-2003 Hits: 246 Rating: 8.33 Votes: 3) Rate It
- Scientists criticize lack of knowledge of undersea noise pollution
-- Understanding of the extent and effects of human-induced noise pollution in the oceans is inadequate, particularly with regard to strandings by dolphins and whales, which are often blamed on naval sonar, according to the National Academies.
(Added: 6-Jun-2003 Hits: 321 Rating: 0 Votes: 0) Rate It
- They're playing our song — too loudly
-- "As any diver knows, the sea is a noisy place, full of animals with noisy names like grunts and croakers. Now a report by the Natural Resources Defense Council suggests that the viability of this universe is at risk, and the culprit is a noisy new arrival: humanity. The report, "Sounding the Depths," documents the rise of human-caused undersea noise pollution from an occasional annoyance to a ubiquitous assault on oceanic health."
(Added: 27-May-2003 Hits: 284 Rating: 0 Votes: 0) Rate It
- Toxic Tunes
-- Humans are dumping a large volume of loud noise into the oceans every day. Is this noise harmful (or even toxic) to marine life?
(Added: 25-May-2003 Hits: 518 Rating: 0 Votes: 0) Rate It
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