Main         Home  |  CO's Welcome  |  Sea Cadet Corps  |  Our Unit  |  Junior Section  |  Things we get up to
Menu :     Ship's Company  |  Parents  |  Adult recruitment  |  Find Us  |  FAQ  |  British Navies  |  Site map


TS Royalist
The Sea Cadets
Woking & District SCC canoeistSCC teamSCC parade

Bullet pointBullet pointBullet point   US Navy sonar silenced over whale fears   Bullet pointBullet pointBullet point

Adapted from an article on BBC News Online                            7th August 2007

 

Bluegill sunfish and artificial fin

US navy warship with an orca (otherwise
called killer whale) in the foreground.


The US Navy has been ordered not to use mid-frequency sonar equipment during training exercises off the coast of California until the end of 2009.

A federal judge ruled in favour of campaigners who argued that the devices harmed marine mammals in the area. They said noise pollution from sonar disorientated whales, causing them to become stranded on beaches.

A navy spokesman said they would appeal because the injunction jeopardised the nation's safety and security.

The legal action was brought by a coalition of animal welfare groups, led by the Natural Resources Defense Council (NRDC).

 

Bluegill sunfish and artificial fin

When noise reaches a certain level, orcas
make longer calls.


A previous BBC News Online article (April 2004) discussed how killer whales living off the west coast of the US are extending the length of their calls to each other to be heard above the din of heavy boat traffic (nothing to do with sonar in this case).

The findings came from an analysis of killer whale, or orca, calls by British and US researchers which has been published in the journal Nature.

     SIMPLY THE BEST - THAT'S THE SEA CADETS !