Researchers are now studying acoustic transducers in fish farming. Think of this of an array of electric energy waves or a virtual electrified fence. In one study in the EU the researches attempted to corral salmon using a barrier made up of an infrasonic field with an electrical field. The younger salmon responded to the electric fence almost exclusively. Most of the two-winter salmon did as well. A few of the older salmon did go thru the barrier eventually but quite reluctantly.

The research has many uses for instance preventing sea life from going thru intakes of power station cooling waters, protecting beach goers from shark attack and of course corralling fish in a virtual net or fish farming. Using this technology underwater unmanned vehicles could go out in packs and turn on the barriers and bring fish into shore without taking risks as fishermen often do. Additionally we can fine-tune the waves to prevent Dolphins and non-desired fish to escape without getting caught in real nets. It appears that by varying the amount of energy in the acoustic transducers we can in fact even use this to catch a certain size fish. For instance pull the fish in with acoustic transducers to a net of a certain size, the smaller fish swim thru and the larger fish are caught. Meanwhile the largest of all fish or other species you did not intend to catch swim thru the electrified barrier with only a little irritation. Virtual fish net systems are currently under study, but the applications are so great that they will soon be in use to protect endangered species, prevent wrongful catching of non-desired or protected sea life and more efficient fishing methods including fish farming in virtual grids.

Perhaps such systems can be used on land as well to protect borders, prevent hitting deer on the highway and keeping bears from our National Park picnic tables? Think on this.

"Lance Winslow" - Online Think Tank forum board. If you have innovative thoughts and unique perspectives, come think with Lance; www.WorldThinkTank.net/wttbbs/