Marine biologists have attached tiny transmitters to more than 320 sharks, including great whites.
Their progress up and down the Indian Ocean coast is monitored, and a computer automatically sends out shark alerts via short messages on Surf Life Saving Western Australia's Twitter feed.
Details about the size, species and approximate location of the fish are provided.
Western Australia is the world’s deadliest place for shark attacks. Surfer Chris Boyd was killed in November and was the sixth person to die from shark attack in the region during the past two years.
The new alert system went online just days after a controversial law was approved allowing fishermen to kill sharks larger than 5 feet in length if they are found in some areas used by surfers and swimmers.
Conservationists called the move a “knee-jerk reaction” and said the move is not based on science.
“It’s not going to have any positive benefit for beach goers and their safety and it’s certainly going to have a decimating effect on any great white sharks or other endangered shark species,” Ross Weir of the group Western Australians for Shark Conservation told Sky News.
Screen Shot: Twitter