1.   Local populations of some dolphins have been severely affected by the use of shark nets to protect bathers.

2.   The company is working to develop a similar shark repellent for boats and a larger device that would protect beaches and replace shark nets.

3.   Other versions under consideration would be deployed just offshore in lieu of shark nets to protect beachgoers.

4.   Hundreds of rare and endangered marine animals have died in shark nets that line beaches to protect swimmers in Australia, according to a report released Thursday.

5.   Shark nets are positioned underwater off Australian beaches as protection against shark attacks.

6.   Shark nets are positioned underwater off Australian beaches as protection against sharks.

7.   They donned deep-sea diving equipment but kept well within the shark nets in the wake of a suspected shark sighting last month.

8.   Authorities set up shark nets at three beaches in the area last year.

9.   Authorities set up shark nets at three beaches in the Sai Kung area last year.

10.   Many beaches in South Africa are protected by shark nets, but not those around East London, which does not have a history of shark attacks.