| Loughborough innovation prevents fishing net deaths of dolphins and porpoises (603 words) |
 | These signals act as a warning, repelling the mammals from fishing nets, and at close range can actively mask echoes from the fish they may be targeting with their sonar. |
| AQUAmark is not only effective as a porpoise deterrent but offers a much longer operating life and includes management features which are not possible with analogue technology traditionally used in pingers introduced in the USA.” |
| One of AQUAmark’s biggest successes has been in Denmark where after very thorough testing new regulations were introduced two years ago that required this pinger to be used in the North Sea wreck net fishery for cod. |
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