Tilapia is a biosecurity nightmare in Australia but popular on many menus overseas. Some in the fishing industry think if you catch the pest fish in Queensland you should be able to eat it. Tilapia is a biosecurity nightmare in Australia but popular on many menus overseas. Some in the fishing industry think if you catch the pest fish in Queensland you should be able to eat it. Pests, Fishing and Aquaculture Industry, Food and Cooking, Fish, Pests, Diseases and Control Methods Latest business news