Murray cod up to a metre long have been introduced into Mount Gambier's Valley Lake in SA's south-east. Recfish SA says the release makes the lake an instant "trophy fishery", helping local tourism.

A pest eradication project at a lake north of Auckland is cleaning up water that has not been the same since a fanatical ...

Urgent action was needed to prevent their complete extinction in the region. In Lake Rototoa, multiple pest fish species have been interfering with the complex, multi-step kākahi breeding cycle.