More than 25,000 native Murray Cod have been released into Lake Ginninderra as part of the ACT Governments annual fish stocking program.

ACT Environment Minister Rebecca Vassarotti says the introduction of the Murray Cod will provide lasting environmental benefits by improving the ecology of Lake Ginninderra.

She says introducing a large native predator like Murray Cod, helps to balance the lakes ecosystems that would otherwise be populated by pests such as European Carp.

Ms Vassarotti went on to say Murray Cod do not naturally breed in our Urban lakes due to the still water environment, so regular stocking is required.