QUEENSLAND has the highest diversity of freshwater fish in Australia.
Unfortunately this diversity is threatened by the presence of pest fish (sometimes referred to as non-indigenous), which have successfully established in some of our waterways.
Some pest fish pose such a threat to Queensland waters that they have been declared noxious in fisheries legislation.
These fish include carp, climbing perch, gambusia, oriental weatherloach and tilapia.
Pest fish are fish species that are not native to an area and have potential negative social, economic or environmental impacts.
Most pest fish established in Queensland waters have been released by irresponsible members of the public.
A noxious fish is one that has been declared as harmful by state statute law because they are, or may become, a serious pest to native aquatic communities.
Noxious fish have characteristics that are detrimental to other fish, aquatic habitats or humans. They must not be used to stock dams or keep in aquariums.
Penalties of up to $220,000 apply.
Some non-indigenous fish species can be kept in privately owned aquariums and ponds provided they cannot escape into any other waterways.