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Tilapia - Black Mangrove Cichlid

Tilapia mariae

In Australia usually called just "tilapia", these fish were originally introduced as tropical aquarium fish.  Illegally released into the Hazelwood power station pondage they have been able to establish a self sustaining population in the heated waters of the pondage.  Due to the lower water temperatures in other Victorian waters, it is considered unlikely that tilapia will establish populations outside the pondage.  However, tilapia pose a substantial threat in the warmer waters of Northern Australia.