Andinoacara rivulatus (Perciformes: Pichlidae), an introduced exotic fish in the upstream of Brantas River, Indonesia.
The presence of non-native fish, especially types of predators was a real threat to freshwater ecosystems in Indonesia, peculiarly for native fish which were unable to compete. The entry of invasive fish had the potential as a disease vector, uncontrolled hybridization, and damaging food webs that would have a systemic impact on the ecosystem. This study discussed the first record of the existence of Green terror, Andinoacara rivulatus from South America in the freshwater waters of East Java, Indonesia, precisely in the upstream of Brantas River. A description of morphological characters of a specimen is provided.