Law
Administrative Court Orders Action Against Blackchin Tilapia Infestation
The Central Administrative Court has ruled that the Department of Fisheries must develop a concrete plan to eradicate the invasive blackchin tilapia and declare Samut Songkhram a disaster zone.
On September 8, 2026, the Central Administrative Court in Bangkok issued a ruling regarding a lawsuit filed by 54 individuals against the Department of Fisheries and 18 other state entities. The plaintiffs alleged that these agencies neglected their legal duties by failing to control the importation of blackchin tilapia, which subsequently led to a widespread ecological infestation across several Thai provinces.
The court ordered the Department of Fisheries to formulate and implement a concrete plan to suppress and manage the invasive species. Furthermore, the court mandated that Samut Songkhram province be declared a disaster zone, a measure intended to facilitate the allocation of funds for victim compensation and to pursue legal action against those responsible for the initial introduction of the fish.
For residents and travelers, this ruling highlights ongoing efforts to address the environmental and economic damage caused by the blackchin tilapia, which has impacted local fisheries and livelihoods. While the court has issued this directive, the legal process is not yet finalized. The case remains subject to potential appeals, meaning the timeline for the implementation of these measures and the official declaration of the disaster zone may still be subject to change. Stakeholders are currently awaiting further developments as the Department of Fisheries responds to the court's mandate.