Blackchin Tilapia Concerns at Lam Pao Dam

On September 21, 2026, the Lam Pao Dam in Kalasin province closed its spillway gates to begin water storage for the upcoming dry season. This seasonal event drew many local residents to the area to fish using nets and traps. While the catch primarily consisted of native species such as tilapia, silver barb, and various river fish, the activity has been underscored by ongoing concerns regarding the invasive blackchin tilapia.

Local fishermen and authorities are actively searching for the invasive species, fearing that they may have spread to the dam's reservoir. To date, 111 blackchin tilapia have been reported and removed from the area, with 10 additional specimens recently identified and reported to the authorities. Residents expressed concern that the fish may have proliferated during the restricted fishing period known as the 'red water season.'

For residents and visitors, this situation highlights the ongoing environmental efforts to manage invasive species in Thailand's waterways. While the dam area remains a site for local fishing activity, the presence of these invasive fish remains a point of ecological concern. It is not yet confirmed if the invasive population has established a significant foothold within the main reservoir, or if the current containment efforts are sufficient to prevent further spread. Authorities continue to monitor the situation closely.