Fisheries chiefs spell out the end for 'foreign' tilapiaRight The Fisheries Department launches fishing boats with certified fishing nets used for catching Blackchin tilapia in Samut Sakhon on Friday. The Department of Fisheries has launched a campaign to eradicate Blackchin tilapia from Thai waterways and fishing spots. Minister of Agriculture and Cooperatives Captain Thamanat Prompow revealed on Friday that growing numbers of Blackchin tilapia are threatening local marine life and fish farms in several provinces. Blackchin tilapia are an alien species that threaten local marine life. (Photos: Nutthawat Wichieanbut)According to Mr Bancha, the fish breed in Samut Songkhram, Samut Prakan, Phetchaburi, Bangkok, Chanthaburi, Rayong, Ratchaburi, Prachuap Khiri Khan, Chumphon, Surat Thani, Nakhon Si Thammarat, Songkhla and Samut Sakhon.