tilapia; A threat to the biological diversity of Iran's wetlands "Iran": Shahid Bahshti University conducted a comprehensive risk assessment study and clearly stated that the cultivation of this fish throughout Iran is "high risk" and under no circumstances should a license be issued for its propagation and cultivation. Almost 90% of the volume of fish that the local fishermen bring and catch are tilapia fish! This invasive species has officially brought the native fish population of the precious Horul Goat wetland to the brink of destruction. The licenses of the previous four districts were incorrect and unnecessary and should be collected. Read the full text here.