Several fishermen in Segari, Perak are concerned about the impact brought by aquaculture activities in the area.<br /><br />They said freshwater prawn farms had polluted the water of a river, causing them to have low yield of catches.<br /><br />WATCH MORE: https://thestartv.com/c/news<br />SUBSCRIBE: https://cutt.ly/TheStar<br />LIKE: https://fb.com/TheStarOnline