A fish survey I conducted in the North Pine River last weekend was productive, with seven different species being found in a quiet stretch of water alongside Mungarra Reserve. Common silverbiddy, Lawnton. Most numerous were estuary glassfish (Ambassis marianus) , a native species which studies suggest is just as good at controlling mosquito larvae as the introduced eastern mosquitofish (Gambusia holbrooki), also present. Another mosquito predator occurring in smaller numbers was the Pacific blue-eye (Pseudomugil signifer) ; between these fish species and recent aerial spraying, not a single mosquito bothered me all afternoon.