Nile tilapia threaten mullet habitat in Hilo

Nile tilapia are threatening mullet habitat in Hilo. (Courtesy photo/DLNR)

Nile tilapia are a problem in Wailoa River State Park. Courtesy DLNR
A school of Nile tilapia in Hilo. Courtesy DLNR

HILO — State officials are trying to decide what to do about an “invasion” of tilapia in Hilo’s Wailoa River system.