Fisheries Minister Troy Buswell helped release hundreds of juvenile mulloway into the Swan River as part of a program to boost numbers of the prized species - a favourite with recreational fishers.
Six hundred mulloway were released into the river as part of three-year project, and the 25cm eight-month-old fish have been tagged to help track their movements.
They were bred by the Challenge Institute of Technology under a Western Australian Fish Foundation project, supported by $280,000 in State Government funding.
This pilot mulloway stock enhancement project will restore the abundance of mulloway in waters near the Perth metropolitan region and is one of a range of initiatives funded by recreational fishing licence fees.