BIG river perch can be incredibly finicky, so you need to present them a bait with a delicate rig.
This sensitive stick float rig is an ideal rig to tempt them, using half a lobworm on the hook with chopped worm and caster as feed.
The rig is made up using 4 lb main line, a six No.4 stick float, six No.4 shot spread evenly down the line, a 3 lb hook link and a wide gape hook such as a Kamasan B611 X Strong.
Likely areas to find perch in rivers include boat moorings, bridges, overhanging bankside vegetation and weirs.