there are some big trout in the aire. ive had them to 3 1/2 lbs myself, when i use to spin for them my mate had a cracker out at 5lbs, there definately in there. weve seen some clonking fish jump and chase minnows caught on float gear.
there not necessarily in the deep water either
i was talking to a guy at raygill who fishes for the pike there in winter. any deadbait he tried got picked up by monster stockies, the only way they could stop catching trout was by permission of the owner to use a trout of a pound or so.