Maybe in lakes they used bait, but I think they were more effective in streams, where they could build a weir, around the outer edges of the trap, and funnel the fish into it. Also, I think that theirs was affixed to the weir, and had a lid that could be lifted up and the fish speared, as needed. But yours is pretty cool also, and has the advantage of being portable. If you have any streams, or rivers near you, you could try the weir, by staking out the trap, and building the weir on the sides to funnel the fish into the trap.
Very nice,
and I think you will be pleasantly surprised at how effective it is.
Great job on that .
Wayne