👍 @TraRay That sounds great!
Have you tried fish traps? Here, I would use something like willow to build them.
When I wanted to check the population of #crayfish in our #pond, I built a makeshift #FishTrap of two 5l water bottles.
Initially, my wife laughed at me - until we checked next morning.
I baited with some meat and it worked like a charm.

#LostLandscapes. A C-shaped #medieval #fishtrap of the beach at Traeth Lligwy on Anglesey in N Wales. Local fishermen built this 140m long curving stone wall across the beach, its end pointing into the beach about 100m from the line of hide tide, s that fish would become trapped in it on the ebbing tide. There are similar traps all around the coasts of the British Isles, signals to past labour & livelihoods. 1/2