Clean gear, not fishing.
A fish trap is a net held open by a number of arcs. The entrance is funnel-shaped and another couple of funnels leading into the inner room. An arm leads fish into the cone.
Trap is the most common fishing tackle for crayfish. It is a cage-like tool, usually made of metal.
Tina is a burlikande traps for lobster, crayfish and crabs that are often cylindrical or cube-shaped.