Fish snare is a term used to describe various methods of catching fish. The most common methods are SEINE, WEIR, and trammelnet. SEINE is a fishing net that hangs vertically in the water with weights along the bottom edge and floats along the top. A WEIR is a fence-like structure placed in a river or stream to trap fish. Trammelnet is a type of fishing net made up of three layers of netting with different mesh sizes, allowing for the capture of different sizes of fish.