Fishing nets are an essential tool for fishermen, and there are several different types. A SEINE is a large fishing net that hangs vertically in the water, with weights along the bottom edge and floats along the top. A TRAWL is a large, cone-shaped net that is towed behind a boat. A TRAMMEL is a type of net made up of three layers, with the outer two layers having larger mesh than the inner layer. A FLUE is a type of net that is used to catch small fish, and it is usually made of fine mesh. Finally, a fyke is a type of trap net that is conical in shape and has a funnel-like entrance.