Trammel nets are a type of fishing gear designed to catch fish by entangling them. They consist of three layers: two outer layers of larger mesh and a middle layer of smaller mesh. When fish swim into the net, they become trapped between the layers, making it difficult for them to escape. This method is often used in both commercial and recreational fishing. These nets are typically set in shallow waters and can be used for various species, including flounder and catfish. Trammel nets are considered effective for catching fish while minimizing damage to the surrounding environment.