A trammel net is a type of fishing net designed to catch fish by entangling them. It consists of three layers: two outer walls made of larger mesh and a middle layer of smaller mesh. When fish swim into the net, they become trapped in the smaller mesh, making it difficult for them to escape. This design allows for the capture of various fish species while minimizing damage to the catch. Trammel nets are often used in both commercial and recreational fishing. They can be deployed in various water bodies, including rivers, lakes, and oceans. Fishermen must follow local regulations regarding the use of trammel nets to ensure sustainable fishing practices and protect aquatic ecosystems.