A fishnet is a type of fine mesh net that is commonly used for catching fish. It typically consists of a series of connected loops with small holes, allowing water to pass through while trapping any fish that come into contact with it. Fishnets can be made from various materials such as nylon or polyester and are often designed to be flexible and strong enough to hold large amounts of water. They are commonly used in both freshwater and saltwater environments by commercial fishers, recreational anglers, and even as part of larger marine ecosystem management strategies.