Gillnetters are fishing vessels that use a type of net called a gillnet to catch fish. This net is designed to entangle fish by their gills as they swim through it. Gillnetters can vary in size, from small boats to larger commercial vessels, and are often used to target species like salmon, herring, and cod. The gillnet is typically set in the water for a period of time, allowing fish to become caught. Once the net is retrieved, the catch is sorted, and any unwanted species or sizes are often released back into the water. This method of fishing is common in both commercial and artisanal fisheries.