As the most powerful line of commercialization for fish species to the US Market, longline fishing is a commercial fishing technique that is considered to be more ecologically sustainable than many other methods. This strategy utilizes a long fishing line called the main line, equipped with baited hooks called “snoods”. Numerous hooks can hang from a single line to make the process more efficient and effective. Long line fishing methods are most commonly used to capture fish such as swordfish, tuna, halibut, and many other species.
Longlines can be set to hang near the surface (pelagic longline) to capture fish that live along the sea floor (demersal longline) and to capture groundfish such as halibut.