Swordfish and other billfish are at risk from overfishing and as a target in recreation fishing. The indisciminate methods used to catch billfish, such as longline fishing also poses a threat to numerous other endangered species, including marine turtles, dolphins and sharks.
A significant number of swordfish are also caught by illegal driftnet fisheries in the Mediterranean. Labelled “walls of death”, driftnets are also indiscriminate, catching any animal that crosses their path. Both species of marlin face a specific threat to their future due to bycatch by tuna or swordfish fisheries.
There is also insufficient regulation to ensure that fisheries comply with rules.
News: Swordfish slip through the net.