Se denomina palangre a un tipo de aparejo utilizado en la pesca artesanal. El palangre de fondo reposa sobre el lecho marino. El palangre pelágico o de superficie, flota a la deriva en el mar. De manera análoga al espinel, en el cual se atan brazoladas a una línea madre, el palangre está formado por un elemento flotante con forma de toro, del cual se sostienen brazoladas (normalmente un hilo plástico) en cuyos extremos penden los anzuelos, con medidas que varían según las capturas (peces) buscadas. Existe en el mundo varios tipos de pesca con palangre. La Pesca de Palangre consiste en una línea única y principal ramificada con líneas de anzuelos conectadas a ella. Su armado depende del sitio donde el pez a atrapar se encuentre.

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Longline fishing is a commercial fishing technique. It uses a long line, called the main line, with baited hooks attached at intervals by means of branch lines called snoods (or gangions). A snood is a short length of line, attached to the main line using a clip or swivel, with the hook at the other end. Longlines are classified mainly by where they are placed in the water column. This can be at the surface or at the bottom. Lines can also be set by means of an anchor, or left to drift. Hundreds or even thousands of baited hooks can hang from a single line. Longliners commonly target swordfish, tuna, halibut, sablefish and many other species. In some unstable fisheries, such as the Patagonian toothfish, fishermen may be limited to as few as 25 hooks per line. In contrast, commercial longliners in certain robust fisheries of the Bering Sea and North Pacific generally run over 2,500 hand-baited hooks on a single series of connected lines many miles in length. Longlines can be set to hang near the surface (pelagic longline) to catch fish such as tuna and swordfish or along the sea floor (demersal longline) for groundfish such as halibut or cod. Longliners fishing for sablefish, also referred to as black cod, occasionally set gear on the sea floor at depths exceeding 1,100 metres (3,600 ft) using relatively simple equipment. Longlines with traps attached rather than hooks can be used for crab fishing in deep waters. Longline fishing is prone to the incidental catching and killing of seabirds, sea turtles, and sharks, but can be considerably more ecologically sustainable than some other commercially significant harvesting methods.

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