The company Productos de Almadraba, located in Barbate, specialises in the production and marketing under the Gadira brand of wild bluefin tuna (Thunnus thynnus) caught in the almadrabas (traps) of Zahara de los Atunes, Tarifa and Conil, an artisanal, sustainable and age-old fishery. The tuna undergoes the process of ultra-freezing at -60ºC that preserves all its organoleptic characteristics. They also have a range of salted fish, canned and semi-preserved almadraba products.