Fishermen compete for prizes based on the total weight of a given species of fish caught within a predetermined time. This sport evolved from local fishing contests into large competitive circuits, especially in North America. Competitors may be professional fishermen supported by commercial endorsements. Other competitions are based purely on length with mandatory catch and release. Either longest fish or total length is documented with a camera and a mandatory sticker or unique item, a practice used since it's hard to weigh a living fish accurately in a boat.
