Yes, folding knives can be used for fishing activities. Folding knives are versatile tools that can be handy for various tasks related to fishing, such as cutting fishing lines, cleaning fish, or opening packages of bait. Many folding knives have blades specifically designed for these purposes, such as serrated edges for cutting through tough materials or gut hooks for efficiently cleaning fish.When choosing a folding knife for fishing, there are a few factors to consider. Its beneficial to select a knife with a corrosion-resistant blade material like stainless steel to withstand exposure to water and potentially saltwater. Its also important to choose a knife with a locking mechanism to ensure the blade stays securely in place during use.Additionally, some folding knives designed for fishing may incorporate additional features like fish scalers, bottle openers, or line cutters to provide added convenience. Its always a good idea to familiarize yourself with local fishing regulations and guidelines to ensure compliance with any rules regarding knife use while fishing.