Unless otherwise specified by regulation, all waterways available to fishing are open 24 hours a day. A person may not own more fish than is legally permissible in one day at any time (Title 12, SS12602-2). However, if a person does catch more fish than they are allowed, they must either release them immediately or keep them no longer than 24 hours (unless prohibited by law). Night fishing is popular among anglers who use lighted rods and reels for catching fish that flee from shoreline lights during the day. Because most species avoid bright lights, night fishermen have better success catching fish because their activities are not detected until it's too late for the prey to escape. Fish feel pressure waves as they swim through water; these waves indicate where there are likely to be food sources nearby. When fish sense danger, they quickly change direction or speed up to evade it. This reaction makes night fishing possible by allowing you to sneak up on vulnerable prey. Fish become active at different times of day, so by learning when certain species are most likely to bite your hook, you can target your efforts toward the best opportunities. Fish are generally inactive during the day but will bite at night if given the chance. Knowing how and when to expect action helps you catch more fish.