Yes, there are alligators in Lake Tarpon. Alligators are a common sight in many freshwater bodies in Florida, including Lake Tarpon. It is important to be cautious and aware of your surroundings when fishing in areas where alligators are present. If you encounter an alligator while fishing in Lake Tarpon, it's best to slowly and calmly move away from the area and not feed or attempt to touch the alligator. Additionally, it's important to always follow local fishing and wildlife regulations when fishing in areas with alligators.