Puckerel is a type of fish that belongs to the perch family. It is native to North America and is found in lakes, rivers, and streams. The term 'puckerel' is derived from the French word 'pouce', which means thumb. The three-letter acronym IMP stands for 'Inland Marine Puckerel'. This species of fish is known for its small size and its ability to survive in cold water. It is also a popular game fish and is often used as bait.