The European perch (Perca fluviatilis) is a common freshwater fish found throughout the UK in lakes, rivers, and ponds. Known for its striking greenish body with vertical black stripes and vibrant red or orange fins, it is is a popular species among anglers and plays an important role in aquatic ecosystems as both predator and prey. European perch are adaptable and thrive in a variety of freshwater habitats, but their populations can be impacted by habitat degradation and competition with invasive species.