What is a lampreys niche?

Lampreys occupy a unique ecological niche as ectoparasites in aquatic ecosystems. They attach to fish and other hosts using their suction-cup mouths, feeding on their blood and bodily fluids. This feeding behavior can have significant effects on host populations and overall ecosystem dynamics. Additionally, as both larvae and adults, lampreys play roles in nutrient cycling and serve as prey for various predators.