Why has the freshwater louse adapted to live in a pond?

The freshwater louse has adapted to live in a pond due to its ability to thrive in low-oxygen environments and its specialized feeding habits. Its flattened body and gills allow it to efficiently extract oxygen from the water, while its diet of detritus and algae helps it utilize the available resources in this habitat. Additionally, the louse's reproductive strategies ensure its population can sustain itself in the often-variable conditions of a pond ecosystem.