Lake Pohjalampi
 Lake Pohjalampi is a lake in eastern Finland. The lake has a surface area of 61 hectares and the mean and maximum depth are 3.2 meters and 5.3 meters respectively. The lake was used to study the effects of biomanipulation on a small mesotrophic lake. From 1993 to 1997 over 200 kilograms per hectare of fish mainly roach (Rutilus rutilus) and bream (Abramis brama) were caught and removed. This resulted in a reduction of nearly 80% of fish biomass.