Program collects data of fresh water phytoplankton, phytobenthos, aquatic invertebrates, fish and plants. It intends to reach sufficient data to assess biological quality of water bodies and monitor their change in time. The program is designed to answer the needs of ecological classification determined by Water Framework Directive. The program is managed by Finnish Environment Institute (SYKE), Regional centres for economic development, transport and the environment (ELY-centre) and Natural Resource Institute Finland. Observations are done in the monitoring of water quality network and in specially designed network for anthropogenically eutrophicated lakes and rivers. Monitoring frequency varies between the locations and measured elements.