Freshwater Biological Indicators

Freshwater biological indicators are living organisms, such as fish, insects, and plants, used to assess the health of freshwater ecosystems like lakes and rivers. They reveal water quality by reflecting the presence or absence of certain species that thrive under specific conditions. For example, some insects only survive in clean water, while others tolerate pollution. Monitoring these organisms helps scientists determine pollution levels, oxygen content, and overall ecosystem health, guiding conservation efforts and water management to ensure safe, healthy aquatic environments.