National Estuarine Research Reserves (NERRs) are protected areas in the United States that focus on the study and conservation of estuarine ecosystems. These reserves serve as living laboratories for research, education, and stewardship, helping to understand the complex interactions between land and water. They play a crucial role in preserving biodiversity and supporting local communities. NERRs are part of the National Oceanic and Atmospheric Administration (NOAA) and are designated to promote the sustainable use of coastal resources. Each reserve collaborates with local partners to conduct scientific research, monitor environmental changes, and provide educational programs for the public.