Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. The term excludes seawater and brackish water, …

Apr 3, 2025 · Freshwater ecosystems naturally share resources between habitats. The ecosystems in rivers and streams, for example, bring salts and nutrients from the mountains to lakes, ponds, and …

Educating and inspiring people to value, conserve and protect water resources.

Jun 8, 2018 · Freshwater on the land surface is a vital part of the water cycle for everyday human life. On the landscape, freshwater is stored in rivers, lakes, reservoirs, creeks, and streams. Most of the …

Freshwater habitats—such as lakes, rivers, streams, wetlands, and aquifers—house an incredible proportion of the world’s biodiversity: more than 10% of all known animals and about 50% of all …

Jun 16, 2025 · What is a Freshwater Ecosystem? A freshwater ecosystem is a community of living organisms – plants, animals, and microorganisms – interacting with each other and their non-living …

Other articles where freshwater is discussed: aquarium: Maintenance problems: The source of fresh water is usually water supplies from which chlorine and other additives have been removed, either by …

Freshwater is defined as having a low salt concentration — usually less than 1%. Plants and animals in freshwater regions are adjusted to the low salt content and would not be able to survive in areas of …

Sep 16, 2025 · The protection, management and restoration of freshwater ecosystems and water resources is fundamental to combating the triple planetary crises of biodiversity loss, pollution and …

Jul 29, 2025 · Freshwater From sustaining agriculture and energy to shaping landscapes and communities, freshwater is essential. NASA’s Earth science data helps the nation manage this vital …