Freshwater

(noun)

Fresh water is naturally occurring water on the Earth's surface in ice sheets, ice caps, glaciers, bogs, ponds, lakes, rivers and streams, and underground as groundwater in aquifers and underground streams. Fresh water is generally characterized by having low concentrations of dissolved salts and other total dissolved solids.

Related Terms

Examples of Freshwater in the following topics:

  • Freshwater Environments

    • Scientifically, freshwater habitats are divided into lentic systems, which are the stillwaters including ponds, lakes, swamps and mires; lotic systems, which are running water; and groundwater which flows in rocks and aquifers.
    • Some protists accomplish this using contractile vacuoles, while freshwater fish excrete excess water via the kidney.

  • Bacteroides and Flavobacterium

    • The flavbacterium are characterized by their ability to cause disease in freshwater fish such as salmon and rainbow trouts.
    • Describe the role of Bacteroides in the normal flora of the human gastrointestinal tract and the role of Flavobacterium in causing disease in freshwater fish

  • Wetland Soils

    • The water found in wetlands can be saltwater, freshwater , or brackish .
    • Nutrient cycling in lakes and freshwater wetlands depends heavily on redox conditions.

  • Actinobacteria (High G + C Gram-Positive Bacteria)

    • Actinobacteria include some of the most common soil life, freshwater life, and marine life, playing an important role in decomposition of organic materials, such as cellulose and chitin, and thereby playing a vital part in organic matter turnover and carbon cycle.

  • Overview of Gram-Positive Bacteria and Actinobacteria

    • Actinobacteria include some of the most common soil life, freshwater life, and marine life, playing an important role in the decomposition of organic materials, such as cellulose and chitin; thereby playing a vital part in organic matter turnover and carbon cycle.

  • Prochlorophytes

    • In addition to Prochlorophyta, other phytoplankton that lack Phycobilin pigments were later found in freshwater lakes in the Netherlands, by Tineke Burger-Wiersma.

  • Edible Algae

    • They are usually of marine origin since freshwater algae are often poisonous.

  • Swimmer's Itch

    • The life cycle of these parasites is characterized by their use of both freshwater snails and vertebrates as hosts.

  • Schistosomiasis

    • These infect freshwater snails by penetrating their skin.

  • Legionellosis

    • Common sources of Legionella include swimming pools, cooling towers, hot-water systems such as spas, fountains, freshwater ponds and creeks.