Salt Lakes

Reference work entry

Abstract

Salt lakes are widespread and are found under a range of conditions, including cold and hot temperatures. They are, however, mostly confined to semi-arid to arid regions where evaporation exceeds precipitation. They are generally permanent or temporary bodies of water with salinities greater than 3 g L−1 and lacking any recent connection to the marine environment. The salinity level used to demarcate them from freshwater lakes is somewhat arbitrary, given the large variation in salinity that can occur in many lakes. Many salt lakes can be dry seasonally or for longer periods and exhibit dry saline lake beds, and even hypersaline conditions with salt crusts across the surface. Salt lakes support biota that have physiological and biochemical mechanisms that enable them to tolerate high salt levels, and are highly sensitive to even small changes in the climate. The most conspicuous invertebrate animals are crustaceans, although a variety of other non-crustacean groups also occur. The vertebrates of saline lakes comprise mainly fish and birds. Many salt lakes have been degraded as a consequence of human activities especially from the construction of dams and diversion of surface inflows, increased salinization, and other catchment activities, such as mining, pollution, the introduction of 205 exotic species, and human-induced climate change.

Keywords

Saline lakes Ephemeral lakes Crustaceans Degradation 

References

  1. Finlayson CM, Chuikow YS, Prentice, RC, Fischer W, editors. Biogeography of the Lower Volga, Russia: an overview. IWRB Special Publication No 28, Slimbridge; 1993.Google Scholar
  2. Jellison R, Williams WD, Timms B, Alcocer J. Salt Lakes: values, threats and future. In: Polunin NVC, editor. Aquatic ecosystems: trends and global prospects. Cambridge: Cambridge University Press; 2008. p. 94–110.CrossRefGoogle Scholar
  3. MEA (Millennium Ecosystem Assessment). Ecosystems and human well-being: wetlands and water synthesis. Washington, DC: World Resources Institute; 2005.Google Scholar
  4. Williams WD. Management of inland saline waters. Guidelines of Lake Management No 6. Shiga: International Lake Environment Committee and United Nations Environment Programme; 1998.Google Scholar
  5. Williams WD. Environmental threats to salt lakes and the likely status of inland saline ecosystems in 2025. Environ Conserv. 2002;29:154–67.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  1. 1.Institute for Land, Water and SocietyCharles Sturt UniversityAlburyAustralia
  2. 2.UNESCO-IHEThe Institute for Water EducationDelftThe Netherlands

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