Water quality and aquatic ecosystems of irrigation runoff lakes in Khorezm, Uzbekistan

Laurel Saito, Dilorom Fayzieva, Sudeep Chandra, Michael Rosen, Bakhriddin Nishonov, John Lamers, Julian Scott, Margaret Shanafield

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Human activities along the Amu Darya River have damaged aquatic ecosystems of the Aral Sea Basin. The Khorezm province in northwest Uzbekistan is a productive agricultural area within the basin. The landscape is dotted with small lakes that have formed in natural depressions that receive irrigation runoff water. This study assesses the water quality and ecology of some of these lakes to determine their suitability as sources of irrigation water and income generation from fish production. Since May 2006, water quality and aquatic food web data have been collected and analyzed from 13 of these lakes. Lake salinity ranged from 1 to more than 10 g/L. Few hydrophobic organic contaminants were found in samples collected during the peak of the 2006 growing season, and aquatic species diversity and relative density were low in most lakes. Ongoing research includes estimation of aquatic food web structure and anthropogenic impacts on the ecosystem.

Original languageEnglish
Title of host publicationWorld Environmental and Water Resources Congress 2008
Subtitle of host publicationAhupua'A
Volume316
DOIs
Publication statusPublished - May 2008
Externally publishedYes
EventWorld Environmental and Water Resources Congress 2008: Ahupua'a - Honolulu, HI, United States
Duration: 12 May 200816 May 2008

Publication series

NameWorld Environmental and Water Resources Congress 2008: Ahupua'a - Proceedings of the World Environmental and Water Resources Congress 2008
Volume316

Conference

ConferenceWorld Environmental and Water Resources Congress 2008: Ahupua'a
CountryUnited States
CityHonolulu, HI
Period12/05/0816/05/08

Keywords

  • Asia
  • Ecology
  • Irrigation
  • Lakes
  • Runoff
  • Water quality

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