such as "Introduction", "Conclusion"..etc
Lake Urmia (or Orumiyeh), is one of the largest permanent
hypersaline lakes in the world and resembles the Great Salt Lake in the
western USA in many respects of morphology, chemistry and sediments . Despite this, and its several values, including conservation, little literature has been published on the lake and its biota
The aim of the present paper is to provide a brief review based on
previous and recent literature on various aspects of Urmia Lake with
particular emphasis on conservation and management. Although we cannot
provide an all inclusive coverage here, we hope that it will be
sufficient to introduce this remarkable lake to the general reader.
Urmia lake can be characterized as oligotrophic in terms of phytoplankton production in the range of 0.5–0.8 μg/l , with lower values compared to Great Salt Lake (0.5–3.5 μg/l) . The predominance of the Na+ and Cl- ions illustrates the thalassohaline character of Urmia lake . Therefore, Urmia Lake is an oligotrophic lake of thalassohaline origin  located in northwestern Iran at an altitude of 1250 m above sea level . The total surface area ranges between 4750 km2 and 6100 km2 
depending on evaporation and water influx. The catchment area of the
lake contains 21 permanent and ephemeral streams together with 39
episodic rivers, flowing through agricultural, urban and/or industrial
areas that drain into this terminal lake, mostly without waste water
treatment . The maximum length and width of the lake are 128–140 km and 50 km, respectively [11,13]. The average and maximum depths are 6 m and 16 m, respectively . The lake is divided into north and south parts separated by a causeway , which has a gap that allows for a limited exchange of water between the two arms .
Considering the role of Artemia in Urmia Lake, the Iranian Fisheries Research Organization (IFRO) established the Artemia Research Center in Urmia in 2000. On the basis of the vital role of Artemia as
a live food in aquaculture, this center operates through various
departments including Hydrochemistry, Stock Assessment, Culturing of
Artemia and Algae species, Aquatic Diseases Hygiene. Researches about
various aspects of Artemia in Urmia Lake are important
research activities carried out at this center that has been nominated
by FAO (Food Agriculture Organization) as a reference center for Artemia in central and west Asia. In addition, the Artemia & Aquatic Animals Research Center at Urmia University conducts various research projects on Artemia in collaboration with IFRO (Iranian Fisheries Research Organization). The IFRO Artemia Research Center seeks to achieve useful results in both basic and applied research on Artemia as a live-food organism for aquaculture.
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