|Central coordinates||67o 31.50' East 40o 39.72' North|
|IBA criteria||A1, A4i, A4iii|
|Altitude||240 - 289m|
|Year of IBA assessment||2006|
Site description The IBA is located 35 kilometres west of the regional centre Dustlik in Djizakh region. It is a wastewater reservoir fed from the Kly and Akbulak collector channels and from Aydar lake. The general area is more than 600 sq. km. The shores of the northern and southwestern parts of the lake are steep; the east is more flat, and the western is prone to flooding in recent years. In the northeastern and southeastern parts of the lake the shoreline is indented. Here there are many narrow long shallow gulfs with riparian forests and reed. The lake freezes, but not annually. The whole of Tuzkan Lake is in need of protection. Strict protection (state reserve) for the southeast part has already been proposed by the GEF/UNDP "Creating of Nuratau-Kyzylkum biosphere natural sanctuary as a model of preservation biodiversity of Uzbekistan" project. A seasonal (wintering) natural sanctuary is suggested for the northwestern part which should include limitation of some kinds of activities eg fishing (contols and methods), hunting (species restrictions), reed management etc. Although only a few sites have been formally proposed under the A3 biome-restricted criteria (for biome CA04b Eurasian Desert and Semi-desert), many of the IBAs in the Kyzylkum Desert region support populations of biome-restricted species and, effectively, form a network of sites throughout the area.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Greylag Goose Anser anser||winter||2009||4,014 individuals||good||A4i||Least Concern|
|Ruddy Shelduck Tadorna ferruginea||winter||2003||7-15,304 adults only||medium||A4i||Least Concern|
|Ferruginous Duck Aythya nyroca||breeding||2006||5-146 adults only||medium||A1||Near Threatened|
|Great Crested Grebe Podiceps cristatus||winter||2003-2006||9-571 adults only||medium||A4i||Least Concern|
|Black-necked Grebe Podiceps nigricollis||winter||2003-2004||157-1,034 adults only||medium||A4i||Least Concern|
|Dalmatian Pelican Pelecanus crispus||winter||2003-2006||3-111 adults only||medium||A1, A4i||Vulnerable|
|Pygmy Cormorant Phalacrocorax pygmeus||winter||2003-2006||495-894 adults only||medium||A4i||Least Concern|
|Great Cormorant Phalacrocorax carbo||winter||2003||52-13,573 adults only||medium||A4i||Least Concern|
|Cinereous Vulture Aegypius monachus||unknown||2003||4 adults only||medium||A1||Near Threatened|
|Pallas's Fish-eagle Haliaeetus leucoryphus||winter||2004||6 adults only||medium||A1||Vulnerable|
|Common Coot Fulica atra||winter||2003-2006||487-22,867 adults only||medium||A4i||Least Concern|
|Common Crane Grus grus||winter||2003-2006||848 individuals||medium||A4i||Least Concern|
|Asian Dowitcher Limnodromus semipalmatus||passage||2006||6 adults only||medium||A1||Near Threatened|
|A4iii Species group - waterbirds||winter||2003-2004||26,047-61,582 individuals||medium||A4iii|
|Protected area||Designation||Area (ha)||Relationship with IBA||Overlap with IBA (ha)|
|Arnasai||Wildlife Refuge||63,300||protected area contained by site||81,086|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Land-use||Extent (% of site)|
|nature conservation and research||20%|
Other biodiversity Typical desert mammals include gerbils, jerboas, Spermophilopsis leptodactylus, Vulpes vulpes karagan, Vulpes corsac, Felis libyca and Felis chaus, Meles meles and Sus scrofa. The number of Canis aureus is increasing. Myocastor coypus is increasing in both distribution and numbers. IUCN listed animals are Agrionemys horsfieldi and Varanus griseus. On the shores and islands there are thickets of desert plants (Haloxylon persicum, Populus ariana, P. proinosa, Alhagi psendalhagi, Ammodendron argentum, Astragalus amarus, Ferula caspica etc); scrub and grass vegetation; along the shoreline Phragmites communis and Typha angustifolia; in the water - Potomogeton lucens, P. pectinatus, Myriophyllum spicatum, Ceratophyllum demersum etc.
Protection status Arnasay State Natural Sanctuary - a specially created natural sanctuary for the protection of birds - was created after the liquidation of the Arnasay State Reserve. The reason for liquidation was the intensive development of fisheries. The Natural Sanctuary has less restrictions with only hunting prohibited. According to the plan of organization of the Nuratau-Kyizylkum Biosphere Natural Sanctuary a part of the lake (the delta of the Kly river and Akbulak collector channel) has been proposed as a reserved zone. Thus its importance as a place of concentration for waterfowl at different seasons of the year was taken into account.
References Atadjanov, A., Filatov, A., Lanovenko, Y., Zagrebin, S., Chernogaev, E., Khodjaev, J. Aerial Survey of Wetlands in Uzbekistan (winter 2000). Report of the project RSGF "Protection of Uzbekistan's Wetlands and their Waterfowl". Part 3. Tashkent, June 2001. Busuttil S. An ornithological survey of globally threatened birds. INTERIM REPORT. UZBEKISTAN REPORT. January and April 2000 // OSME, Sandgrouse (engl). Wetland International IWC Data Base (2003-2005) Report on field surveys of IBA on Tuzkan and Arnasay, 2006 (in Russian)
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Recommended citation BirdLife International (2013) Important Bird Areas factsheet: Tuzkan Lake. Downloaded from http://www.birdlife.org on 12/12/2013
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