{{Short description|Lake in Kazakhstan and Russia}} {{Infobox body of water | name = Siverga | other_name = Сиверга | image = Siverga 2020-08-06-23 59 Sentinel-2 L2A.jpg | caption = Sentinel-2 image of the lake | image_bathymetry = | caption_bathymetry = | location = Ishim Plain<br/>West Siberian Plain | coords = {{coord|55|24|21|N|68|43|44|E|type:waterbody_region:KZ|display=inline,title}} | pushpin_map = Russia Tyumen Oblast#Kazakhstan | type = endorheic | inflow = | outflow = | catchment = | basin_countries = Russian Federation & Kazakhstan | length = {{convert|12|km|sp=us}} | width = {{convert|5|km|sp=us}} | area = {{convert|53|sqkm|sp=us}} | depth = | max-depth = | volume = | residence_time = UTC+6 | shore = {{convert|53|km|sp=us}} | elevation = {{convert|118|m|sp=us}} | islands = | cities = }} '''Siverga''' ({{langx|kk|Сиверга}}; {{langx|ru|Сиверга}} , is a salt lake in Kyzylzhar District, North Kazakhstan Region, Kazakhstan and Berdyuzhye and Kazan districts of Tyumen Oblast, Russian Federation.<ref name="STM">{{cite web|url=https://maps.vlasenko.net/smtm1000/n-42.jpg|title=N-42 Topographic Chart (in Russian)|access-date=6 March 2024}}</ref>
The lake is located {{convert|45|km|sp=us}} to the southeast of Berdyuzhye and {{convert|32|km|sp=us}} to the southwest of Kazanskoye, the district capitals in Russia, and {{convert|43|km|sp=us}} to the NNW of Petropavl city, the regional capital in Kazakhstan. Polovinnoye village lies {{convert|1.5|km|sp=us}} to the west of the western shore and Novoalexandrovka {{convert|1|km|sp=us}} to the southeast of the eastern shore. Siverga is located at the Kazakhstan–Russia border, with most of the lake in Russia and only a small sector of the southern end in Kazakhstan.<ref name="GЕ"/>
==Geography== Siverga is an endorheic lake belonging to the Ishim River basin. It is located in an area dotted with small lakes at the southern edge of the Ishim Plain, part of the West Siberian Plain. The lake has an elongated capital letter "E" shape, stretching from north to south for almost {{convert|12|km|sp=us}}. It has two bays opening to the northeastern and southeastern ends respectively. There is also a bay in the center of the eastern shore with an attached small circular lake.<ref name="GЕ"/>
Lake Akush is located {{convert|8|km|sp=us}} to the southeast, also on the border, and Tavolzhan {{convert|60|km|sp=us}} to the east. Lake Stanovoye lies in Kazakhstan, {{convert|67|km|sp=us}} to the SSW and Medvezhye in Russia, {{convert|43|km|sp=us}} to the WSW.<ref name="GЕ">Google Earth</ref><ref name="STM"/>
==Fauna== The lake is a {{convert|7500|ha|sp=us}} important bird area, providing a habitat for a number of migratory bird species, including the nesting of the pallid harrier and the northern pintail. The Dalmatian pelican has also been reported at the lake.<ref>[https://datazone.birdlife.org/site/factsheet/siverga-lake-iba-russia-(central-asian) Siverga lake - BirdLife Data Zone]</ref> In the Russian Federation Siverga is also an officially protected area.<ref name="OOPT">[http://oopt.aari.ru/oopt/%D0%A1%D0%B8%D0%B2%D0%B5%D1%80%D0%B3%D0%B0 ООПТ России - Сиверга]</ref>
==References== {{Reflist}}
==See also== *List of lakes of Russia
==External links== *[https://www.sciencedirect.com/science/article/abs/pii/S0883292719301386 Saline lakes of Northern Kazakhstan: Geochemical correlations of elements and controls on their accumulation in water and bottom sediments]
{{Lakes of Kazakhstan}} Category:Lakes of Tyumen Oblast Category:Endorheic lakes of Asia Category:Lakes of North Kazakhstan Region Category:West Siberian Plain Category:Kazakhstan–Russia border Category:Important Bird Areas of Russia Category:Important Bird Areas of Kazakhstan