Lake Ioni (), also known as Yonai (), (, ''Yunin'') is a large freshwater lake in Chukotsky District,

Chukotka Autonomous Okrug Chukotka (russian: Чуко́тка), officially the Chukotka Autonomous Okrug,, ''Čukotkakèn avtonomnykèn okrug'', is the easternmost federal subjects of Russia, federal subject of Russia. It is an autonomous okrug situated in the Russian ...

Russia Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...

Google Earth Google Earth is a computer program that renders a 3D computer graphics, 3D representation of Earth based primarily on satellite imagery. The program maps the Earth by superimposition, superimposing satellite images, aerial photography, and geog ...

It has an area of . Currently there are no permanent settlements on the shores of the lake, but there are remains of

Stone Age The Stone Age was a broad prehistoric period during which stone was widely used to make tools with an edge, a point, or a percussion surface. The period lasted for roughly 3.4 million years, and ended between 4,000 BC and 2,000 BC, with t ...

dwellings.The Stone Age of the Chukchi Peninsula - National Park Service
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Reindeer Reindeer (in North American English, known as caribou if wild and ''reindeer'' if domesticated) are deer in the genus ''Rangifer''. For the last few decades, reindeer were assigned to one species, ''Rangifer tarandus'', with about 10 subspe ...

herders occasionally visit the area, as well as fishermen. The nearest inhabited place is Lorino, located away.

Geography

The lake is located in the center of the Chukotka Peninsula, south of

Kolyuchin Bay Kolyuchin Bay (russian: Колючинская губа; ''Kolyuchinskaya guba'') is a large bay in the Chukchi Sea on the northern shore of the Chukotka Peninsula, Russia. Administratively this bay belongs to the Chukotka Autonomous Okrug of th ...

. Ioni is the largest lake in its district. It lies in the Mechigmen-Kolyuchin basin, a large intermontane basin of the western part of the Chukotka Mountains. high Mount Ioni rises to the NW of the lake. Ioni is fed by at least five streams originating in the adjacent mountains. The largest is the Priozernaya that flows into the lake from the northeast. River Yonaypilgyn is the outflow of the lake. Ioni is connected by the Yuniwei channel with river Ionivaam, part of the drainage basin of Kolyuchin Bay. The lake freezes in the first half of September and stays under ice until June.Chukotka Autonomous Okrug - Water of Russia
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Flora and fauna

The area surrounding Ioni has low mountain

tundra In physical geography, tundra () is a type of biome where tree growth is hindered by frigid temperatures and short growing seasons. The term ''tundra'' comes through Russian (') from the Kildin Sámi word (') meaning "uplands", "treeless moun ...

vegetation. The banks of the lake are gently sloping and on the eastern side swampy with hummocks and

thermokarst Thermokarst is a type of terrain characterised by very irregular surfaces of marshy hollows and small hummocks formed as ice-rich permafrost thaws. The land surface type occurs in Arctic areas, and on a smaller scale in mountainous areas such as ...

pools. There are no

aquatic plants Aquatic plants are plants that have adapted to living in aquatic environments (saltwater or freshwater). They are also referred to as hydrophytes or macrophytes to distinguish them from algae and other microphytes. A macrophyte is a plant that ...

Anadromous Fish migration is mass relocation by fish from one area or body of water to another. Many types of fish migrate on a regular basis, on time scales ranging from daily to annually or longer, and over distances ranging from a few metres to thousan ...

Dolly Varden char The Dolly Varden trout (''Salvelinus malma'') is a species of salmonid fish native to cold-water tributaries of the Pacific Ocean in Asia and North America. It belongs to the genus ''Salvelinus'', or true chars, which includes 51 recognized spe ...

is common in the lake. Other fish species include

sardine cisco ''Coregonus sardinella'', known as the least cisco or the sardine cisco, is a fresh- and brackishwater salmonid fish that inhabits rivers, estuaries and coastal waters of the marginal seas of the Arctic Basin, as well as some large lakes of tho ...

, Siberian whitefish, broad whitefish,The Size-Age Structure and Growth of Whitefish (Coregonidae) in Arctic Lake Ioni, Eastern Chukotka
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burbot The burbot (''Lota lota'') is the only gadiform (cod-like) freshwater fish Freshwater fish are those that spend some or all of their lives in fresh water, such as rivers and lakes, with a salinity of less than 1.05%. These environments di ...

, Arctic grayling, as well as Alaska blackfish in shallow thermokarst ponds. Migratory birds, such as the snow goose, sandhill crane and emperor goose pass through the area and stop at the lake. But owing to the short relatively warm season Ioni is not a suitable place for nesting.Водно-болотные угодия России (Wetlands of Russia), Озеро Иони
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References

External links

Озеро Иони - Чукотский автономный округЧукотский поход. Часть 2 "Озеро Иони"Beringia National Park
Lakes of Chukotka Autonomous Okrug {{ChukotkaAutonomousOkrug-geo-stub ru:Ёонай

Geography

Flora and fauna

See also

References

External links