Lake Onega
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Lake Onega (; also known as Onego, rus, Оне́жское о́зеро, r=Onezhskoe ozero, p=ɐˈnʲɛʂskəɪ ˈozʲɪrə; fi, Ääninen, Äänisjärvi; vep, Änine, Änižjärv) is a
lake A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much large ...
in northwestern
Russia Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-ei ...
, on the territory of the
Republic of Karelia The Republic of Karelia (russian: Респу́блика Каре́лия, Respublika Kareliya; ; krl, Karjalan tašavalta; ; fi, Karjalan tasavalta; vep, Karjalan Tazovaldkund, Ludic: ''Kard’alan tazavald''), also known as just Karelia (ru ...
,
Leningrad Oblast Leningrad Oblast ( rus, Ленинградская область, Leningradskaya oblast’, lʲɪnʲɪnˈgratskəjə ˈobləsʲtʲ, , ) is a federal subject of Russia (an oblast). It was established on 1 August 1927, although it was not until 1 ...
and Vologda Oblast. It belongs to the basin of the
Baltic Sea The Baltic Sea is an arm of the Atlantic Ocean that is enclosed by Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Russia, Sweden and the North and Central European Plain. The sea stretches from 53°N to 66°N latitude and from ...
, and is the second-largest lake in
Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia ...
after
Lake Ladoga Lake Ladoga (; rus, Ла́дожское о́зеро, r=Ladozhskoye ozero, p=ˈladəʂskəjə ˈozʲɪrə or rus, Ла́дога, r=Ladoga, p=ˈladəɡə, fi, Laatokka arlier in Finnish ''Nevajärvi'' ; vep, Ladog, Ladoganjärv) is a fresh ...
, slightly smaller than
Lebanon Lebanon ( , ar, لُبْنَان, translit=lubnān, ), officially the Republic of Lebanon () or the Lebanese Republic, is a country in Western Asia. It is located between Syria to the north and east and Israel to the south, while Cyprus lie ...
. The lake is fed by about 50 rivers and is drained by the
Svir The Svir (, Veps: , Karelian/ Finnish: ) is a river in Podporozhsky, Lodeynopolsky, and Volkhovsky districts in the north-east of Leningrad Oblast, Russia. It flows westwards from Lake Onega to Lake Ladoga, thus connecting the two large ...
. There are about 1,650 islands on the lake. They include
Kizhi Kizhi ( rus, Ки́жи, p=ˈkʲiʐɨ, krl, Kiži) is an island near the geometrical center of Lake Onega in the Republic of Karelia ( Medvezhyegorsky District), Russia. It is elongated from north to south and is about long, wide and is about ...
, which hosts a historical complex of 89 Orthodox churches and other wooden structures of the 15th–20th centuries. The complex includes a
UNESCO The United Nations Educational, Scientific and Cultural Organization is a List of specialized agencies of the United Nations, specialized agency of the United Nations (UN) aimed at promoting world peace and security through international coope ...
World Heritage A World Heritage Site is a landmark or area with legal protection by an international convention administered by the United Nations Educational, Scientific and Cultural Organization (UNESCO). World Heritage Sites are designated by UNESCO for ...
site,
Kizhi Pogost Kizhi Pogost (russian: Кижский погост) is a historical site dating from the 17th century on Kizhi island. The island is located on Lake Onega in the Republic of Karelia (Medvezhyegorsky District), Russia. The pogost is the area inside ...
. The eastern shores of the lake contain about 1,200
petroglyph A petroglyph is an image created by removing part of a rock surface by incising, picking, carving, or abrading, as a form of rock art. Outside North America, scholars often use terms such as "carving", "engraving", or other descriptions ...
s (rock engravings) dated to the 4th–2nd millennia BC, which have also been inscribed as a UNESCO World Heritage site. The major cities on the lake are
Petrozavodsk Petrozavodsk (russian: Петрозаводск, p=pʲɪtrəzɐˈvotsk; Karelian, Vepsian and fi, Petroskoi) is the capital city of the Republic of Karelia, Russia, which stretches along the western shore of Lake Onega for some . The population ...
, Kondopoga and
Medvezhyegorsk Medvezhyegorsk (russian: Медвежьего́рск; krl, Karhumägi; fi, Karhumäki) is a town and the administrative center of Medvezhyegorsky District of the Republic of Karelia, Russia. Population: 15,800 (1959). History A village i ...
.


Geological history

The lake is of glacial-tectonic origin and is a small remnant of a larger body of water which existed in this area during an
Ice Age An ice age is a long period of reduction in the temperature of Earth's surface and atmosphere, resulting in the presence or expansion of continental and polar ice sheets and alpine glaciers. Earth's climate alternates between ice ages and gre ...
.S.V. Kislovskiy ''Did you know?'' The gazetteer of the Leningrad region. LA: Lenizdat, 1974, pp. 104–105 In
geologic Geology () is a branch of natural science concerned with Earth and other astronomical objects, the features or rocks of which it is composed, and the processes by which they change over time. Modern geology significantly overlaps all other E ...
terms, the lake is rather young, formed – like almost all lakes in northern Europe – through the carving activity of the inland ice sheets in the latter part of the last ice age, about 12,000 years ago: In the
Paleozoic The Paleozoic (or Palaeozoic) Era is the earliest of three geologic eras of the Phanerozoic Eon. The name ''Paleozoic'' ( ;) was coined by the British geologist Adam Sedgwick in 1838 by combining the Greek words ''palaiós'' (, "old") and ...
Era (400–300 million years ago) the entire territory of the modern basin of the lake was covered with a shelf sea lying near the ancient, near-equatoric Baltic continent. Sediments at that time –
sandstone Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicat ...
, sand, clay and
limestone Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms w ...
– form a layer covering the
Baltic Shield The Baltic Shield (or Fennoscandian Shield) is a segment of the Earth's crust belonging to the East European Craton, representing a large part of Fennoscandia, northwestern Russia and the northern Baltic Sea. It is composed mostly of Archean an ...
which consists of
granite Granite () is a coarse-grained ( phaneritic) intrusive igneous rock composed mostly of quartz, alkali feldspar, and plagioclase. It forms from magma with a high content of silica and alkali metal oxides that slowly cools and solidifies un ...
,
gneiss Gneiss ( ) is a common and widely distributed type of metamorphic rock. It is formed by high-temperature and high-pressure metamorphic processes acting on formations composed of igneous or sedimentary rocks. Gneiss forms at higher temperatures a ...
and greenstone. The retreat of the
Ice Age An ice age is a long period of reduction in the temperature of Earth's surface and atmosphere, resulting in the presence or expansion of continental and polar ice sheets and alpine glaciers. Earth's climate alternates between ice ages and gre ...
glaciers formed the Littorina Sea. Its level was first higher than at present, but it gradually lowered, thereby decreasing the sea area and forming several lakes in the Baltic region.


Topography and hydrography

Lake Onega has a surface area of without islands and a volume of ; its length is about and width about . It is the second largest lake in
Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia ...
, and the 18th largest lake by area in the world. Its southern banks are mostly low and continuous, whereas northern banks are
rocky ''Rocky'' is a 1976 American sports drama film directed by John G. Avildsen and written by and starring Sylvester Stallone. It is the first installment in the ''Rocky'' franchise and stars Talia Shire, Burt Young, Carl Weathers, and Burges ...
and rugged.Encyclopedic Dictionary of Geography: Geographical names – Moscow: Soviet Encyclopedia. 1983, p. 319. They contain numerous elongated bays resulting in the lake's outline appearing similar to a giant
crayfish Crayfish are freshwater crustaceans belonging to the clade Astacidea, which also contains lobsters. In some locations, they are also known as crawfish, craydids, crawdaddies, crawdads, freshwater lobsters, mountain lobsters, rock lobsters, m ...
. In the northern part lies a large Zaonezhye Peninsula (russian: Заонежье); south of it, is the Big Klimenetsky (russian: Большой Клименецкий) island. To the west of them lies the deep (deeper than ) Greater Onega (russian: Большое Онего) area containing the Kondopozhskaya (russian: Кондопожская губа, depth up to ), Ilem-Gorskaya (), Lizhemskoy () and Unitskoy () bays. To the southwest of Greater Onega lies Petrozavodskoye Onego (russian: Петрозаводское Онего) containing the large Petrozavodsk and small Yalguba and Pinguba bays. To the east of Zaonezhye there is a bay, northern part of which is called Povenetsky Bay and the southern part is Zaonezhsky Bay. There, deep sections alternate with banks and islands which split the bay into several parts. The southernmost part of them, Lesser Onega, is deep. All the shores there are rocky.Lake Onega
russia.rin.ru. Retrieved on 2013-03-22.
The average depth of the lake is , and the deepest spot of is located in the northern part. The average depth is in the middle and rises to in the southern part. The bottom has a very uneven profile, it is covered with
silt Silt is granular material of a size between sand and clay and composed mostly of broken grains of quartz. Silt may occur as a soil (often mixed with sand or clay) or as sediment mixed in suspension with water. Silt usually has a floury feel ...
, and contains numerous trenches of various size and shape in the northern part. The trenches are separated by large shallow banks. Such bottom structure is favorable for fish, and the banks are used for commercial fishing.Karelia. Tourist portal
Ticrk.ru (2010-03-31). Retrieved on 2013-03-22.
The water level is stabilized by the Verhnesvirskaya hydropower plant and varies by only over the year. It rises due to the spring flood which lasts to 2 months. The highest water level is in June–August and the lowest is in March–April. Rivers bring of water per year to the lake, that is up to 74% of the water balance; the rest is provided by
precipitation In meteorology, precipitation is any product of the condensation of atmospheric water vapor that falls under gravitational pull from clouds. The main forms of precipitation include drizzle, rain, sleet, snow, ice pellets, graupel and hail. ...
. Most of the lake water (84% or per year) outflows via a single river,
Svir The Svir (, Veps: , Karelian/ Finnish: ) is a river in Podporozhsky, Lodeynopolsky, and Volkhovsky districts in the north-east of Leningrad Oblast, Russia. It flows westwards from Lake Onega to Lake Ladoga, thus connecting the two large ...
, and the remaining 16% evaporates from the lake surface. There are frequent storms more characteristic of a sea than a lake; waves of are not uncommon and may even reach . The lake freezes near the coast and bays in late November and December and around mid-January in its center. Thawing starts in April in the tributaries and reaches the lake in May. Water in the deep parts is clear, with the visibility up to . In the bays, the visibility may decrease to about a meter. The water is fresh, with a
salinity Salinity () is the saltiness or amount of salt (chemistry), salt dissolved in a body of water, called saline water (see also soil salinity). It is usually measured in g/L or g/kg (grams of salt per liter/kilogram of water; the latter is dimensio ...
of 35 mg/L. This is relatively low for a lake and is about times lower than in the other large lake of the area,
Lake Ladoga Lake Ladoga (; rus, Ла́дожское о́зеро, r=Ladozhskoye ozero, p=ˈladəʂskəjə ˈozʲɪrə or rus, Ла́дога, r=Ladoga, p=ˈladəɡə, fi, Laatokka arlier in Finnish ''Nevajärvi'' ; vep, Ladog, Ladoganjärv) is a fresh ...
. The maximum surface water temperature is on the open lake and in the bays. The deep waters are much colder, from in winter to in summer. Weather is relatively cold, with temperatures below for half of the year and average summer temperatures of about .


Basin and islands

The
catchment area In human geography, a catchment area is the area from which a location, such as a city, service or institution, attracts a population that uses its services and economic opportunities. Catchment areas may be defined based on from where people are ...
of drains into the lake via 58 rivers and more than 110 tributaries, including the Shuya, Suna,
Vodla The Vodla (, ) is a river in the south-east of Republic of Karelia, Russia. The town of Pudozh is located along Vodla. The river is formed at the confluence of the rivers Sukhaya Vodla and Vama, two outflows of the Lake Vodlozero, a large freshwa ...
,
Vytegra Vytegra ( rus, Вы́тегра, p=ˈvɨtʲɪɡrə) is a town and the administrative center of Vytegorsky District in Vologda Oblast, Russia, located along the shores of the Vytegra River on Volga–Baltic Waterway, northwest of Vologda, the ...
and
Andoma The Andoma (russian: Андома) is a river in Vytegorsky District of Vologda Oblast in Russia. It flows out of Lake Groptozero and is a tributary of Lake Onega. It is long, and the area of its basin . The main tributary of the Andoma is the ...
. The only outgoing
Svir The Svir (, Veps: , Karelian/ Finnish: ) is a river in Podporozhsky, Lodeynopolsky, and Volkhovsky districts in the north-east of Leningrad Oblast, Russia. It flows westwards from Lake Onega to Lake Ladoga, thus connecting the two large ...
, which marks the southern boundary of Karelia, runs from the southwestern shore of Lake Onega to
Lake Ladoga Lake Ladoga (; rus, Ла́дожское о́зеро, r=Ladozhskoye ozero, p=ˈladəʂskəjə ˈozʲɪrə or rus, Ла́дога, r=Ladoga, p=ˈladəɡə, fi, Laatokka arlier in Finnish ''Nevajärvi'' ; vep, Ladog, Ladoganjärv) is a fresh ...
and continues as the
Neva The Neva (russian: Нева́, ) is a river in northwestern Russia flowing from Lake Ladoga through the western part of Leningrad Oblast (historical region of Ingria) to the Neva Bay of the Gulf of Finland. Despite its modest length of , ...
to the
Gulf of Finland The Gulf of Finland ( fi, Suomenlahti; et, Soome laht; rus, Фи́нский зали́в, r=Finskiy zaliv, p=ˈfʲinskʲɪj zɐˈlʲif; sv, Finska viken) is the easternmost arm of the Baltic Sea. It extends between Finland to the north and ...
. The
White Sea–Baltic Canal The White Sea–Baltic Canal (russian: Беломо́рско-Балти́йский кана́л, , ), often abbreviated to White Sea Canal () is a ship canal in Russia opened on 2 August 1933. It connects the White Sea, in the Arctic Ocean, with ...
runs through the lake from the
White Sea The White Sea (russian: Белое море, ''Béloye móre''; Karelian and fi, Vienanmeri, lit. Dvina Sea; yrk, Сэрако ямʼ, ''Serako yam'') is a southern inlet of the Barents Sea located on the northwest coast of Russia. It is s ...
to the
Baltic Sea The Baltic Sea is an arm of the Atlantic Ocean that is enclosed by Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Russia, Sweden and the North and Central European Plain. The sea stretches from 53°N to 66°N latitude and from ...
. The
Volga–Baltic Waterway The Volga–Baltic Waterway (Volgobalt, Волгобалт), formerly known as the Mariinsk Canal System (Russian: Мариинская водная система), is a series of canals and rivers in Russia which link the Volga with the Balti ...
connects Onega Lake with the
Volga The Volga (; russian: Во́лга, a=Ru-Волга.ogg, p=ˈvoɫɡə) is the longest river in Europe. Situated in Russia, it flows through Central Russia to Southern Russia and into the Caspian Sea. The Volga has a length of , and a catch ...
,
Caspian Sea The Caspian Sea is the world's largest inland body of water, often described as the world's largest lake or a full-fledged sea. An endorheic basin, it lies between Europe and Asia; east of the Caucasus, west of the broad steppe of Central A ...
and
Black Sea The Black Sea is a marginal mediterranean sea of the Atlantic Ocean lying between Europe and Asia, east of the Balkans, south of the East European Plain, west of the Caucasus, and north of Anatolia. It is bounded by Bulgaria, Georgia, Rom ...
. The Onega Canal, which follows the southern banks of the lake, was built in 1818–1820 and 1845–1852 between
Vytegra Vytegra ( rus, Вы́тегра, p=ˈvɨtʲɪɡrə) is a town and the administrative center of Vytegorsky District in Vologda Oblast, Russia, located along the shores of the Vytegra River on Volga–Baltic Waterway, northwest of Vologda, the ...
in the east and
Svir The Svir (, Veps: , Karelian/ Finnish: ) is a river in Podporozhsky, Lodeynopolsky, and Volkhovsky districts in the north-east of Leningrad Oblast, Russia. It flows westwards from Lake Onega to Lake Ladoga, thus connecting the two large ...
in the west. The canal was part of the
Mariinsk Canal System Mariinsk (russian: link=no, Мариинск) is a town in Kemerovo Oblast, Russia, where the Trans-Siberian Railway crosses the Kiya River ( Ob's basin), northeast of Kemerovo, the administrative center of the oblast. Population: 39,700 (19 ...
, a forerunner of the
Volga–Baltic Waterway The Volga–Baltic Waterway (Volgobalt, Волгобалт), formerly known as the Mariinsk Canal System (Russian: Мариинская водная система), is a series of canals and rivers in Russia which link the Volga with the Balti ...
, and aimed to create a quiet pass for boats avoiding the stormy waters of the lake. It is around wide, and lies between and from the shores of the lake. The canal is not used for active navigation at present.Onega Lake
(in Russian)
There are about 1650 islands in the lake with a total area of about . Whereas the most famous is
Kizhi Kizhi ( rus, Ки́жи, p=ˈkʲiʐɨ, krl, Kiži) is an island near the geometrical center of Lake Onega in the Republic of Karelia ( Medvezhyegorsky District), Russia. It is elongated from north to south and is about long, wide and is about ...
, which contains historical wooden churches of the 18th century, the largest island is Big Klimenetsky with an area of . It contains a few settlements, a school and an hill. Other large islands are Big Lelikovsky and Suysari.


Flora and fauna

The lake banks are low and are flooded with raising water level. They are therefore swampy and are rich in reed, hosting ducks, geese and swans. The coastal region is covered with dense virgin forests.X-team. Lake Onega
. X-team.ru. Retrieved on 2013-03-22.
Major tree types are
coniferous Conifers are a group of cone-bearing seed plants, a subset of gymnosperms. Scientifically, they make up the division Pinophyta (), also known as Coniferophyta () or Coniferae. The division contains a single extant class, Pinopsida. All ext ...
, but also common are lime (linden), elm and European alder. Common mammals include elks,
brown bear The brown bear (''Ursus arctos'') is a large bear species found across Eurasia and North America. In North America, the populations of brown bears are called grizzly bears, while the subspecies that inhabits the Kodiak Islands of Alaska is k ...
s,
wolves The wolf (''Canis lupus''; : wolves), also known as the gray wolf or grey wolf, is a large canine native to Eurasia and North America. More than thirty subspecies of ''Canis lupus'' have been recognized, and gray wolves, as popularly un ...
,
red fox The red fox (''Vulpes vulpes'') is the largest of the true foxes and one of the most widely distributed members of the Order (biology), order Carnivora, being present across the entire Northern Hemisphere including most of North America, Europe ...
es,
European hare The European hare (''Lepus europaeus''), also known as the brown hare, is a species of hare native to Europe and parts of Asia. It is among the largest hare species and is adapted to temperate, open country. Hares are herbivorous and feed mainly ...
s, blue hares,
red squirrel The red squirrel (''Sciurus vulgaris'') is a species of tree squirrel in the genus ''Sciurus'' common throughout Europe and Asia. The red squirrel is an arboreal, primarily herbivorous rodent. In Great Britain, Ireland, and in Italy numbe ...
s,
lynx A lynx is a type of wild cat. Lynx may also refer to: Astronomy * Lynx (constellation) * Lynx (Chinese astronomy) * Lynx X-ray Observatory, a NASA-funded mission concept for a next-generation X-ray space observatory Places Canada * Lynx, ...
es,
pine marten The European pine marten (''Martes martes''), also known as the pine marten, is a mustelid native to and widespread in most of Europe, Asia Minor, the Caucasus and parts of Iran, Iraq and Syria. It is listed as Least Concern on the IUCN Red List. ...
s,
European badger The European badger (''Meles meles''), also known as the Eurasian badger, is a badger species in the family Mustelidae native to almost all of Europe. It is classified as least concern on the IUCN Red List as it has a wide range and a large stab ...
s, as well as American
muskrat The muskrat (''Ondatra zibethicus'') is a medium-sized semiaquatic rodent native to North America and an introduced species in parts of Europe, Asia, and South America. The muskrat is found in wetlands over a wide range of climates and habita ...
s and
mink Mink are dark-colored, semiaquatic, carnivorous mammals of the genera '' Neogale'' and '' Mustela'' and part of the family Mustelidae, which also includes weasels, otters, and ferrets. There are two extant species referred to as "mink": ...
s which were introduced to the area in the early 20th century. About 200 bird species from 15 families have been observed in the lake basin. Lake Onega features a large variety of
fish Fish are Aquatic animal, aquatic, craniate, gill-bearing animals that lack Limb (anatomy), limbs with Digit (anatomy), digits. Included in this definition are the living hagfish, lampreys, and Chondrichthyes, cartilaginous and bony fish as we ...
and water
invertebrate Invertebrates are a paraphyletic group of animals that neither possess nor develop a vertebral column (commonly known as a ''backbone'' or ''spine''), derived from the notochord. This is a grouping including all animals apart from the chorda ...
s, including
relict A relict is a surviving remnant of a natural phenomenon. Biology A relict (or relic) is an organism that at an earlier time was abundant in a large area but now occurs at only one or a few small areas. Geology and geomorphology In geology, a r ...
s of the glacial period such as
lamprey Lampreys (sometimes inaccurately called lamprey eels) are an ancient extant lineage of jawless fish of the order Petromyzontiformes , placed in the superclass Cyclostomata. The adult lamprey may be characterized by a toothed, funnel-like s ...
. There are about 47 fish species from 13 families; they include
sturgeon Sturgeon is the common name for the 27 species of fish belonging to the family Acipenseridae. The earliest sturgeon fossils date to the Late Cretaceous, and are descended from other, earlier acipenseriform fish, which date back to the Early ...
,
landlocked salmon The Atlantic salmon (''Salmo salar'') is a species of ray-finned fish in the family Salmonidae. It is the third largest of the Salmonidae, behind Siberian taimen and Pacific Chinook salmon, growing up to a meter in length. Atlantic salmon ar ...
,
brown trout The brown trout (''Salmo trutta'') is a European species of salmonid fish that has been widely introduced into suitable environments globally. It includes purely freshwater populations, referred to as the riverine ecotype, ''Salmo trutta'' morp ...
,
European smelt The smelt or European smelt (''Osmerus eperlanus'') is a species of fish in the family Osmeridae. Shape and appearance The body of the European smelt is typically 15 to 18 cm long, slender and slightly flattened on either side. Larger fi ...
, grayling, roaches,
Crucian carp The crucian carp (''Carassius carassius'') is a medium-sized member of the common carp family Cyprinidae. It occurs widely in northern European regions. Its name derives from the Low German ''karusse'' or ''karutze'', possibly from Medieval L ...
, whitefishes,
char Char may refer to: People *Char Fontane, American actress *Char Margolis, American spiritualist * René Char (1907–1988), French poet *The Char family of Colombia: ** Fuad Char, Colombian senator ** Alejandro Char Chaljub, mayor of Barranquilla ...
,
pike Pike, Pikes or The Pike may refer to: Fish * Blue pike or blue walleye, an extinct color morph of the yellow walleye ''Sander vitreus'' * Ctenoluciidae, the "pike characins", some species of which are commonly known as pikes * ''Esox'', genus of ...
,
European cisco ''Coregonus albula'', known as the vendace or as the European cisco, is a species of freshwater whitefish in the family Salmonidae. It is found in lakes in northern Europe, especially Finland, Latvia, Lithuania, Sweden, Russia and Estonia, and in ...
, common dace, silver bream,
carp bream The common bream, freshwater bream, bream, bronze bream, carp bream or sweaty bream (''Abramis brama''), is a European species of freshwater fish in the family Cyprinidae. It is now considered to be the only species in the genus ''Abramis''. ...
, sabre carp,
spined loach The spined loach (''Cobitis taenia'') is a common freshwater fish in Europe. It is sometimes known as spotted weather loach, not to be confused with the "typical" weather loaches of the genus ''Misgurnus''. This is the type species of the spiny ...
,
wels catfish The wels catfish ( or ; ''Silurus glanis''), also called sheatfish or just wels, is a large species of catfish native to wide areas of central, southern, and eastern Europe, in the basins of the Baltic, Black and Caspian Seas. It has been introd ...
, European eel,
rudd ''Scardinius'' is a genus of ray-finned fish in the family Cyprinidae commonly called rudds. Locally, the name "rudd" without any further qualifiers is also used for individual species, particularly the common rudd (''S. erythrophthalmus''). Th ...
, ide,
gudgeon A gudgeon is a socket-like, cylindrical (i.e., ''female'') fitting attached to one component to enable a pivoting or hinging connection to a second component. The second component carries a pintle fitting, the male counterpart to the gudgeon, ...
,
pike-perch ''Sander'' (formerly known as ''Stizostedion'') is a genus of predatory ray-finned fish in the Family (biology), family Percidae, which also includes the perches, Gymnocephalus, ruffes, and Darter (fish), darters. They are also known as "pike-pe ...
,
European perch The European perch (''Perca fluviatilis''), also known as the common perch, redfin perch, big-scaled redfin, English perch, Euro perch, Eurasian perch, Eurasian river perch, Hatch, poor man’s rockfish or in Anglophone parts of Europe, simply th ...
,
ruffe The Eurasian ruffe (''Gymnocephalus cernua''), also known as ruffe or pope, is a freshwater fish found in temperate regions of Europe and northern Asia. It has been introduced into the Great Lakes of North America, reportedly with unfortuna ...
and
burbot The burbot (''Lota lota'') is the only gadiform (cod-like) freshwater fish. It is also known as bubbot, mariah, loche, cusk, freshwater cod, freshwater ling, freshwater cusk, the lawyer, coney-fish, lingcod, and eelpout. The species is closel ...
.


Ecology

Whereas the area of the lake used to be clean, the pollution level is gradually increasing, especially in the northwestern and northern parts which contain the industrial facilities of Petrozavodsk, Kondopoga and Medvezhyegorsk. About 80% of the population and more than 90% of industry of the basin are concentrated in these areas. The pollution from these three cities amount to about of sewage and drainage water and of emissions per year. Human activity results in about of drain water per year, of which 46% are industrial and household water, 25% is stormwater runoff and 16% is melioration-related drainage. This drainage contains of
phosphorus Phosphorus is a chemical element with the symbol P and atomic number 15. Elemental phosphorus exists in two major forms, white phosphorus and red phosphorus, but because it is highly reactive, phosphorus is never found as a free element on Ear ...
and of
nitrogen Nitrogen is the chemical element with the symbol N and atomic number 7. Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at se ...
; respectively of these elements are removed through the
River Svir A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of wa ...
whereas the rest accumulates in the lake. Ships and motor boats (about 8,000 units) bring oil pollution at the level of about per navigation year, as well as
phenol Phenol (also called carbolic acid) is an aromatic organic compound with the molecular formula . It is a white crystalline solid that is volatile. The molecule consists of a phenyl group () bonded to a hydroxy group (). Mildly acidic, it ...
s (),
lead Lead is a chemical element with the symbol Pb (from the Latin ) and atomic number 82. It is a heavy metal that is denser than most common materials. Lead is soft and malleable, and also has a relatively low melting point. When freshly cu ...
() and oxides of
sulfur Sulfur (or sulphur in British English) is a chemical element with the symbol S and atomic number 16. It is abundant, multivalent and nonmetallic. Under normal conditions, sulfur atoms form cyclic octatomic molecules with a chemical formula ...
, nitrogen, and
carbon Carbon () is a chemical element with the symbol C and atomic number 6. It is nonmetallic and tetravalent In chemistry, the valence (US spelling) or valency (British spelling) of an element is the measure of its combining capacity with o ...
.Anthropogenic influences on the ecosystem of Lake Onega
Novgen.freeservers.com. Retrieved on 2013-03-22.


Economy

The lake basin is a major source of
granite Granite () is a coarse-grained ( phaneritic) intrusive igneous rock composed mostly of quartz, alkali feldspar, and plagioclase. It forms from magma with a high content of silica and alkali metal oxides that slowly cools and solidifies un ...
,
marble Marble is a metamorphic rock composed of recrystallized carbonate minerals, most commonly calcite or Dolomite (mineral), dolomite. Marble is typically not Foliation (geology), foliated (layered), although there are exceptions. In geology, the ...
and black
schist Schist ( ) is a medium-grained metamorphic rock showing pronounced schistosity. This means that the rock is composed of mineral grains easily seen with a low-power hand lens, oriented in such a way that the rock is easily split into thin flakes ...
in Russia which have been exploited in the area since the early 18th century. Also advanced is metallurgy, especially in the Petrozavodsk area which produces about 25% of industrial products of Karelia. Water level of the lake is controlled by the Nizhnesvirskaya (russian: Нижнесвирская ГЭС, "Lower Svir") and Verkhnesvirskaya (russian: Верхнесвирская ГЭС, "Upper Svir") hydroelectric power plants. The former was built between 1927 and 1938 and has a peak power of 99 MW. The construction of Verkhnesvirskaya plant started in 1938, but was interrupted by World War II and could only be resumed in 1947. The plant was completed in 1952 and provided 160 MW of electric power. The associated with the plant Verkhnesvirsk Reservoir has an area of and volume of , i.e. almost the same as those of Onega Lake. Its construction raised the water level of the lake by . The lake contains a well-developed navigation system which is part of the
Volga–Baltic Waterway The Volga–Baltic Waterway (Volgobalt, Волгобалт), formerly known as the Mariinsk Canal System (Russian: Мариинская водная система), is a series of canals and rivers in Russia which link the Volga with the Balti ...
and
White Sea – Baltic Canal White is the lightest color and is achromatic (having no hue). It is the color of objects such as snow, chalk, and milk, and is the opposite of black. White objects fully reflect and scatter all the visible wavelengths of light. White on ...
, connecting the basins of
Baltic Baltic may refer to: Peoples and languages * Baltic languages, a subfamily of Indo-European languages, including Lithuanian, Latvian and extinct Old Prussian *Balts (or Baltic peoples), ethnic groups speaking the Baltic languages and/or originati ...
,
Caspian Caspian can refer to: *The Caspian Sea *The Caspian Depression, surrounding the northern part of the Caspian Sea *The Caspians, the ancient people living near the Caspian Sea *Caspian languages, collection of languages and dialects of Caspian peopl ...
and the northern seas. These canals allow water transport of goods from the lake to the countries from Germany to Iran; most traffic goes to
Finland Finland ( fi, Suomi ; sv, Finland ), officially the Republic of Finland (; ), is a Nordic country in Northern Europe. It shares land borders with Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of B ...
,
Sweden Sweden, formally the Kingdom of Sweden,The United Nations Group of Experts on Geographical Names states that the country's formal name is the Kingdom of SwedenUNGEGN World Geographical Names, Sweden./ref> is a Nordic country located on ...
,
Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...
and
Denmark ) , song = ( en, "King Christian stood by the lofty mast") , song_type = National and royal anthem , image_map = EU-Denmark.svg , map_caption = , subdivision_type = Sovereign state , subdivision_name = Danish Realm, Kingdom of Denmark ...
. The Onega Canal running along the southern shore of the lake there is not used at present. Cargo on Lake Onega amounts to 10–12 million tonnes per year with about 10,300 ship voyages. Lake shores contain two ports (Petrozavodsk and Medvezhyegorsk), 5 wharves (Kondopoga, Povenets, Shala, Vytegra and Ascension (russian: Вознесенье)) and 41 piers. Fishery is an important activity on the lake. About 17 species are being fished commercially, mostly
European cisco ''Coregonus albula'', known as the vendace or as the European cisco, is a species of freshwater whitefish in the family Salmonidae. It is found in lakes in northern Europe, especially Finland, Latvia, Lithuania, Sweden, Russia and Estonia, and in ...
,
smelt Smelt may refer to: * Smelting, chemical process * The common name of various fish: ** Smelt (fish), a family of small fish, Osmeridae ** Australian smelt in the family Retropinnidae and species ''Retropinna semoni'' ** Big-scale sand smelt ''Ath ...
, whitefishes, roaches,
burbot The burbot (''Lota lota'') is the only gadiform (cod-like) freshwater fish. It is also known as bubbot, mariah, loche, cusk, freshwater cod, freshwater ling, freshwater cusk, the lawyer, coney-fish, lingcod, and eelpout. The species is closel ...
,
pike-perch ''Sander'' (formerly known as ''Stizostedion'') is a genus of predatory ray-finned fish in the Family (biology), family Percidae, which also includes the perches, Gymnocephalus, ruffes, and Darter (fish), darters. They are also known as "pike-pe ...
,
perch Perch is a common name for fish of the genus ''Perca'', freshwater gamefish belonging to the family Percidae. The perch, of which three species occur in different geographical areas, lend their name to a large order of vertebrates: the Per ...
,
ruffe The Eurasian ruffe (''Gymnocephalus cernua''), also known as ruffe or pope, is a freshwater fish found in temperate regions of Europe and northern Asia. It has been introduced into the Great Lakes of North America, reportedly with unfortuna ...
,
carp bream The common bream, freshwater bream, bream, bronze bream, carp bream or sweaty bream (''Abramis brama''), is a European species of freshwater fish in the family Cyprinidae. It is now considered to be the only species in the genus ''Abramis''. ...
, lake salmon,
pike Pike, Pikes or The Pike may refer to: Fish * Blue pike or blue walleye, an extinct color morph of the yellow walleye ''Sander vitreus'' * Ctenoluciidae, the "pike characins", some species of which are commonly known as pikes * ''Esox'', genus of ...
and somewhat less ide, graylings, common dace, common bleak and
crucian carp The crucian carp (''Carassius carassius'') is a medium-sized member of the common carp family Cyprinidae. It occurs widely in northern European regions. Its name derives from the Low German ''karusse'' or ''karutze'', possibly from Medieval L ...
.Lake Onega (Karelia). Fishing in the Onega. Fish and their habitat
. Vedlozero.ru. Retrieved on 2013-03-22.
Whereas there is no regular passenger service on the lake, there are several tourist trips per day along the routes of Petrozavodsk–Kizhi, Petrozavodsk–Velikaya Guba and Petrozavodsk–Shala. They are run by hydrofoil and
motor ship A motor ship or motor vessel is a ship propelled by an internal combustion engine, usually a diesel engine. The names of motor ships are often prefixed with MS, M/S, MV or M/V. Engines for motorships were developed during the 1890s, and by th ...
s and are used for passenger transport as well.Intercity (Water transport Petrozavodsk and Karelia)
Ptz-trans.ru. Retrieved on 2013-03-22.
Traffic Information on passenger vessels. Kizhi about. Valaam, Fr. Solovki
. Ticrk.ru. Retrieved on 2013-03-22.
In addition, passenger ships go on the route Petrozavodsk – Shala.Vesti Karelia. Comets go to Shalu
. Vesti.karelia.ru. Retrieved on 2013-03-22.
Sailing is a popular activity on the lake and there is a sailing club in Petrozavodsk. Since 1972, every year at the end of July the lake has hosted the largest
regatta Boat racing is a sport in which boats, or other types of watercraft, race on water. Boat racing powered by oars is recorded as having occurred in ancient Egypt, and it is likely that people have engaged in races involving boats and other wate ...
in Russia ("russian: Онежская парусная регата") which is the Russian Open Championship in the Russian class of
Cruisers Yachts Cruisers Yachts is a brand of pleasure boats owned by MarineMax. The company builds boats ranging from 33 feet - 60 feet, and is headquartered in Oconto, Wisconsin. The company was one of the first boat builders to utilize the Volvo Penta I ...
"Open800". The regatta has international status.The Onego Regatta
Gov.karelia.ru. Retrieved on 2013-03-22.


History and places


Cities

The largest city on the lake is
Petrozavodsk Petrozavodsk (russian: Петрозаводск, p=pʲɪtrəzɐˈvotsk; Karelian, Vepsian and fi, Petroskoi) is the capital city of the Republic of Karelia, Russia, which stretches along the western shore of Lake Onega for some . The population ...
– the capital of
Republic of Karelia The Republic of Karelia (russian: Респу́блика Каре́лия, Respublika Kareliya; ; krl, Karjalan tašavalta; ; fi, Karjalan tasavalta; vep, Karjalan Tazovaldkund, Ludic: ''Kard’alan tazavald''), also known as just Karelia (ru ...
(about 270,000 citizens) founded in 1703 by
Peter I Peter I may refer to: Religious hierarchs * Saint Peter (c. 1 AD – c. 64–88 AD), a.k.a. Simon Peter, Simeon, or Simon, apostle of Jesus * Pope Peter I of Alexandria (died 311), revered as a saint * Peter I of Armenia (died 1058), Catholico ...
to exploit the natural ore deposits. Petrozavodsk area contains a large number of historical monuments, such as Architectural ensemble Round Square (end of 18th century) and gymnasium building of 1790. The embankment of Lake Onega contains a series of sculptures, many of which were presented as gifts from the twin cities. Kondopoga is known from 1495 and contains the Uspenskaya (Assumption) Church built in 1774. This construction is one of the tallest wooden churches of the Russian North. There are two carillons in the city, with 23 and 18 bells, also there is an indoor ice sports arena accommodating 1,850 spectators and a Palace of Arts with an organ.Pearl of Karelia – Kondopoga
Kondopoga.ru. Retrieved on 2013-03-22.
Medvezhyegorsk city was founded in 1916 and from 1931 became the construction base of the White Sea – Baltic Canal. Between 1703–1710 and 1766–1769 a factory was operating on the site of the city. During the World War II, for three years this area was occupied by the Finnish forces and was a place of busy military activities.


Kizhi island

The main attraction of the lake is the island of Kizhi in the northern part of the lake, which is a State Historical, Architectural and Ethnographic Preservation Area. There are 89 wooden architectural monuments of the 15th to 20th centuries on the island. The most remarkable of those is
Kizhi Pogost Kizhi Pogost (russian: Кижский погост) is a historical site dating from the 17th century on Kizhi island. The island is located on Lake Onega in the Republic of Karelia (Medvezhyegorsky District), Russia. The pogost is the area inside ...
of the early 18th century which consists of a summer church with 22 domes, a winter church with nine domes, and a belfry. The pogost was included in the list of
UNESCO The United Nations Educational, Scientific and Cultural Organization is a List of specialized agencies of the United Nations, specialized agency of the United Nations (UN) aimed at promoting world peace and security through international coope ...
World Heritage A World Heritage Site is a landmark or area with legal protection by an international convention administered by the United Nations Educational, Scientific and Cultural Organization (UNESCO). World Heritage Sites are designated by UNESCO for ...
sites in 1990. In the summer, there are daily boat connections to the island from Petrozavodsk.


Onega petroglyphs

Another attraction of the lake are the Onega
petroglyph A petroglyph is an image created by removing part of a rock surface by incising, picking, carving, or abrading, as a form of rock art. Outside North America, scholars often use terms such as "carving", "engraving", or other descriptions ...
s (rock engravings). They are located on the eastern coast of the lake and date back to between the 4th and 2nd millennia BC. There are about 1,200 petroglyphs scattered over the area including several capes, such as Besov Nos (see map above). The engravings are deep and depict animals, people, boats and geometrical shapes of circular and crescent shapes. In 2021, the petroglyphs were inscribed on the
UNESCO The United Nations Educational, Scientific and Cultural Organization is a List of specialized agencies of the United Nations, specialized agency of the United Nations (UN) aimed at promoting world peace and security through international coope ...
World Heritage List A World Heritage Site is a landmark or area with legal protection by an international convention administered by the United Nations Educational, Scientific and Cultural Organization (UNESCO). World Heritage Sites are designated by UNESCO for ...
for its significant artistic qualities that testify the creativity of the Stone Age.


Others

Many other historical monuments are scattered around the lake. They include Svyat-Uspensky monastery on the cape of Murom, on the eastern shore of the lake. The monastery was founded in 1350, closed in 1918 and restored in 1991.Sights and monuments
Official Web portal of Karelia Government


References


External links

* {{Authority control LOnega Onega Onega Onega