Presentation on the topic Lake Ladoga mineral resources. Presentation on the topic of Lake Ladoga. Fauna of the shores and lake bottom of Lake Ladoga

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1. Why did I choose this topic?
2. Features of Lake Ladoga.
3. Rivers.
4. Islands.
5. Animal world.
6. Curious situations associated with Lake Ladoga.
7. Conclusion.

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Why did I choose this topic?

I am interested in this topic, due to the fact that Lake Ladoga is located in Leningrad region and is the most large lake Europe. By this lake interesting story, associated with the Patriotic War, and it is also very beautiful. The lake is rich in its flora and fauna.

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Features of Lake Ladoga.

Lake Ladoga is the largest in Europe. The Neva River flows from it and flows into the Gulf of Finland in the Baltic Sea. The lake basin is of glacial origin. About 12 thousand years ago it was finally freed from ice. And now seals continue to live in the lake, who liked it natural conditions

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The area of Ladoga with islands is more than 18 thousand square meters. km. The endless expanses of the lake resemble the sea. In its open part, the shores are not visible, and strong winds often turn it into a raging element, more treacherous than some of the seas. The greatest length of Lake Ladoga is 219 km, and the average width is about 83 km. Average depth - 50 m. Slide 5 The lake is characterized by low mineralization and the water of Ladoga is quite clear. In winter in warm years, then the mass of ice is driven into the Shlisselburg Bay, and from there into the Neva River. Then the second - Ladoga - ice drift passes along it. Ladoga has a stormy temperament, but is not always completely covered by storm winds. Often, increased wind in one part of the lake is combined with almost calm weather in another. Calms are observed here most often in June, but for a very short time. In July and August, in calm weather, mirages occur. Peering into the distance, you suddenly discover islands where there have never been any. Sometimes, instead of an island, the contours of a ship are outlined on the horizon, or real island

rises before our eyes and soars above the water.

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Slide 6 Shipping on Ladoga has been known since ancient times. In the 9th-12th centuries, a water trade route “from the Varangians to the Greeks” passed through it, connecting Northern Rus' with Southern Russia, Scandinavia and the Baltic states with Byzantium. Ladoga acquired its most intensive transport significance in Peter's times. Shipyards and canals began to be built on the shores of the lake. At the beginning of the 18th century, Lake Ladoga was connected with a canal system Upper Volga . But frequent disturbances have long been a huge obstacle to shipping. At the mouth of the Volkhov, sometimes up to 500 ships gathered in anticipation of favorable weather. This was the reason for the construction of bypass canals along the southern shore of Ladoga. During the Great Patriotic War, transportation along Ladoga was the only link between besieged Leningrad and the country. During navigation, transportation was carried out by the Ladoga flotilla, and in winter a route was laid across the ice of the lake.

highway

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, called "Road of Life". In total, during the blockade, about 1 million people were evacuated to the rear through Lake Ladoga and 1.7 million tons of cargo were transported.

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Slide 8 Slide 9 There are about 660 islands on Lake Ladoga with total area 435 km², most of them are concentrated in the northern part of the lake, in the so-called skerry area, as well as in the Valaam (about 50 islands), Western archipelagos and the Mantsinsari group of islands (about 40 islands). The most

large islands

- Riekkalansari, Mantsinsari, Kilpola, Tulolansari, Valaam, Konevets.

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Rocky shore of an island in Lake Ladoga.

Slide 10 Lighthouse on Suho Island in Lake Ladoga. Putsaari - almost

desert island

Lake Ladoga. Island in Lake Ladoga.. Also known is the island of Konevets, on which the monastery is also located.

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The mouth of the Olonka River is Lake Ladoga.

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The lake is fed through the Svir River from Lake Onega, and through the Volkhov River from Lake Ilmen. The rivers Vuoksa, Syas, Nazia and others also flow into it. The Neva is the only river flowing from Lake Ladoga.
Northern part The region is occupied by the Svir Depression - a narrow strip between Lakes Ladoga and Lake Onega, which is a terraced plain of lacustrine-glacial origin, consisting of a series of steps descending to Lake Ladoga. In the middle of the Svir depression the Svir River flows to the west. Almost the entire population in the eastern part of the Svir depression is concentrated directly in the valley of the Svir River.
A significant area is occupied by the Prinevskaya Lowland, covering the valley of the Neva and its tributaries - Tosna and Izhora. It is mostly treeless, with only isolated forest areas remaining in the east. The flat topography and proximity to the surface of waterproof rocks led to large swamps.

The area to the south to Lake Ilmen is occupied by the swampy, wooded Volkhov Lowland, which is crossed from the north by the Volkhov River.

On the shore of Lake Ladoga beyond the Morye River.

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Slide 15 IN last years
On the shores of Lake Ladoga, young Ladoga ringed seals are often found. The species is listed in the Red Book.
At the bottom of Lake Ladoga there are 385 species of invertebrates, which means that this fauna is quite diverse. Most species are in the littoral zone (about 290).
Much less - in the deep-sea part (about 80).

The composition of the benthofauna is dominated by insect larvae (52% of all types of benthofauna), worms are in second place (17%), hydracarines, or water mites, are in third (14%), mollusks are in fourth (9.3%), fifth place belongs to crustaceans (4.5%); other groups of animals - 4.3%.

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Slide 17 About 60 species of fish live in Lake Ladoga, 30 of which are of commercial importance. Ladoga is predominantly a salmon reservoir. Salmonidae include almost all valuable commercial fish: salmon, trout, palia, vendace. Other valuable fish include whitefish, grayling and smelt. About one third of the species living in the lake are cyprinids - roach, ide, bream, and raw fish. Most species live in the lake permanently, and only a few of them, for example, Baltic sturgeon, Baltic salmon, Neva lamprey, sea eel. In the past, sterlet was found in Lake Ladoga, but now it is gone. In recent years, new fish have appeared in the lake - carp and peled. The carp came from Lake Ilmen, where it was released in 1952-1953, and the peled came from the lakes of the Karelian Isthmus, where it has been bred since 1958.
Local lake salmon are extremely valuable fish. Its weight reaches 10 kg. Best places Salmon fisheries are located in the northern part of the lake. However, fishing has been prohibited since 1960, as the salmon stock is recovering very slowly. The reason for the slow resumption is a sharp deterioration in spawning conditions; the rivers are clogged with timber rafting, Vuoksa is polluted, poachers cause great damage on Burnaya, Svir is blocked by hydroelectric dams.

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Palia is found in the northern deep-sea part of Ladoga. Due to the insignificant catches, the palya fishery has almost ceased.
Whitefish in Lake Ladoga are represented by 7 different forms. Four of them are lake (Ludoga, Lake Ladoga, Valaam and Black) and three -
lake-river (Volkhov,
Svirsky and Vuoksinsky).
Vendace and ripus
different from each other
sizes. Small form
called vendace and
everywhere in the lake.
The large form is called
ripus, and it is found mainly
way in the southern part of the lake,
This is where they spawn in the fall.

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It's not about fishing
limited to mining only the most
the best fish breeds, since it is massive
catches of less value may not yield
less economic effect,
than mining a small amount is more
valuable. And first place in catches on
Lake Ladoga occupies a modest
smelt (Arkhiptseva, 1968).
Distributed throughout the lake,
but in the southern part there live more of her
a large form, and in the northern one - a smaller one, similar to smelt.
Pike, which prefers to live in thickets of aquatic vegetation in shallow places, is caught in small quantities.

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Curious situations related to Lake Ladoga

1. Emergency Situations Ministry rescuers rescued 21 fishermen from a broken ice floe on Lake Ladoga

published time: January 20, 2003, 5:44 pm last updated: January 20, 2003, 8:44 pm

2. Graduation ceremony at the Leningrad Zoo. Today the seal Ira will receive freedom. She is the last of 11 seals rescued this spring to remain in a cage. Let us remind you that for the first time this year the employees of the Leningrad Zoo and foreign volunteers were closely involved in the fate of pinnipeds. Due to global warming, the ice in the bay is melting earlier and seals do not have time to feed their cubs. Babies are dying in the hundreds. Now the found seals are brought to the zoo, treated and released. True, each time separation becomes a small tragedy, if not for the animal, then for those who cared for it. The seal Ira was found on April 9, she was dying of hunger. In 3 months, the baby gained approximately four times her weight. And instead of fish porridge, he happily eats herring. True, on the day of departure I was so worried that I refused to eat, and only gnawed on the microphone of St. Petersburg Vesti. Ira will be released today into the native waves of Ladoga on one of the islands of the Valaam archipelago.

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Having such a unique miracle of nature as Lake Ladoga, it is necessary that the attitude towards it change for the better: treat the flora and fauna of the lake more carefully, preserve rare and valuable fish species, fight poaching, help in preserving the Ladoga seal. It is necessary to strictly monitor the pollution of lakes and rivers, industrial enterprises and individual citizens.

Lake LadogaLADOGA
LAKE
this is the largest
freshwater lake
Europe, located on
territories
Leningrad region and
Karelia. Length s
north to south - 219 km,
maximum width -
138 km, depth - from 70 to
260 m in the northern part and from
20 to 70 m in the southern part
lakes.

In the ancient Russian Nestor Chronicle of the 12th century it is mentioned as “lake
Great Nevo" (there is no doubt the connection with the name of the Neva River). IN
In the ancient Scandinavian sagas the lake is called Aldoga (aalto - wave).
Since the beginning of the 13th century, the name Lake Ladoga, formed from
name of the city Ladoga.

Through the Svir River, Lake Ladoga is connected to Lake Onega, and across the river
Volkhov - with Lake Ilmen. The Neva River is the only one that flows from
Lake Ladoga. 32 rivers flow into it. Ladoga area with more than 18 islands
thousand sq. km. Northern Shores lakes are rugged, high and rocky, stacked
crystalline rocks.
The southern shores of the lake are low, swampy, and the bottom around them is flat.
The total volume of water in the lake is huge - 900 cubic km.
The lake basin is of glacial origin. About 12 thousand years ago she
finally freed from the ice.

There are about 660 islands on Ladoga, large and
little ones. And almost all of them are on
north of the lake. The biggest -
Valaam Islands or Valaam
archipelago. There is the SpasoPreobrazhensky Valaam Monastery.
At one time, it was his Russian monks
the Orthodox Church sent
spread the Christian faith among
peoples of Alaska. So amazing
pictures of nature, like on Valaam, are not
you will find nowhere else in Europe:
a bunch of steep cliffs, going to
height and depth, islands, capes,
coves.

Lake Ladoga is home to trout, salmon, whitefish, vendace, pike perch,
pike, perch, burbot, bream, roach, smelt, bluegill, silver bream. In total more than 53 species
fish Ladoga salmon reaches a weight of 10 kg. The most commercial fish on
Ladoga - pike perch. Reaches 8 kg of weight.
The only representative of marine mammals is found on Ladoga,
which lives in a freshwater lake - the Ladoga seal. She is listed in
Red Book of Russia. The average life expectancy of the Ladoga seal is 30–35
years. When Ladoga is free of ice, animals come out onto land to rest and bask.
under the sun on the coast of the islands of the Valaam archipelago. These islands are
to a specially protected area, so to visit them you need to get
permission.

Story
Across Lake Ladoga from Scandinavia through Eastern Europe to Byzantium from IX
century, the waterway “From the Varangians to the Greeks” passed through.
During the Great Patriotic War in 1941-1944, most
the coast of Lake Ladoga was occupied by German-Finnish troops.
From September 1941 to
March 1943 along the southwestern part of the lake
the road passed
life that connected
besieged Leningrad with
"mainland". By
The road of life to the city
delivered
necessary products
and things were evacuated
of people.

Conclusion

CONCLUSION
Lake Ladoga is a unique natural and historical object,
located on the territory of our country, having important
economic importance: the lake provides people with water,
used for electricity generation, shipping, fishing
fishing, is the habitat of many animal organisms and fish, and
its shores are a place for human recreation.

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Contents 1. Why did I choose this topic? 2. Features of Lake Ladoga. 3. Rivers. 4. Islands. 5. Animal world. 6. Curious situations associated with Lake Ladoga. 7. Conclusion.

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Why did I choose this topic? I am interested in this topic due to the fact that Lake Ladoga is located in the Leningrad region and is the largest lake in Europe. This lake has an interesting history connected with the Patriotic War, and it is also very beautiful. The lake is rich in its flora and fauna.

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Features of Lake Ladoga. Lake Ladoga is the largest in Europe. The Neva River flows from it and flows into the Gulf of Finland in the Baltic Sea. The lake basin is of glacial origin. About 12 thousand years ago it was finally freed from ice. And now seals continue to live in the lake, who liked its natural conditions. The area of Ladoga with islands is more than 18 thousand square meters. km. The endless expanses of the lake resemble the sea. In its open part, the shores are not visible, and strong winds often turn it into a raging element, more treacherous than some of the seas. The greatest length of Lake Ladoga is 219 km, and the average width is about 83 km. Average depth - 50 m.

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The lake is characterized by low mineralization and the water of Ladoga is quite clear. During warm years in winter, the lake does not completely freeze, and the open central part of the lake remains ice-free. The thickness of the ice on the lake, depending on the severity of winter, ranges from 50 to 110 cm. The ice reaches its greatest thickness in late March - early April. The lake begins to open in April near the southern shore and in the skerries of the northern part. If strong northern winds blow, then the mass of ice is driven into the Shlisselburg Bay, and from there into the Neva River. Then the second - Ladoga - ice drift passes along it. Ladoga has a stormy temperament, but is not always completely covered by storm winds. Often, increased wind in one part of the lake is combined with almost calm weather in another. Calms are observed here most often in June, but for a very short time. In July and August, in calm weather, mirages occur. Peering into the distance, you suddenly discover islands where there have never been any. Sometimes, instead of an island, the contours of a ship are outlined on the horizon, or a real island rises before our eyes and hovers above the water.

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Shipping on Ladoga has been known since ancient times. In the 9th-12th centuries, a water trade route “from the Varangians to the Greeks” passed through it, connecting Northern Rus' with Southern Russia, Scandinavia and the Baltic states with Byzantium. Ladoga acquired its most intense transport significance in Peter's times. Shipyards and canals began to be built on the shores of the lake. At the beginning of the 18th century, Lake Ladoga was connected to the Upper Volga by a canal system. But frequent disturbances have long been a huge obstacle to shipping. At the mouth of the Volkhov, sometimes up to 500 ships gathered in anticipation of favorable weather. This was the reason for the construction of bypass canals along the southern shore of Ladoga. During the Great Patriotic War, transportation along Ladoga was the only link between besieged Leningrad and the country. During navigation, transportation was carried out by the Ladoga flotilla, and in winter, a road was built across the ice of the lake, called the “Road of Life.” In total, during the blockade, about 1 million people were evacuated to the rear through Lake Ladoga and 1.7 million tons of cargo were transported.

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The shores of the lake are sparsely populated. The cities on the coast are ancient, but small - Priozersk, Sortavala, Novaya Ladoga, Shlisselburg. Rest settlements(about 90) are small, these are villages of lumberjacks, fishermen and watermen.

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There are about 660 islands on Lake Ladoga with a total area of 435 km², most of them are concentrated in the northern part of the lake, in the so-called skerry area, as well as as part of the Valaam (about 50 islands), Western archipelagos and the Mantsinsari group of islands (about 40 islands) . The largest islands are Riekkalansari, Mantsinsari, Kilpola, Tulolansari, Valaam, Konevets. Rocky shore of an island in Lake Ladoga.

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Lighthouse on Suho Island in Lake Ladoga. Putsaari is an almost uninhabited island in Lake Ladoga. Island in Lake Ladoga. The most famous on Lake Ladoga are the Valaam Islands - an archipelago of about 50 islands with an area of about 36 km², due to the location of the Valaam Monastery on the main island of the archipelago. Also known is the island of Konevets, on which the monastery is also located.

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The lake is fed through the Svir River from Lake Onega, and through the Volkhov River from Lake Ilmen. The rivers Vuoksa, Syas, Nazia and others also flow into it. The Neva is the only river flowing from Lake Ladoga. The northern part of the region is occupied by the Svirskaya Depression - a narrow strip between Lakes Ladoga and Onega, which is a terraced plain of lacustrine-glacial origin, consisting of a series of steps descending to Lake Ladoga. In the middle of the Svir depression the Svir River flows to the west. Almost the entire population in the eastern part of the Svir depression is concentrated directly in the valley of the Svir River. A significant area is occupied by the Prinevskaya Lowland, covering the valley of the Neva and its tributaries - Tosna and Izhora. It is mostly treeless, with only isolated forest areas remaining in the east. The flat topography and proximity to the surface of waterproof rocks led to large swamps. The space to the south to Lake Ilmen is occupied by the swampy, wooded Volkhov Lowland, which is crossed from the north by the Volkhov River. On the shore of Lake Ladoga beyond the Morye River.

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In recent years, Ladoga ringed seal cubs have often been found on the shores of Lake Ladoga. The species is listed in the Red Book. At the bottom of Lake Ladoga there are 385 species of invertebrates, which means that this fauna is quite diverse. Most species are in the littoral zone (about 290). Much less - in the deep-sea part (about 80). The composition of the benthofauna is dominated by insect larvae (52% of all types of benthofauna), worms are in second place (17%), hydracarines, or water mites, are in third (14%), mollusks are in fourth (9.3%), fifth place belongs to crustaceans (4.5%); other groups of animals - 4.3%.

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Lake Ladoga is home to about 60 species of fish, 30 of which are of commercial importance. Ladoga is predominantly a salmon reservoir. Salmonidae include almost all valuable commercial fish: salmon, trout, palia, vendace. Other valuable fish include whitefish, grayling and smelt. About one third of the species living in the lake are cyprinids - roach, ide, bream, and raw fish. Most species live in the lake permanently, and only a few of them, for example, Baltic sturgeon, Baltic salmon, Neva lamprey, conger eel, occasionally enter Ladoga from the Baltic and the Gulf of Finland. In the past, sterlet was found in Lake Ladoga, but now it is gone. In recent years, new fish have appeared in the lake - carp and peled. Carp came from Lake Ilmen, where it was released in 1952-1953, and peled - from the lakes of the Karelian Isthmus, where it has been bred since 1958. Local lake salmon is an extremely valuable fish. Its weight reaches 10 kg. The best salmon fishing spots are in the northern part of the lake. However, fishing has been prohibited since 1960, as the salmon herd is recovering very slowly. The reason for the slow resumption is a sharp deterioration in spawning conditions; the rivers are clogged with timber rafting, Vuoksa is polluted, poachers cause great damage on Burnaya, Svir is blocked by hydroelectric dams.

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Pike perch is one of the main fishing grounds on Ladoga. It lives everywhere in the lake, but especially readily in the southern shallow part. Here, in the south, are its largest fishing concentrations. Individual specimens of pike perch weigh 8 kg. Bream, despite its good nutritional and taste qualities, is not of great importance in Ladoga fishing. It lives mainly in the southern region of the lake and in its southern bays. Palia is found in the northern deep-sea part of Ladoga. Due to the insignificant catches, the palya fishery has almost ceased. Whitefish in Lake Ladoga are represented by 7 different forms. Four of them are lake (Ludoga, Lake Ladoga, Valaam and Black) and three are lake-river (Volkhov, Svir and Vuoksa). Vendace and ripus differ from each other in size. The small form is called vendace and is ubiquitous in the lake. The large form is called ripus, and it is found mainly in the southern part of the lake, where it spawns in the fall.

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In fishing, the matter is not limited to the extraction of only the best species of fish, since mass fishing of less valuable ones can give no less economic effect than the extraction of small quantities of more valuable ones. And the first place in catches on Lake Ladoga is occupied by the modest smelt (Arkhiptseva, 1968). It is distributed throughout the lake, but its larger form lives in the southern part, and the smaller one, similar to smelt, lives in the northern part. Pike, which prefers to live in thickets of aquatic vegetation in shallow places, is caught in small quantities.

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Curious situations associated with Lake Ladoga 1. Rescuers from the Ministry of Emergency Situations removed 21 fishermen from a broken ice floe on Lake Ladoga publication time: January 20, 2003, 17:44 last update: January 20, 2003, 20:44 2. Graduation at the Leningrad Zoo . Today the seal Ira will receive freedom. She is the last of 11 seals rescued this spring to remain in a cage. Let us remind you that for the first time this year the employees of the Leningrad Zoo and foreign volunteers were closely involved in the fate of pinnipeds. Due to global warming, the ice in the bay is melting earlier and seals do not have time to feed their cubs. Babies are dying in the hundreds. Now the found seals are brought to the zoo, treated and released. True, each time separation becomes a small tragedy, if not for the animal, then for those who cared for it. The seal Ira was found on April 9, she was dying of hunger. In 3 months, the baby gained approximately four times her weight. And instead of fish porridge, he happily eats herring. True, on the day of departure I was so worried that I refused to eat, and only gnawed on the microphone of St. Petersburg Vesti. Ira will be released today into the native waves of Ladoga on one of the islands of the Valaam archipelago. 03-07-2008

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Conclusion Having such a unique miracle of nature as Lake Ladoga, it is necessary for the attitude towards it to change for the better: treat the flora and fauna of the lake more carefully, preserve rare and valuable fish species, fight poaching, and help preserve the Ladoga seal. It is necessary to strictly monitor the pollution of lakes and rivers, industrial enterprises and individual citizens.

Lake Ladoga is the largest freshwater lake in Europe, its length is 219 km and its greatest width is 138 km. The northern and eastern parts of the reservoir belong to Karelia. Western, southeastern and South coast Lake Ladoga is located in the Leningrad region. The lake holds 908 km³ of water. Replenishment water resources occurs mainly due to 35 inflowing rivers. Only one river flows out of Ladoga - the Neva.

For Russia, Ladoga has always had strategic importance: in the 9th century, an important part of the waterway “from the Varangians to the Greeks” passed through its expanses. Documentary mention of the “great Lake Nevo” (as Lake Ladoga was called in the old days) was first found in the ancient Russian chronicle, dated 1228. The first capital before Kievan Rus was located near the confluence of the Volkhov River into Lake Ladoga.

The bottom of Ladoga to this day preserves numerous interesting and valuable artifacts dating back to various time periods. The ancient Vikings and soldiers of the Northern and Great Patriotic Wars left their mark. Of course, first of all, Lake Ladoga hides traces of the Second World War. A striking example of this is “Death Bay”. In this place in August 1941, an urgent evacuation of the Soviet rifle and motorized divisions took place. For two weeks, under fierce artillery and mortar fire, the ships removed the fighters from the shore. The small bay was literally bombarded with shells. Until now, the entire bottom of the lake is covered with a layer of shell casings, shell fragments and iron.

Many areas near Lake Ladoga have been preserved in their pristine beauty. In the picturesque faults of harsh rocks, one can see ancient history this region. Islands, rocky shoals, mountain slopes covered with pine wilds were once covered by the waters of a prehistoric sea that stretched in the north to the ocean.

Ladoga lake

Completed by: Nesterova Irina 21 school

Lake Ladoga is a unique natural system in North-West Russia.

Initially the lake was called Nevo. But since this name characterized the main water artery of St. Petersburg, it was decided to rename it Ladoga.

Features of Lake Ladoga

Ladoga lake- the largest in Europe. The Neva River flows from it and flows into the Gulf of Finland in the Baltic Sea. The lake basin is of glacial origin. About 12 thousand years ago it was finally freed from ice. And now seals continue to live in the lake, who liked its natural conditions.

Features of Lake Ladoga

Area more than 18 thousand square meters. km. The endless expanses of the lake resemble the sea. In its open part, the shores are not visible, and strong winds often turn it into a raging element, more treacherous than some of the seas.

The greatest length of Lake Ladoga is 219 km, and the average width is about 83 km. Average depth - 50 m.

Climate

The climate over Lake Ladoga is temperate, transitional from temperate continental to temperate maritime

There are an average of 62 sunny days per year. Therefore, for most of the year, days with cloudy, cloudy weather and diffuse lighting predominate.

Lake Ladoga storage solar energy

It can be said without exaggeration. Solar energy, penetrating into the water column, sets the water masses of the lake in motion. Even during short periods of calm, when the surface of Ladoga is mirror-immobile, at depth there is a movement of water masses both horizontally and vertically.

This phenomenon contributes to the redistribution of heat in Ladoga, gradually enriching deeper layers with it. The accumulation of solar heat and its distribution in water during the day, season, and year determines the temperature regime of the lake.

Length of day

Varies from 5 hours 51 minutes on the winter solstice to 18 hours 50 minutes on the summer solstice. The so-called “white nights” are observed over the lake, occurring on May 25-26, when the sun drops below the horizon by no more than 9°, and the evening twilight practically merges with the morning. The white nights end on July 16-17.

Rivers

35 rivers flow into Lake Ladoga The largest river, which flows into it is the Svir River, which carries water from Lake Onega into it. Water also enters the lake through the Vuoksa River from Lake Saimaa, and through the Volkhov River from Lake Ilmen. The Morye, Avloga, and Burnaya rivers also flow into it.

Islands of Lake Ladoga

There are about 660 islands on Lake Ladoga with a total area of 435 km², most of them are concentrated in the northern part of the lake, in the so-called skerry area, as well as as part of the Valaam (about 50 islands), Western archipelagos and the Mantsinsari group of islands (about 40 islands). The largest islands are Riekkalansari, Mantsinsari, Kilpola, Tulolansari, Valaam, Konevets.

Putsaari is an almost uninhabited island in Lake Ladoga.

Lighthouse on Suho Island in Lake Ladoga.

The most famous on Lake Ladoga are the Valaam Islands - an archipelago of about 50 islands with an area of about 36 km², due to the location of the Valaam Monastery on the main island of the archipelago. Also known is the island of Konevets, on which the monastery is also located.

Island in Lake Ladoga.

Fauna of the shores and lake bottom of Lake Ladoga

In recent years, Ladoga ringed seal cubs have often been found on the shores of Lake Ladoga. The species is listed in the Red Book.

At the bottom of Lake Ladoga there are 385 species of invertebrates, which means that this fauna is quite diverse. Most species are in the littoral zone (about 290).

Much less - in the deep-sea part (about 80).

Fishes of Lake Ladoga

About 60 species of fish live in Lake Ladoga, 30 of which are of commercial importance. Most species live in the lake permanently, and only a few of them, for example, Baltic sturgeon, Baltic salmon, Neva lamprey, conger eel, occasionally enter Ladoga from the Baltic and the Gulf of Finland. In recent years, new fish have appeared in the lake - carp and peled.

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