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Lake Saimaa
Saimaa ( , ; sv, Saimen) is a lake located in the Finnish Lakeland area in southeastern Finland. At approximately , it is the largest lake in Finland, and the fourth largest natural freshwater lake in Europe. The name Saimaa likely comes from a non-Uralic, non-Indo European substrate language. History It was formed by glacial melting at the end of the Ice Age. Major towns on the lakeshore include Lappeenranta, Imatra, Savonlinna, Mikkeli, Varkaus, and Joensuu. About 6000 years ago, ancient Lake Saimaa, estimated to cover nearly at the time, was abruptly discharged through a new outlet. The event created thousands of square kilometres of new residual wetlands. Following this event, the region saw a population maximum in the decades following only to later return to an ecological development towards old boreal conifer forests which saw a decline in population. Topography The Vuoksi River flows from Saimaa to Lake Ladoga. Most of the lake is spotted with islands, and narr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 Bothnia to the west and the Gulf of Finland across Estonia to the south. Finland covers an area of with a population of 5.6 million. Helsinki is the capital and largest city, forming a larger metropolitan area with the neighbouring cities of Espoo, Kauniainen, and Vantaa. The vast majority of the population are ethnic Finns. Finnish, alongside Swedish, are the official languages. Swedish is the native language of 5.2% of the population. Finland's climate varies from humid continental in the south to the boreal in the north. The land cover is primarily a boreal forest biome, with more than 180,000 recorded lakes. Finland was first inhabited around 9000 BC after the Last Glacial Period. The Stone Age introduced several differe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 freshwater lake located in the Republic of Karelia and Leningrad Oblast in northwestern Russia, in the vicinity of Saint Petersburg. It is the largest lake located entirely in Europe, the second largest lake after Baikal in Russia, and the 14th largest freshwater lake by area in the world. '' Ladoga Lacus'', a methane lake on Saturn's moon Titan, is named after the lake. Etymology In one of Nestor's chronicles from the 12th century a lake called "the Great Nevo" is mentioned, a clear link to the Neva River and possibly further to Finnish ''nevo'' 'sea' or ''neva'' 'bog, quagmire'. Evgeny Pospelov: ''Geographical names of the world. Toponymic dictionary.'' Second edition. Astrel, Moscow 2001, pp. 106f. Ancient Norse sagas and Hanseatic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saimaa Ringed Seal
The Saimaa ringed seal (''Pusa hispida saimensis'', Finnish: ''Saimaannorppa'') is a subspecies of ringed seal (''Pusa hispida''). They are among the most endangered seals in the world, having a total population of only about 400 individuals. The only existing population of these seals is found in Lake Saimaa, Finland (hence the name). They have lived in complete isolation from other ringed seal species for around 9,500 years and have diverged into a morphologically and ecologically different subspecies of ringed seal. The population is descended from ringed seals that were separated from the rest when the land rose after the last ice age. This seal, along with the Ladoga seal and the Baikal seal, is one of the few living freshwater seals. Distribution Habitat The Saimaa ringed seal is endemic to their habitat in Lake Saimaa, Finland. The lake spans a circumference of approximately 180km x 140km and It has an area of 443 sq mi (1,147km2) and is relatively shallo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freshwater Seal
The freshwater seals are seals which live in freshwater bodies. The only exclusively freshwater seal species is the Baikal seal, locally named (). The others are the subspecies or colonies of regular saltwater seals. These include two subspecies of ringed seal: the Ladoga seal and the Saimaa ringed seal. Common seals (harbor seals) are known to enter estuaries and freshwater rivers in pursuit of their prey. Colonies of common seals live in some lakes, such as seals of Iliamna Lake, Alaska, trapped there a long time ago. There is also a subspecies called the Ungava seal (''Phoca vitulina mellonae'') that comprises less than 300 individuals landlocked in the fresh water of Lacs des Loups Marins, Petit Lac de Loups Marins, and Lac Bourdel in northern Quebec. California sea lions can also live in fresh water for periods of time, such as near Bonneville Dam, nearly up the Columbia River. In 2004, a healthy sea lion was found sitting on a road in Merced County, California, almost ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pusa Hispida Saimensis Ca 1956
''Pusa'' is a genus of the earless seals, within the family Phocidae. The three species of this genus were split from the genus ''Phoca'', and some sources still give ''Phoca'' as an acceptable synonym for ''Pusa''. The three species in this genus are found in Arctic and subarctic regions, as well as around the Caspian Sea. This includes these countries and regions: Russia, Finland, Scandinavia, Britain, Greenland, Canada, the United States, Iran, Azerbaijan, Kazakhstan, and Japan. Due to changing local environmental conditions, the ringed seals found in the Canadian region has varied patterns of growth. The northern Canadian ringed seals grow slowly to a larger size, while the southern seals grow quickly to a smaller size. Only the Caspian seal species of ''Pusa'' is endangered, while two subspecies of the ringed seal are vulnerable and endangered, Ladoga seal and Saimaa ringed seal The Saimaa ringed seal (''Pusa hispida saimensis'', Finnish: ''Saimaannorppa'') is a subs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olavinlinna
Olavinlinna (also known as St. Olaf's Castle; sv, Olofsborg; german: Olafsburg; literally ''Olof's Castle'') is a 15th-century three-tower castle located in Savonlinna, Finland. It is built on an island in the Kyrönsalmi strait that connects the lakes Haukivesi and Pihlajavesi. It is the northernmost medieval stone fortress still standing. The castle forms a spectacular stage for the Savonlinna Opera Festival, held for the first time in the summer 1912. History The fortress was founded by Erik Axelsson Tott in 1475 under the name ''Sankt Olofsborg'' in an effort to profit from the political turmoil following Ivan III's conquest of the Novgorod Republic. It was sited in Savonia so as to lay claim to the Russian side of the border established by the Treaty of Nöteborg. One of Tott's letters from 1477 includes a passing mention of foreign builders invited to Olofsborg, probably from Reval, where the city fortifications were being extended. It was the first Swedish ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tale Of A Lake
''Tale of a Lake'' ( fi, Järven tarina) is a 2016 Finnish nature documentary film directed by and Kim Saarniluoto. It is about lakes in Finland, the wildlife in them and their place in Finnish folklore. The film features narration by Samuli Edelmann and Johanna Kurkela. Synopsis ''Tale of a Lake'' is a nature documentary mixed with Finnish mythology. A central figure is the female water spirit Ahitar, daughter of the gods Ahti and Vellamo. The film passes through the seasons of a year and portrays Finnish lakes and their wildlife, discussing how the terrain and animals feature in folklore. Production ''Tale of a Forest'' was produced by for with support from the Finnish Film Foundation, Yle, , the Raija and Ossi Tuuliainen Foundation and Creative Europe Creative Europe is a European Union programme for the cultural and creative sectors. In its first phase, going from 2014 to 2020, it had a budget of € 1.47 billion, which were expanded to € 2.44 billion in its s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eutrophication
Eutrophication is the process by which an entire body of water, or parts of it, becomes progressively enriched with minerals and nutrients, particularly nitrogen and phosphorus. It has also been defined as "nutrient-induced increase in phytoplankton productivity". Water bodies with very low nutrient levels are termed oligotrophic and those with moderate nutrient levels are termed mesotrophic. Advanced eutrophication may also be referred to as dystrophic and hypertrophic conditions. Eutrophication can affect freshwater or salt water systems. In freshwater ecosystems it is almost always caused by excess phosphorus. In coastal waters on the other hand, the main contributing nutrient is more likely to be nitrogen, or nitrogen and phosphorus together. This depends on the location and other factors. When occurring naturally, eutrophication is a very slow process in which nutrients, especially phosphorus compounds and organic matter, accumulate in water bodies. These nutrients ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Pyhäselkä
Pyhäselkä is a lake in 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 Bot .... It forms the northernmost part of the Saimaa lake system. References External links * Saimaa Lakes of Rääkkylä Lakes of Liperi {{EasternFinland-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pihlajavesi (Saimaa)
Pihlajavesi is a lake in 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 Bot .... The area of the lake is making it the sixth largest lake in the country. Pihlajavesi is the second-largest basin in the complex Saimaa lake system. Pihlajavesi lacks large open lake areas but has more islands than any other lake in Finland. References External links * Saimaa Nature of Savonlinna {{EasternFinland-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yövesi
Yövesi (; literally "night water") is a sub-lake of the lake Saimaa in eastern Finland. It is located in Mikkeli municipality in the Southern Savonia region. Part of the Saimaa lake system, it borders on the system of Pihlajavesi to the east. The deepest point of the whole Saimaa is in Yövesi, in Käenniemenselkä open area. The Astuvansalmi rock paintings are situated in the northern shore of Yövesi. The critically endangered fish Arctic char The Arctic char or Arctic charr (''Salvelinus alpinus'') is a cold-water fish in the family Salmonidae, native to alpine lakes and arctic and subarctic coastal waters. Its distribution is Circumpolar North. It spawns Spawn is the eggs a ... lives in Yövesi. Fishing of Arctic char is totally prohibited. References Saimaa Lakes of Mikkeli {{EasternFinland-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haukivesi
Haukivesi is a lake in southeastern Finland and a part of the Saimaa lake system. Haukivesi is the central basin of the system, collecting 80% of the water that eventually flows into Lake Ladoga through River Vuoksi. Its area is ( 8th). Like other lakes in the system, it has a convoluted shoreline with numerous islands and is divided into a number of smaller regions (''selkä'') such as Siitinselkä, Saviluoto, Tahkoselkä, Vuoriselkä, Kuokanselkä, Kuivaselkä, Heposelkä, Peonselkä, Tuunaanselkä, Hiekonselkä, Varparannanselkä, and Iso-Haukivesi. Haukivesi stretches from Varkaus to Savonlinna in a northeast–southwest direction. The northern part is shallow, at less than , but deepens toward the southeast, up to at Kuivaselkä.Haukivesi Retrieved 2014-03-09. Most water flows from the east, through Tappuvirta, Oravikoski and Haponlahti locks. A sm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
