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The Baikal seal, Lake Baikal seal or nerpa (Pusa sibirica) is a species of earless seal endemic to Lake Baikal in Siberia, Russia. Like the Caspian seal , it is related to the Arctic ringed seal . The Baikal seal is one of the smallest true seals and the only exclusively freshwater pinniped species. [ 2 ]
In July 2008, Russia sent two small submersibles, Mir-1 and Mir-2, to descend 1,592 m (5,223 ft) to the bottom of Lake Baikal to conduct geological and biological tests on its unique ecosystem. Although originally reported as being successful, they did not set a world record for the deepest freshwater dive, reaching a depth of only 1,580 m ...
Freshwater seals are pinnipeds which live in freshwater bodies. The group is paraphyletic in nature, the uniting factor being the environment in which these pinnipeds live. The vast majority of all modern seals live solely in saltwater habitats though this is likely due to the rarity of sufficiently large freshwater bodies rather than the ...
This pinniped was isolated in freshwater lakes and separated from the Arctic ringed seal as a result of the isostatic rebound of the region following the end of the Weichselian Glaciation. [2] It is related to the even smaller population of Saimaa ringed seals in Lake Saimaa, a lake that flows into Ladoga through the Vuoksi River.
A typical diet for Caspian seals found in the northern Caspian sea consists of crustaceans and various fish species, such as Clupeonella engrauliformis, C. grimmi, C. caspia, Gobiidae, Rutilus caspicus, Atherina boyeri, and Sander lucioperca. Caspian seal adults eat about 2–3 kg (4–7 lb) of fish a day and almost a metric ton of fish per year.
Range maps are provided wherever possible; if a range map is not available, a description of the pinniped's range is provided. Ranges are based on the IUCN Red List for that species unless otherwise noted. All extinct species or subspecies listed alongside extant species went extinct after 1500 CE, and are indicated by a dagger symbol "†".
Ukrainian intelligence wanted confirmation last autumn that officers of Russia's Federal Security Service (FSB) overseeing the occupation of Kherson were staying in a small hotel on a back street ...
Lake Ladoga [a] 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 in Russia after Lake Baikal, and the 14th largest freshwater lake by area in the world.