Ladoga seal Ladoga seal The Ladoga ringed seal (; Pusa hispida ladogensis), is a freshwater subspecies of the ringed seal ("Pusa hispida") which are found entirely in Lake Ladoga in northwestern Russia. The subspecies evolved during the last ice age, about 11,000 years ago. As the glaciers retreated and water levels changed, the Baltic ringed seal (including Ladoga seals) was trapped in freshwater lakes and separated from the Arctic ringed seal. 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. The adult Ladoga seal grows to
Finnish Ladoga Naval Detachment Germany transferred four MAL-type ferries - "M-31", "M-32", "M-33" and "M-34" - originally intended for use on Lake Peipus, to the Finns on Ladoga. The Finnish Navy also transferred several small run-down naval vessels to the lake, the motor torpedo boats "Syöksy", and "Vinha", which were no longer in adequate condition to carry torpedoes. Lake remained mostly quiet until Soviet offensive of 1944 started. While Finnish naval forces on the lake remained passive during the Soviet landings at Tuloksa on 23 June they did play key role in facilitating the Finnish evacuations from the eastern shore of the lake Ladoga.