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
Ladoga Canal Ladoga Canal The Ladoga Canal (, "Ladozhsky Canal") is a historical water transport route, now situated in Leningrad Oblast, linking the Neva and the Svir River so as to bypass the stormy waters of Lake Ladoga which lies immediately to the northwest. It is about long and comprises two distinct but overgrown canals, Old Ladoga Canal (built in 1719–1810, previously known as Peter the First Canal) and New Ladoga Canal (built in 1866–1883), running in parallel from Sviritsa on the Svir through Novaya Ladoga on the Volkhov to Shlisselburg on the Neva. The Ladoga Canal was one of the first