Ladoga seal activities. The Ladoga seal is listed as an Appendix II species under the Bern Convention and also included in the Red Data Book of the Russian Federation. 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
Staraya Ladoga river"), was rendered as "Aldeigja" in Old Norse and later as "Ladoga" in Old East Slavic. "Staraya" is Russian for "Old". According to the Hypatian Codex that was created at the end of the 13th century, the legendary Varangian leader Rurik arrived at Ladoga in 862 and made it his capital. Rurik later moved to Novgorod and his successors then to Kiev where foundations for the powerful state of Kievan Rus' were laid. There are several huge kurgans, or royal funerary barrows, at the outskirts of Ladoga. One of them is said to be Rurik's grave, and another one—that of