The history of lake Antyukh-Lambina (Kandalaksha coast of the White Sea) based on the study of bottom sediments

Abstract

We performed a comprehensive analysis of the sediment cores from lake Antyukh-Lambina. Studied area is situated on the Kandalaksha coast of the White Sea. The lake is connected to lake Kolvitskoye by a narrow strait. We have identified several stages in the lake development from brackish to freshwater conditions, since the early Holocene. The desalination and increased organic matter in the sediment have led to an increase in diversity chironomid and cladocera species. Using chironomid analysis, we performed quantitative reconstructions of mean July air temperatures and water depths. The results showed that both parameters have increased gradually since the early Holocene.