This dataset is a csv file of abundance data of chironomid larvae subfossils isolated from a lake sediment core collected on the Kamchatka Peninsula, Russian Far East. The lake, Pechora Lake (unofficial name; 59°17.6′N, 163°07.8′E), is a small lake (approximately 50 x 300 m) located about 2 km from the Bering Sea coast, near the town of Ossora in north-eastern Kamchatka. The core was dated using tephrochronology and radiocarbon dating; details of the methods used to correlate and date the cores, together with the age-depth modelling are given in the following reference: G. Plunkett, S.E. Coulter, V.V. Ponomareva, M. Blaauw, A. Klimaschewski and D. Hammarlund (2015). Distal tephrochronology in volcanic regions: Challenges and insights from Kamchatkan lake sediments. Global and Planetary Change 134, 26–40

The chironomids were analysed, together with pollen, diatoms and selected geochemical parameters to examine the response of the lake to Holocene environmental and climate change. The chironomid data were also used to provide estimates of summer temperatures. The data comprise core depth and percentage abundance data for the core. Further details of the study site, results and their interpretation are given in:

E. Andrén, A. Klimaschewski, A.E. Self, N. St. Amour, A.A. Andreev, K.D. Bennett, D.J. Conley, T.W.D. Edwards, N. Solovieva, D. Hammarlund (2015). Holocene climate and environmental change in north-eastern Kamchatka (Russian Far East), inferred from a multi-proxy study of lake sediments. Global and Planetary Change 134, 41–54