Stratigraphy of cladocera in a core from a Yamal peninsula lake (Arctic Russia)

Larisa Frolova, Aisylu Ibragimova, Irina Fedorova

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

15 Scopus citations

Abstract

Arctic regions are most sensitive to global climate change and Arctic waters are an excellent indicator of a current increase in air temperature on the planet. Yamal peninsula is one of a scientifically interesting part of the Arctic. It is a lake-swamp system with unique hydrological, biological, and geochemical particularities. On the one hand, the most part of water objects are under marine influence according to Yamal geographical position, at low level above the see; on the other hand, objects have a strong anthropogenic impact from oil and gas production. We studied a short sediment core from a lake in Pyasedayakha river catchment area. A total of 24 cladoceran taxa, of which 11 are in the family Chydoridae (chydorids), were identified from the 28 samples. The cladoceran stratigraphy was divided into three faunal zones and was characterized by the dominance of Chydoms sphaericus s.l, Bosmina (Eubosmina) sp., Bosmina longirostris and Alona affinis. Cladoceran assemblage changes occurred coincident with the timing of known regional warming and were strongly linked to estimated changes in primary production. Last warming has resulted in increase of the planktonic taxon Bosmina spp.and coincided with a decrease in the littoral taxa Chydorus sphaericus s.l.

Original languageEnglish
Title of host publication16th International Multidisciplinary Scientific GeoConference, SGEM 2016
Subtitle of host publicationNano, Bio and Green - Technologies for a Sustainable Future, Conference Proceedings
PublisherInternational Multidisciplinary Scientific Geoconference
Pages579-585
Number of pages7
Volume2
ISBN (Electronic)9786197105568, 9786197105599, 9786197105629, 9786197105643, 9786197105667, 9786197105698
DOIs
StatePublished - 1 Jan 2016
Event16th International Multidisciplinary Scientific GeoConference: Ecology, Economics, Education and Legislation, SGEM 2016 - Albena, Bulgaria
Duration: 29 Jun 20165 Jul 2016

Conference

Conference16th International Multidisciplinary Scientific GeoConference: Ecology, Economics, Education and Legislation, SGEM 2016
Abbreviated titleSGEM 2016
CountryBulgaria
CityAlbena
Period29/06/165/07/16

Scopus subject areas

  • Geology
  • Geotechnical Engineering and Engineering Geology

Keywords

  • Palaeoclimatology
  • Palaeolimnology
  • Russian Arctic
  • Subfossil Cladocera
  • Yamal peninsula

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