Valieva, Elvira A; Nigmatullin, Niyaz M; Nigamatzyanova, Gulnara R; Frolova, Anastasia A; Nurgaliev, Danis K; Frolova, Larisa A (2023): Diatoms from the bottom sediments of Lake Shira (Khakassia, Russia) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.954955
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Published: 2023-01-30 • DOI registered: 2023-02-28
Abstract:
Diatoms are good indicators of a variety of lake water conditions including salinity, pH, light availability, temperature and nutrient levels, but diatoms as palaeoindicators are poorly studied in the Lake Shira. Our research on the species composition and ecological parameters of diatoms provide additional data for the regional databases and contributes to improving the accuracy of paleoecological reconstructions. In this study the diatom results of analysis a 528 cm long continuous sediments core from the Lake Shira (Khakassia, Russia) are presented. The core was collected in August 2020 from central part of the lake from a depth of 24 m. 39 samples were investigated by us for diatom analysis. Diatoms were found only in 13 samples. Diatom analysis of samples revealed 30 taxa, belonging to 19 genera. The analysis of the ecological structure of the diatom flora of the sediment core sample from the lake under study shows that it is dominated by the cosmopolitan representatives of benthic and planktonic-benthic, indifferent to salinity and halophiles organisms giving preference to the alkaline environmental conditions. The prevalence of Handmannia comta (Ehrenberg) Kociolek & Khursevich diatom in sediments have been established.
Funding:
Russian Science Foundation, grant/award no. 22-47-08001: The general picture of climate change and its impact on the environment and society in the northern and central parts of the Eurasian continent since the last glaciation: reconstruction based on geological and paleobiological data
Coverage:
Latitude: 54.521667 * Longitude: 90.178611
Date/Time Start: 2020-08-12T00:00:00 * Date/Time End: 2020-08-12T00:00:00
Minimum DEPTH, sediment/rock: 0.38 m * Maximum DEPTH, sediment/rock: 5.28 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Valieva, Elvira A | |||
| 2 | Sample ID | Sample ID | Valieva, Elvira A | |||
| 3 | Core | Core | Valieva, Elvira A | |||
| 4 | Location | Location | Valieva, Elvira A | |||
| 5 | DEPTH, sediment/rock | Depth sed | m | Valieva, Elvira A | Geocode | |
| 6 | Amphora pediculus | A. pediculus | # | Valieva, Elvira A | Counting, diatoms | (Kutzing) Grunow |
| 7 | Amphora sp. | Amphora sp. | # | Valieva, Elvira A | Counting, diatoms | |
| 8 | Aulacoseira sp. | Aulacoseira sp. | # | Valieva, Elvira A | Counting, diatoms | |
| 9 | Cocconeis euglypta | C. euglypta | # | Valieva, Elvira A | Counting, diatoms | Ehrenberg |
| 10 | Cocconeis placentula | C. placentula | # | Valieva, Elvira A | Counting, diatoms | Ehrenberg |
| 11 | Ctenophora pulchella | C. pulchella | # | Valieva, Elvira A | Counting, diatoms | (Ralfs ex Kützing) D.M.Williams & Round |
| 12 | Cyclotella sp. | Cyclotella sp. | # | Valieva, Elvira A | Counting, diatoms | |
| 13 | Denticula sp. | Denticula sp. | # | Valieva, Elvira A | Counting, diatoms | |
| 14 | Denticula subtilis | D. subtilis | # | Valieva, Elvira A | Counting, diatoms | Grunow |
| 15 | Epithemia argus | E. argus | # | Valieva, Elvira A | Counting, diatoms | (Ehrenberg) Kutzing |
| 16 | Epithemia sp. | Epithemia sp. | # | Valieva, Elvira A | Counting, diatoms | |
| 17 | Gyrosigma sp. | Gyrosigma sp. | # | Valieva, Elvira A | Counting, diatoms | |
| 18 | Handmannia comta | H. comta | # | Valieva, Elvira A | Counting, diatoms | (Ehrenberg) Kociolek & Khursevich emend. Genkal |
| 19 | Karayevia clevei | K. clevei | # | Valieva, Elvira A | Counting, diatoms | (Grunow) Bukhtiyarova |
| 20 | Mastogloia braunii | M. braunii | # | Valieva, Elvira A | Counting, diatoms | Grunow |
| 21 | Mastogloia dansei | M. dansei | # | Valieva, Elvira A | Counting, diatoms | (Thwaites) Thwaites ex W.Smith |
| 22 | Mastogloia sp. | Mastogloia sp. | # | Valieva, Elvira A | Counting, diatoms | |
| 23 | Nitzschia acidoclinata | N. acidoclinata | # | Valieva, Elvira A | Counting, diatoms | Lange-Bertalot |
| 24 | Nitzschia fonticola | N. fonticola | # | Valieva, Elvira A | Counting, diatoms | (Grunow) Grunow |
| 25 | Nitzschia hungarica | N. hungarica | # | Valieva, Elvira A | Counting, diatoms | Grunow |
| 26 | Nitzschia microcephala | N. microcephala | # | Valieva, Elvira A | Counting, diatoms | Grunow |
| 27 | Nitzschia perminuta | N. perminuta | # | Valieva, Elvira A | Counting, diatoms | Grunow |
| 28 | Nitzschia sp. | Nitzschia sp. | # | Valieva, Elvira A | Counting, diatoms | |
| 29 | Pantocsekiella delicatula | P. delicatula | # | Valieva, Elvira A | Counting, diatoms | (Hustedt) K.T.Kiss & E. Ács |
| 30 | Pinnularia sp. | Pinnularia sp. | # | Valieva, Elvira A | Counting, diatoms | |
| 31 | Staurosira construens | S. construens | # | Valieva, Elvira A | Counting, diatoms | Ehrenberg |
| 32 | Stephanodiscus sp. | Stephanodiscus sp. | # | Valieva, Elvira A | Counting, diatoms | |
| 33 | Surirella sp. | Surirella sp. | # | Valieva, Elvira A | Counting, diatoms | |
| 34 | Tabularia fasciculata | T. fasciculata | # | Valieva, Elvira A | Counting, diatoms | (C.Agardh) D.M.Williams & Round |
| 35 | Tryblionella sp. | Tryblionella sp. | # | Valieva, Elvira A | Counting, diatoms |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1256 data points