Counts of diatom valves for the Eemian sediment sequence retrieved from Sokli (Finland) in 2010
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| Natura: | Dataset Open Access |
| Lingua: | en |
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PANGAEA
2025
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| author | Plikk, Anna Engels, Stefan Fernández-Fernández, Maria Katrantsiotis, Christos Kylander, Malin E Löwemark, Ludvig Salonen, Sakari Väliranta, Minna Helmens, Karin |
| author_facet | Plikk, Anna Engels, Stefan Fernández-Fernández, Maria Katrantsiotis, Christos Kylander, Malin E Löwemark, Ludvig Salonen, Sakari Väliranta, Minna Helmens, Karin |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | This dataset provides counts of diatom valves for the Eemian sediment sequence retrieved from Sokli (Finland) in 2010. Counts per taxon are presented against both depth (m) and age (ka BP); total sums for classes of diatoms (e.g. total benthic diatoms) and overall counts are presented as well. The diatom dataset provides information on Eemian lake ecosystem dynamics. A total of 104 samples were selected for diatom analysis. Diatoms were extracted from the sediment following the protocol presented by Battarbee et al. (2003). First, organic matter was oxidized in H2O2 in a water bath (at c. 100 °C). Subsequently, carbonates were removed by 10% HCl treatment (no visible reaction). Clay particles were decanted from 100 ml beakers after sedimentation overnight. Sand grains were removed after five seconds of sedimentation. The residue was mounted in Naphrax® and analysed under a light microscope with X1000 magnification using immersion oil. Flora used for species identification and information on ecological preferences are presented in Plikk et al. (2016; 2021). A minimum of 400 diatoms were identified from each sample with the exception of the bottommost samples where diatom abundance was very low. All analyses were performed in the laboratories Stockholm University, Sweden. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_979954 |
| institution | PANGAEA |
| language | en |
| publishDate | 2025 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Counts of diatom valves for the Eemian sediment sequence retrieved from Sokli (Finland) in 2010 Plikk, Anna Engels, Stefan Fernández-Fernández, Maria Katrantsiotis, Christos Kylander, Malin E Löwemark, Ludvig Salonen, Sakari Väliranta, Minna Helmens, Karin Achnanthes bioretii; Achnanthes cf. lanceolata ssp. biporoma; Achnanthes conspicua; Achnanthes daui; Achnanthes exigua var. exigua; Achnanthes hungarica; Achnanthes joursacense; Achnanthes lanceolata ssp. biporoma; Achnanthes lanceolata ssp. frequentissima; Achnanthes minutissima; Achnanthes peragalli; Achnanthes spp.; Achnanthes ziegleri; AGE; Amphora aequalis; Amphora cf. aequalis; Amphora inariensis; Amphora libyca; Amphora ovalis; Amphora pediculus; Amphora spp.; Asterionella formosa; Aulacoseira ambigua; Aulacoseira distans var. alpigena; Aulacoseira distans var. distans; Aulacoseira granulata; Aulacoseira islandica; Aulacoseira islandica resting spore; Aulacoseira italica var. tenuissima; Aulacoseira spp.; Aulacoseira subarctica; C/N; Caloneis bacillum; Caloneis spp.; Caloneis ventricosa; cf. Campylodiscus clypeus; cf. Cyclotella invisitatus; Chaetoceros, resting spores; Chironomids; Chrysophycean cysts; Cocconeis neodiminuta; Cocconeis neothumensis; Cocconeis placentula; Cocconeis placentula var. euglypta; Cocconeis placentula var. lineata; Cocconeis placentula var. placentula; Cocconeis spp.; Cyclostephanos dubius; Cyclotella bodanica var. affinis; Cyclotella krammeri; Cyclotella meneghiniana; Cyclotella michiganiana; Cyclotella pseudostelligera; Cyclotella radiosa; Cyclotella rossii; Cyclotella spp.; Cyclotella stelligera; Cymatopleura solea; Cymbella amphicephala var. amphicephala; Cymbella aspera; Cymbella cf. cistula; Cymbella cf. minuta; Cymbella cistula; Cymbella cuspidata; Cymbella cymbiformis var. cymbiformis; Cymbella cymbiformis var. nonpunctata; Cymbella ehrenbergii; Cymbella lanceolata; Cymbella leptoceros; Cymbella minuta; Cymbella proxima; Cymbella reinhardtii; Cymbella silesiaca; Cymbella sinuata; Cymbella spp.; Denticula kuetzingii var. kuetzingii; DEPTH, sediment/rock; Diatom; Diatoms; Diatoms, aerophilic; Diatoms, benthic; Diatoms, fragilaioid; Diatoms, halophilous; Diatoms, planktic; Diatoms, reworked or tertiary; Diatoms, rheophilic; Diatoms, tychoplanktic; Diatoms indeterminata; Diploneis elliptica var. elliptica; Diploneis elliptica var. pygmaea; Diploneis parma; Diploneis smithii var. dilatata; Diploneis spp.; Eemian; Epithemia adnata; Epithemia smithii; Epithemia sorex; Epithemia spp.; Epithemia turgida; Eunotia arcus; Eunotia glacialis; Eunotia paludosa var. paludosa; Eunotia spp.; Finland; Fragilaria alpestris; Fragilaria bidens; Fragilaria brevistriata var. papillosa; Fragilaria capucina var. capucina; Fragilaria capucina var. distans; Fragilaria capucina var. mesolepta; Fragilaria capucina var. vaucheriae; Fragilaria cf. biceps; Fragilaria cf. microstriata; Fragilaria constricta; Fragilaria crotonensis; Fragilaria oldenburgioides; Fragilaria pseudoconstruens; Fragilaria spp.; Fragilariforma neoproducta; Gomphonema acuminatum var. acuminatum; Gomphonema amoenum; Gomphonema angustum; Gomphonema cf. acuminatum; Gomphonema clavatum; Gomphonema gracile; Gomphonema minutum; Gomphonema olivaceum; Gomphonema parvulum var. parvulum; Gomphonema spp.; Gomphonema truncatum; Itrax; loss on ignition; macrobotanical remains; Martyana martyi; Mastogloia smithii var. lacustris; Meridion circulare; Microscopy; MIS 5e; n-alkanes; Navicula absoluta; Navicula angusta; Navicula bacillum var. bacillum; Navicula capitata var. capitata; Navicula capitata var. hungarica; Navicula capitata var. lueneburgensis; Navicula cari; Navicula cf. eidrigiana; Navicula cf. ignota; Navicula cf. kriegeri; Navicula cf. minima; Navicula cf. modica; Navicula cf. paanaensis; Navicula cf. seminulum; Navicula cf. submuralis; Navicula cf. veneta; Navicula cf. vitabunda; Navicula cohnii; Navicula constans var. constans; Navicula cryptocephala; Navicula cuspidata var. cuspidata; Navicula decussis var. decussis; Navicula digitoradiata; Navicula diluviana; Navicula elginensis var. elginensis; Navicula explanata; Navicula gastrum var. gastrum; Navicula jaernefeltii; Navicula jentzschii; Navicula lacustris; Navicula laevissima var. laevissima; Navicula lapidosa; Navicula laterostrata; Navicula menisculus var. minusculus; Navicula minima var. minima; Navicula pseudanglica var. pseudanglica; Navicula pseudoscutiformis; Navicula pseudoventralis; Navicula pupula var. pseudopupula; Navicula pupula var. pupula; Navicula radiosa var. radiosa; Navicula reinhardtii; Navicula rhynchocephala; Navicula salinarum; Navicula schoenfeldii; Navicula scutelloides; Navicula spp.; Navicula subrotundata; Navicula thoroddseni; Navicula tuscula; Navicula utermoehli; Navicula viridula var. linearis; Navicula viridula var. vulpina; Navicula vitabunda; Neidium iridis var. ampliatum; Neidium spp.; Nitzschia cf. alpina; Nitzschia cf. frustulum; Nitzschia cf. palea; Nitzschia cf. perminuta; Nitzschia inconspicua; Nitzschia perminuta; Nitzschia spp.; non-pollen palynomorphs; Phytoliths; Pinnularia abaujensis; Pinnularia cf. subcapitata; Pinnularia major var. major; Pinnularia microstauron; Pinnularia microstauron var. brebissonii; Pinnularia spp.; Pinnularia viridis var. viridis; Pollen; Pseudostaurosira brevistriata; Rhopalodia cf. gibberula; Rhopalodia gibba var. gibba; Rotary-percussion drill; RPDRILL; Siliceous microfossils; Sokli; Sokli_2010/4; Sponge spiculae; stabe isotopes; Stauroneis phoenicenteron var. phoenicenteron; Stauroneis spp.; Staurosira construens var. binodis; Staurosira construens var. construens; Staurosira construens var. triundulata; Staurosira construens var. venter; Staurosira spp.; Staurosirella lapponica; Staurosirella leptostauron; Staurosirella leptostauron var. dubia; Staurosirella leptostauron var. leptostauron; Staurosirella pinnata; Staurosirella pinnata var. pinnata; Staurosirella pinnata var. subsolitaris; Staurosirella spp.; Stephanodiscus alpinus; Stephanodiscus cf. hantzschii; Stephanodiscus cf. minutulus; Stephanodiscus hantzschii; Stephanodiscus medius; Stephanodiscus neoastraea; Stephanodiscus parvus; Stephanodiscus spp.; Surirella linearis var. constricta; Surirella spp.; Synedra parasitica var. parasitica; Tabellaria fenestrata; Tabellaria flocculosa; Tabellaria spp.; Tetracyclus emarginatus; Tetracyclus lacustris; Tetracyclus spp.; Ulnaria ulna This dataset provides counts of diatom valves for the Eemian sediment sequence retrieved from Sokli (Finland) in 2010. Counts per taxon are presented against both depth (m) and age (ka BP); total sums for classes of diatoms (e.g. total benthic diatoms) and overall counts are presented as well. The diatom dataset provides information on Eemian lake ecosystem dynamics. A total of 104 samples were selected for diatom analysis. Diatoms were extracted from the sediment following the protocol presented by Battarbee et al. (2003). First, organic matter was oxidized in H2O2 in a water bath (at c. 100 °C). Subsequently, carbonates were removed by 10% HCl treatment (no visible reaction). Clay particles were decanted from 100 ml beakers after sedimentation overnight. Sand grains were removed after five seconds of sedimentation. The residue was mounted in Naphrax® and analysed under a light microscope with X1000 magnification using immersion oil. Flora used for species identification and information on ecological preferences are presented in Plikk et al. (2016; 2021). A minimum of 400 diatoms were identified from each sample with the exception of the bottommost samples where diatom abundance was very low. All analyses were performed in the laboratories Stockholm University, Sweden. |
| title | Counts of diatom valves for the Eemian sediment sequence retrieved from Sokli (Finland) in 2010 |
| topic | Achnanthes bioretii; Achnanthes cf. lanceolata ssp. biporoma; Achnanthes conspicua; Achnanthes daui; Achnanthes exigua var. exigua; Achnanthes hungarica; Achnanthes joursacense; Achnanthes lanceolata ssp. biporoma; Achnanthes lanceolata ssp. frequentissima; Achnanthes minutissima; Achnanthes peragalli; Achnanthes spp.; Achnanthes ziegleri; AGE; Amphora aequalis; Amphora cf. aequalis; Amphora inariensis; Amphora libyca; Amphora ovalis; Amphora pediculus; Amphora spp.; Asterionella formosa; Aulacoseira ambigua; Aulacoseira distans var. alpigena; Aulacoseira distans var. distans; Aulacoseira granulata; Aulacoseira islandica; Aulacoseira islandica resting spore; Aulacoseira italica var. tenuissima; Aulacoseira spp.; Aulacoseira subarctica; C/N; Caloneis bacillum; Caloneis spp.; Caloneis ventricosa; cf. Campylodiscus clypeus; cf. Cyclotella invisitatus; Chaetoceros, resting spores; Chironomids; Chrysophycean cysts; Cocconeis neodiminuta; Cocconeis neothumensis; Cocconeis placentula; Cocconeis placentula var. euglypta; Cocconeis placentula var. lineata; Cocconeis placentula var. placentula; Cocconeis spp.; Cyclostephanos dubius; Cyclotella bodanica var. affinis; Cyclotella krammeri; Cyclotella meneghiniana; Cyclotella michiganiana; Cyclotella pseudostelligera; Cyclotella radiosa; Cyclotella rossii; Cyclotella spp.; Cyclotella stelligera; Cymatopleura solea; Cymbella amphicephala var. amphicephala; Cymbella aspera; Cymbella cf. cistula; Cymbella cf. minuta; Cymbella cistula; Cymbella cuspidata; Cymbella cymbiformis var. cymbiformis; Cymbella cymbiformis var. nonpunctata; Cymbella ehrenbergii; Cymbella lanceolata; Cymbella leptoceros; Cymbella minuta; Cymbella proxima; Cymbella reinhardtii; Cymbella silesiaca; Cymbella sinuata; Cymbella spp.; Denticula kuetzingii var. kuetzingii; DEPTH, sediment/rock; Diatom; Diatoms; Diatoms, aerophilic; Diatoms, benthic; Diatoms, fragilaioid; Diatoms, halophilous; Diatoms, planktic; Diatoms, reworked or tertiary; Diatoms, rheophilic; Diatoms, tychoplanktic; Diatoms indeterminata; Diploneis elliptica var. elliptica; Diploneis elliptica var. pygmaea; Diploneis parma; Diploneis smithii var. dilatata; Diploneis spp.; Eemian; Epithemia adnata; Epithemia smithii; Epithemia sorex; Epithemia spp.; Epithemia turgida; Eunotia arcus; Eunotia glacialis; Eunotia paludosa var. paludosa; Eunotia spp.; Finland; Fragilaria alpestris; Fragilaria bidens; Fragilaria brevistriata var. papillosa; Fragilaria capucina var. capucina; Fragilaria capucina var. distans; Fragilaria capucina var. mesolepta; Fragilaria capucina var. vaucheriae; Fragilaria cf. biceps; Fragilaria cf. microstriata; Fragilaria constricta; Fragilaria crotonensis; Fragilaria oldenburgioides; Fragilaria pseudoconstruens; Fragilaria spp.; Fragilariforma neoproducta; Gomphonema acuminatum var. acuminatum; Gomphonema amoenum; Gomphonema angustum; Gomphonema cf. acuminatum; Gomphonema clavatum; Gomphonema gracile; Gomphonema minutum; Gomphonema olivaceum; Gomphonema parvulum var. parvulum; Gomphonema spp.; Gomphonema truncatum; Itrax; loss on ignition; macrobotanical remains; Martyana martyi; Mastogloia smithii var. lacustris; Meridion circulare; Microscopy; MIS 5e; n-alkanes; Navicula absoluta; Navicula angusta; Navicula bacillum var. bacillum; Navicula capitata var. capitata; Navicula capitata var. hungarica; Navicula capitata var. lueneburgensis; Navicula cari; Navicula cf. eidrigiana; Navicula cf. ignota; Navicula cf. kriegeri; Navicula cf. minima; Navicula cf. modica; Navicula cf. paanaensis; Navicula cf. seminulum; Navicula cf. submuralis; Navicula cf. veneta; Navicula cf. vitabunda; Navicula cohnii; Navicula constans var. constans; Navicula cryptocephala; Navicula cuspidata var. cuspidata; Navicula decussis var. decussis; Navicula digitoradiata; Navicula diluviana; Navicula elginensis var. elginensis; Navicula explanata; Navicula gastrum var. gastrum; Navicula jaernefeltii; Navicula jentzschii; Navicula lacustris; Navicula laevissima var. laevissima; Navicula lapidosa; Navicula laterostrata; Navicula menisculus var. minusculus; Navicula minima var. minima; Navicula pseudanglica var. pseudanglica; Navicula pseudoscutiformis; Navicula pseudoventralis; Navicula pupula var. pseudopupula; Navicula pupula var. pupula; Navicula radiosa var. radiosa; Navicula reinhardtii; Navicula rhynchocephala; Navicula salinarum; Navicula schoenfeldii; Navicula scutelloides; Navicula spp.; Navicula subrotundata; Navicula thoroddseni; Navicula tuscula; Navicula utermoehli; Navicula viridula var. linearis; Navicula viridula var. vulpina; Navicula vitabunda; Neidium iridis var. ampliatum; Neidium spp.; Nitzschia cf. alpina; Nitzschia cf. frustulum; Nitzschia cf. palea; Nitzschia cf. perminuta; Nitzschia inconspicua; Nitzschia perminuta; Nitzschia spp.; non-pollen palynomorphs; Phytoliths; Pinnularia abaujensis; Pinnularia cf. subcapitata; Pinnularia major var. major; Pinnularia microstauron; Pinnularia microstauron var. brebissonii; Pinnularia spp.; Pinnularia viridis var. viridis; Pollen; Pseudostaurosira brevistriata; Rhopalodia cf. gibberula; Rhopalodia gibba var. gibba; Rotary-percussion drill; RPDRILL; Siliceous microfossils; Sokli; Sokli_2010/4; Sponge spiculae; stabe isotopes; Stauroneis phoenicenteron var. phoenicenteron; Stauroneis spp.; Staurosira construens var. binodis; Staurosira construens var. construens; Staurosira construens var. triundulata; Staurosira construens var. venter; Staurosira spp.; Staurosirella lapponica; Staurosirella leptostauron; Staurosirella leptostauron var. dubia; Staurosirella leptostauron var. leptostauron; Staurosirella pinnata; Staurosirella pinnata var. pinnata; Staurosirella pinnata var. subsolitaris; Staurosirella spp.; Stephanodiscus alpinus; Stephanodiscus cf. hantzschii; Stephanodiscus cf. minutulus; Stephanodiscus hantzschii; Stephanodiscus medius; Stephanodiscus neoastraea; Stephanodiscus parvus; Stephanodiscus spp.; Surirella linearis var. constricta; Surirella spp.; Synedra parasitica var. parasitica; Tabellaria fenestrata; Tabellaria flocculosa; Tabellaria spp.; Tetracyclus emarginatus; Tetracyclus lacustris; Tetracyclus spp.; Ulnaria ulna |
| url | https://doi.org/10.1594/PANGAEA.979954 |