Shala, Shyhrete; Helmens, Karin; Engels, Stefan; Kuhry, Peter; Kylander, Malin E; Luoto, Tomi P; Salonen, Sakari; Väliranta, Minna; Weckström, Jan (2025): Diatom valves for the Holocene sediment sequence retrieved from Lake Loitsana, Finland [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.975088
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Published: 2025-02-13 • DOI registered: 2025-03-14
Abstract:
This dataset provides counts of diatom valves for the Holocene sediment sequence retrieved from Lake Loitsana (Finland) in 2008. Counts per taxon are presented against both depth (m) and age (cal ka. BP); total sums for classes of diatoms (e.g. total benthic taxa) and all counts are presented as well. Two age/depths models are presented: the first model represents the original age/depth model applied to the records (Shala et al., 2014; 2017) and the second age/depth model, which is the author-preferred version, presents updated age-estimates derived using the r package 'Bacon' (Blaauw and Christensen, 2011). The diatom dataset provides information on Holocene lake ecosystem dynamics and was used to quantitatively reconstruct Total Phosphorous (TP) values of the lake water. A total of 124 samples were selected for diatom analysis. Diatoms were extracted from the sediment following the protocol presented by Battarbee (1986). 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 (2h intervals). 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 Helmens et al. (2009). A minimum of 500 diatoms were identified from each sample with the exception of samples at 900-700 cm where diatom abundance was low. All analyses were performed in the laboratories Stockholm University, Sweden.
Keyword(s):
References:
Battarbee, Richard (1986): Diatom analysis. In: Berglund, B E (ed.), Handbook of Holocene Palaeoecology and Palaeohydrology: Toronto, John Wiley and Sons, 527-570
Blaauw, Maarten; Christen, Andrés (2011): Flexible paleoclimate age-depth models using an autoregressive gamma process. Bayesian Analysis, 6(3), 457-474, https://doi.org/10.1214/11-BA618
Helmens, Karin F; Risberg, Jan; Jansson, Krister N; Weckström, Jan; Berntsson, Annika; Tillman, Päivi Kaislahti; Johansson, Peter W; Wastegård, Stefan (2009): Early MIS 3 glacial lake evolution, ice-marginal retreat pattern and climate at Sokli (northeastern Fennoscandia). Quaternary Science Reviews, 28(19-20), 1880-1894, https://doi.org/10.1016/j.quascirev.2009.03.001
Shala, Shyhrete; Helmens, Karin F; Luoto, Tomi P; Salonen, J Sakari; Väliranta, Minna; Weckström, Jan (2017): Comparison of quantitative Holocene temperature reconstructions using multiple proxies from a northern boreal lake. The Holocene, 27(11), 1745-1755, https://doi.org/10.1177/0959683617708442
Shala, Shyhrete; Helmens, Karin F; Luoto, Tomi P; Väliranta, Minna; Weckström, Jan; Salonen, J Sakari; Kuhry, Peter (2014): Evaluating environmental drivers of Holocene changes in water chemistry and aquatic biota composition at Lake Loitsana, NE Finland. Journal of Paleolimnology, https://doi.org/10.1007/s10933-014-9795-1
Funding:
Coverage:
Latitude: 67.804722 * Longitude: 29.282222
Date/Time Start: 2008-04-05T10:00:00 * Date/Time End: 2008-04-06T18:00:00
Minimum DEPTH, sediment/rock: 0.01 m * Maximum DEPTH, sediment/rock: 8.88 m
Event(s):
Comment:
Further funding was provided by SKB (Swedish Nuclear Fuel and Waste Management Company) and the Bolin Centre for Climate Research.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Engels, Stefan | Geocode | |
| 2 | Age model | Age model | ka | Engels, Stefan | Calculated, according to Shala et al. (2017) | |
| 3 | Age model | Age model | ka | Engels, Stefan | Calculated according to Blaauw and Christen (2011) | |
| 4 | Aulacoseira ambigua | A. ambigua | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Aulacoseira ambigua (Grunow) Simonsen |
| 5 | Aulacoseira islandica | A. islandica | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Aulacoseira islandica (O. Müller) Simonsen |
| 6 | Aulacoseira subarctica | A. subarctica | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Aulacoseira subartica (O. Müller) Haworth |
| 7 | Cyclostephanos dubius | C. dubius | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cyclostephanos dubius (Fricke in A. Schmidt) Round |
| 8 | Cyclotella meneghiniana | C. meneghiniana | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cyclotella meneghiniana Kützing |
| 9 | Cyclotella ocellata | C. ocellata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cyclotella ocellata Pantocsek |
| 10 | Cyclotella radiosa | C. radiosa | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cyclotella radiosa (Grunow) Lemmermann |
| 11 | Cyclotella rossii | C. rossii | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cyclotella rossii Håkansson |
| 12 | Cyclotella spp. | Cyclotella spp. | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cyclotella spp. (Kützing) Brébisson |
| 13 | Stephanodiscus cf. hantzschii | S. cf. Hantzschii | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Stephanodiscus cf. hantzschii Grunow (in Cleve & Grunow) |
| 14 | Stephanodiscus medius | S. medius | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Stephanodiscus medius Håkansson |
| 15 | Stephanodiscus parvus | S. parvus | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Stephanodiscus parvus Stoermer & Håkansson |
| 16 | Stephanodiscus spp. | Stephanodiscus spp. | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Stephanodiscus spp. Ehrenberg |
| 17 | Aulacoseira distans | A. distans | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Aulacoseira distans (Ehrenberg) Simonsen |
| 18 | Aulacoseira lirata var. biseriata | A. lirata var. Biseriata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Aulacoseira lirata var. biseriata (Grunow) Haworth |
| 19 | Aulacoseira valida | A. valida | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Aulacoseira valida (Grunow) Krammer |
| 20 | Fragilaria capucina var. capucina | F. capu var. capu | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Fragilaria capucina Desmazières |
| 21 | Fragilaria capucina var. mesolepta | F. capu var. mesolepta | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Fragilaria capucina var. mesolepta (Rabenhorst) Rabenhorst |
| 22 | Fragilaria capucina var. rumpens | F. capu var. rumpens | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Fragilaria capucina var. rumpens (Kützing) Lange-Bertalot |
| 23 | Fragilaria capucina var. vaucheriae | F. capu var. vaucheriae | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Fragilaria capucina var. vaucheriae (Kützing) Lange-Bertalot |
| 24 | Melosira varians | M. varians | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Melosira varians Agardh |
| 25 | Tabellaria flocculosa | T. flocculosa | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Tabellaria flocculosa (Roth) Kützing |
| 26 | Ulnaria ulna | Ulnaria ulna | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Ulnaria ulna (Nitzsch) Compère |
| 27 | Achnanthes clevei | A. clevei | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Achnanthes clevei Grunow |
| 28 | Achnanthes conspicua | A. conspicua | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Achnanthes conspicua Mayer |
| 29 | Achnanthes lanceolata | A. lanceolata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Achnanthes lanceolata (Brébisson) Grunow |
| 30 | Achnanthes lanceolata ssp. Lanceolata | A. lanceolata ssp. lanceolata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Achnanthes lanceolata ssp frequentissima Lange-Bertalot |
| 31 | Achnanthes laterostrata | A. laterostrata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Achnanthes laterostrata Hustedt |
| 32 | Achnanthes oblongella | A. oblongella | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Achnanthes oblongella Oestrup |
| 33 | Achnanthes peragalli | A. peragalli | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Achnanthes peragalli Brun & Heribaud |
| 34 | Achnanthes ziegleri | A. ziegleri | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Achnanthes ziegleri Lange-Bertalot |
| 35 | Amphora inariensis | A. inariensis | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Amphora inariensis Krammer |
| 36 | Amphora libyca | A. libyca | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Amphora libyca Ehrenberg |
| 37 | Amphora ovalis | A. ovalis | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Amphora ovalis (Kützing) Kützing |
| 38 | Aneumastus tuscula | A. tuscula | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Aneumastus tuscula (Ehrenberg) Mann & Stickle |
| 39 | Anomoeoneis sphaerophora | A. sphaerophora | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Anomoeoneis sphaerophora (Ehrenberg) Pfitzer |
| 40 | Aulacoseira alpigena | A. alpigena | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Aulacoseira alpigena (Grunow) Krammer |
| 41 | Aulacoseira crassipunctata | A. crassipunctata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Aulacoseira crassipunctata Krammer |
| 42 | Aulacoseira italica | A. italica | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Aulacoseira italica (Ehrenberg) Simonsen |
| 43 | Aulacoseira italica var. tenuissima | A. italica var. tenuissima | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Aulacoseira italica var. tenuissima (Grunow) Simonsen |
| 44 | Caloneis bacillum | C. bacillum | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Caloneis bacillum (Grunow) Cleve |
| 45 | Caloneis schumanniana | C. schumanniana | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Caloneis schumanniana (Grunow) Cleve |
| 46 | Caloneis ventricosa | C. ventricosa | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Caloneis ventricosa (Ehrenberg) Meister |
| 47 | Campylodiscus noricus var. hibernicus | C. noricus var. hibernicus | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Campylodiscus noricus var. hibernicus (Ehrenberg) |
| 48 | Cocconeis disculus | C. disculus | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cocconeis disculus (Schumann) Cleve |
| 49 | Cocconeis neodiminuta | C. neodiminuta | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cocconeis neodiminuta Krammer |
| 50 | Cocconeis placentula | C. placentula | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cocconeis placentula Ehrenberg |
| 51 | Cocconeis placentula var. euglypta | C. placentula var. euglypta | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cocconeis placentula var. euglypta (Ehrenberg) Grunow |
| 52 | Cocconeis placentula var. lineata | C. placentula var. lineata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cocconeis placentula var. lineata (Ehrenberg) van Heurck |
| 53 | Cocconeis placentula var. pseudolineata | C. placentula var. pseudolineata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cocconeis placentula var. pseudolineata Geitler |
| 54 | Craticula cuspidata | C. cuspidata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Craticula cuspidata (Kützing) Mann |
| 55 | Cymatopleura solea | C. solea | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cymatopleura solea (Brébisson & Godey) W. Smith |
| 56 | Cymatopleura spp. | Cymatopleura spp. | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cymatopleura spp. W. Smith |
| 57 | Cymbella affinis | C. affinis | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cymbella affinis (Kützing) |
| 58 | Cymbella amphicephala | C. amphicephala | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cymbella amphicephala (Naegeli) |
| 59 | Cymbella aspera | C. aspera | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cymbella aspera (Ehrenberg) Cleve |
| 60 | Cymbella cistula | C. cistula | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cymbella cistula (Ehrenberg) Kirchner |
| 61 | Cymbella cuspidata | C. cuspidata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cymbella cuspidata Kützing |
| 62 | Cymbella cymbiformis | C. cymbiformis | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cymbella cymbiformis Agardh |
| 63 | Cymbella ehrenbergii | C. ehrenbergii | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cymbella ehrenbergii Kützing |
| 64 | Cymbella helvetica | C. helvetica | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cymbella helvetica Kützing |
| 65 | Cymbella minuta | C. minuta | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cymbella minuta Hilse |
| 66 | Cymbella paucistriata | C. paucistriata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cymbella paucistriata Cleve-Euler |
| 67 | Cymbella proxima | C. proxima | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cymbella proxima Reimer in Patrick and Reimer |
| 68 | Cymbella reichardtii | C. reichardtii | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cymbella reichardtii Krammer |
| 69 | Cymbella simonsenii | C. simonsenii | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cymbella simonsenii Krammer |
| 70 | Cymbella subaequalis | C. subaequalis | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cymbella subaequalis Grunow in Van Heurck |
| 71 | Cymbella subcuspidata | C. subcuspidata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cymbella subcuspidata Krammer |
| 72 | Didymosphenia geminata | D. geminata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Didymosphenia geminata (Lyngbye) M. Schmidt |
| 73 | Diploneis elliptica var. elliptica | D. elliptica var. elliptica | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Diploneis elliptica var. elliptica (Kützing) Cleve |
| 74 | Diploneis oculata | D. oculata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Diploneis oculata (Brébisson) Cleve |
| 75 | Diploneis parma | D. parma | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Diploneis parma Cleve |
| 76 | Ellerbeckia arenaria var. teres | E. arenaria var. teres | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Ellerbeckia arenaria f. teres (Brun) Crawford |
| 77 | Encyonema silesiacum | E. silesiacum | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Encyonema silesiacum (Bleisch in Rabenhorst) Mann |
| 78 | Epithemia adnata | E. adnata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Epithemia adnata (Kützing) Brébisson |
| 79 | Epithemia sorex var. sorex | E. sorex var. sorex | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Epithemia sorex var. sorex Kützing |
| 80 | Epithemia spp. | Epithemia spp. | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Epithemia spp. Brébisson |
| 81 | Epithemia turgida var. granulata | E. turgida var. granulata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Epithemia turgida var. granulata (Ehrenberg) Brun |
| 82 | Epithemia turgida var. turgida | E. turgida var. turgida | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Epithemia turgida var. turgida (Ehrenberg) Kützing |
| 83 | Eunotia curvata | E. curvata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Eunotia curvata (Kützing) Lagerstedt |
| 84 | Eunotia praerupta | E. praerupta | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Eunotia praerupta Ehrenberg |
| 85 | Eunotia praerupta var. papilio | E. praerupta var. papilio | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Eunotia praerupta var. papilio (Grunow) Nörpel |
| 86 | Fragilaria bidens | F. bidens | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Fragilaria bidens (Ehrenberg) Grunow |
| 87 | Fragilaria nitzschioides | F. nitzschioides | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Fragilaria nitzschioides (Grunow) |
| 88 | Fragilaria robusta | F. robusta | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Fragilaria robusta (Fusey) Manguin |
| 89 | Fragilariforma neoproducta | F. neoproducta | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Fragilariforma neoproducta Lange-Bertalot |
| 90 | Frustulia amphipleuroides | F. amphipleuroides | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Frustulia amphipleuroides (Grunow in Cleve & Grunow) Cleve-Euler |
| 91 | Frustulia vulgaris | F. vulgaris | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Frustulia vulgaris (Thwaites) De Toni |
| 92 | Gomphonema acuminatum | G. acuminatum | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Gomphonema acuminatum var. acuminatum Ehrenberg |
| 93 | Gomphonema angustatum | G. angustatum | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Gomphonema angustatum (Kützing) Rabenhorst |
| 94 | Gomphonema clavatum | G. clavatum | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Gomphonema clavatum Ehrenberg |
| 95 | Gomphonema gracile | G. gracile | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Gomphonema gracile Ehrenberg |
| 96 | Gomphonema minutum | G. minutum | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Gomphonema minutum (Agardh) Agardh |
| 97 | Gomphonema ovaliceum | G. ovaliceum | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Gomphonema olivaceum (Hornemann) Brébisson |
| 98 | Gomphonema parvulum | G. parvulum | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Gomphonema parvulum var. parvulum (Kützing) Kützing |
| 99 | Gomphonema spp. | Gomphonema spp. | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Gomphonema spp. Agardh |
| 100 | Gomphonema truncatum | G. truncatum | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Gomphonema truncatum Ehrenberg |
| 101 | Gyrosigma acuminatum | G. acuminatum | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Gyrosigma acuminatum (Kützing) Rabenhorst |
| 102 | Hippodonta capitata | H. capitata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Hippodonta capitata (Ehrenberg) Lange-Bertalot, Metzeltin & Witkowski |
| 103 | Hippodonta lueneburgensis | H. lueneburgensis | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Hippodonta lueneburgensis (Grunow) Lange-Bertalot, Metzeltin & Witkowski |
| 104 | Martyana martyi | M. martyi | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Martyana martyi (Héribaud) Round |
| 105 | Navicula abiskoensis | N. abiskoensis | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula abiskoensis Hustedt |
| 106 | Navicula absoluta | N. absoluta | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula absoluta Hustedt |
| 107 | Navicula cari | N. cari | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula cari Ehrenberg |
| 108 | Navicula clementioides | N. clementioides | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula clementioides Hustedt |
| 109 | Navicula clementis | N. clementis | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula clementis Grunow |
| 110 | Navicula constans | N. constans | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula constans Hustedt |
| 111 | Navicula cryptocephala | N. cryptocephala | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula cryptocephala Kützing |
| 112 | Navicula cryptotenella | N. cryptotenella | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula cryptotenella Lange-Bertalot |
| 113 | Navicula decussis | N. decussis | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula decussis Oestrup |
| 114 | Navicula digitoradiata | N. digitoradiata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula digitoradiata (Gregory) Ralfs |
| 115 | Navicula exigua | N. exigua | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula exigua (Gregory) Grunow |
| 116 | Navicula explanata | N. explanata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula explanata Hustedt |
| 117 | Navicula gastrum | N. gastrum | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula gastrum (Ehrenberg) Kützing |
| 118 | Navicula harderi | N. harderi | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula harderi Hustedt in Brendmuhl |
| 119 | Navicula laevissima | N. laevissima | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula laevissima Kützing |
| 120 | Navicula lapidosa | N. lapidosa | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula lapidosa Krasske |
| 121 | Navicula laterostrata | N. laterostrata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula laterostrata Hustedt |
| 122 | Navicula menisculus | N. menisculus | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula menisculus Schumann |
| 123 | Navicula placentula | N. placentula | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula placentula (Ehrenberg) Kützing |
| 124 | Navicula protracta | N. protracta | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula protracta (Grunow) Cleve |
| 125 | Navicula pseudoventralis | N. pseudoventralis | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula pseudoventralis Hustedt |
| 126 | Navicula radiosa | N. radiosa | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula radiosa Kützing |
| 127 | Navicula reinhardtii | N. reinhardtii | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula reinhardtii Grunow |
| 128 | Navicula rhynchocephala | N. rhynchocephala | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula rhynchocephala Kützing |
| 129 | Navicula rotunda | N. rotunda | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula rotunda Hustedt |
| 130 | Navicula schoenfeldii | N. schoenfeldii | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula schoenfeldii Hustedt |
| 131 | Navicula scutelloides | N. scutelloides | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula scutelloides W. Smith ex. Gregory |
| 132 | Navicula spp. | Navicula spp. | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula spp. Bory |
| 133 | Navicula submuralis | N. submuralis | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula submuralis Hustedt |
| 134 | Navicula subrotundata | N. subrotundata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula subrotundata Hustedt |
| 135 | Navicula upsaliensis | N. upsaliensis | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula upsaliensis (Grunow) M.Peragallo |
| 136 | Navicula viridula | N. viridula | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula viridula (Kützing) Ehrenberg |
| 137 | Navicula vitabunda | N. vitabunda | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula vitabunda Hustedt |
| 138 | Navicula vulpina | N. vulpina | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula vulpina Kützing |
| 139 | Neidium affine | N. affine | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Neidium affine (Ehrenberg) Pfitzer |
| 140 | Neidium ampliatum | N. ampliatum | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Neidium ampliatum (Ehrenberg) Krammer |
| 141 | Neidium dubium | N. dubium | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Neidium dubium (Ehrenberg) Cleve |
| 142 | Neidium iridis | N. iridis | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Neidium iridis (Ehrenberg) Cleve |
| 143 | Neidium spp. | Neidium spp. | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Neidium spp. Pfitzer |
| 144 | Nitzschia amphibia | N. amphibia | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Nitzschia amphibia Grunow |
| 145 | Nitzschia fossilis | N. fossilis | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Nitzschia fossilis Grunow |
| 146 | Nitzschia intermedia | N. intermedia | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Nitzschia intermedia Hantzsch ex Cleve & Grunow |
| 147 | Nitzschia spp. | Nitzschia spp. | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Nitzschia spp. Hassall |
| 148 | Orthoseira dendroteres | O. dendroteres | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Orthoseira dendroteres (Ehrenberg) Crawford |
| 149 | Pinnularia abaujensis | P. abaujensis | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Pinnularia abaujensis (Pantoscek) Ross |
| 150 | Pinnularia interrupta | P. interrupta | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Pinnularia interrupta W. Smith |
| 151 | Pinnularia microstauron | P. microstauron | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Pinnularia microstauron (Ehrenberg) Cleve |
| 152 | Pinnularia pulchra | P. pulchra | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Pinnularia pulchra Oestrup |
| 153 | Pinnularia spp. | Pinnularia spp. | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Pinnularia spp. Ehrenberg |
| 154 | Pinnularia streptoraphe | P. streptoraphe | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Pinnularia streptoraphe Cleve |
| 155 | Pinnularia subcapitata | P. subcapitata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Pinnularia subcapitata Gregory |
| 156 | Pinnularia viridis cf. cuneatiformi | P. viridis cf. cuneatiformi | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Pinnularia viridis f. cuneatiformis Cleve-Euler |
| 157 | Placoneis elginensis | P. elginensis | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Placoneis elginensis (Gregory) Cox |
| 158 | Pseudostaurosira brevistriata | P. brevistriata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Pseudostaurosira brevistriata (Grunow in Van Heurck) Williams & Round |
| 159 | Pseudostaurosira pseudoconstruens | P. pseudoconstruens | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Pseudostaurosira pseudoconstruens (Marciniak) Williams & Round |
| 160 | Rhoicosphenia abbreviata | R. abbreviata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Rhoicosphenia abbreviata (Agardh) Lange-Bertalot |
| 161 | Rhopalodia gibba var. gibba | R. gibba var. gibba | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Rhopalodia gibba var. gibba (Ehrenberg) O. Müller |
| 162 | Sellaphora bacillum | S. bacillum | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Sellaphora bacillum (Ehrenberg) Mann |
| 163 | Sellaphora pupula | S. pupula | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Sellaphora pupula (Kützing) Mereschkowsky |
| 164 | Stauroneis acuta | S. acuta | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Stauroneis acuta W. Smith |
| 165 | Stauroneis anceps | S. anceps | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Stauroneis anceps var. anceps Ehrenberg |
| 166 | Stauroneis phoenicenteron | S. phoenicenteron | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Stauroneis phoenicenteron (Nitzsch) Ehrenberg |
| 167 | Stauroneis producta | S. producta | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Stauroneis producta Grunow |
| 168 | Stauroneis spp. | Stauroneis spp. | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Stauroneis spp. Ehrenberg |
| 169 | Staurosira binodis | S. binodis | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Staurosira construens var. binodis (Ehrenberg) Hamilton |
| 170 | Staurosira construens | S. construens | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Staurosira construens Ehrenberg |
| 171 | Staurosira venter | S. venter | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Staurosira venter (Ehrenberg) H.Kobayasi |
| 172 | Staurosirella lapponica | S. lapponica | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Staurosirella lapponica (Grunow in Van Heurck) Williams & Round |
| 173 | Staurosirella leptostauron | S. leptostauron | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Staurosirella leptostauron (Ehrenberg) Williams & Round |
| 174 | Staurosirella pinnata var. pinnata | S. pinnata var. pinnata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Staurosirella pinnata var. pinnata (Ehrenberg) Williams & Round |
| 175 | Surirella linearis | S. linearis | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Surirella linearis var. linearis W. Smith |
| 176 | Surirella linearis var. constricta | S. linearis var. constricta | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Surirella linearis var. constricta Hustedt |
| 177 | Synedra parasitica | S. parasitica | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Synedra parasitica (W. Smith) Hustedt |
| 178 | Synedra parasitica var. subconstricta | S. parasitica var. subconstricta | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Synedra parasitica var. subconstricta (Grunow in Van Heurck) Hustedt |
| 179 | Tetracyclus emarginatus | T. emarginatus | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Tetracyclus emarginatus (Ehrenberg) W. Smith |
| 180 | Tetracyclus glans | T. glans | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Tetracyclus glans (Ehrenberg) Mills |
| 181 | Achnanthes exigua | A. exigua | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Achnanthes exigua Grunow |
| 182 | Diploneis oblongella | D. oblongella | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Diploneis oblongella (Naegeli) Cleve-Euler |
| 183 | Hantzschia amphioxys | H. amphioxys | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Hantzschia amphioxys (Ehrenberg) Grunow in Cleve & Grunow |
| 184 | Navicula minima | N. minima | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula minima Grunow |
| 185 | Neidium bisulcatum var. subampliatum | N. bisulcatum var. subampliatum | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Neidium bisulcatum var. subampliatum Krammer |
| 186 | Pinnularia borealis var. scalaris | P. borealis var. scalaris | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Pinnularia borealis var. scalaris (Ehrenberg) Rabenhorst |
| 187 | Reimeria sinuata | R. sinuata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Reimeria sinuata (Gregory) Kociolek & Stoermer |
| 188 | Amphora pediculus | A. pediculus | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Amphora pediculus (Kützing) Grunow |
| 189 | Aulacoseira italica cf. crenulata | A. italica cf. crenulata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Aulacoseira italica f. crenulata (Ehrenberg) R. Ross in Hartley |
| 190 | Cymbella naviculiformis | C. naviculiformis | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cymbella naviculiformis Auerswald |
| 191 | Diatoma mesodon | D. mesodon | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Diatoma hyemalis (Roth) Heiberg |
| 192 | Fragilaria virescens | F. virescens | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Fragilaria virescens Ralfs |
| 193 | Meridion circulare var. circulare | M. circulare var. circulare | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Meridion circulare var. circulare (Greville) Agardh |
| 194 | Meridion circulare var. constrictum | M. circulare var. constrictum | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Meridion circulare var. constrictum (Ralfs) van Heurck |
| 195 | Coscinodiscus sp. | Coscinodiscus sp. | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Coscinodiscus spp. Ehrenberg |
| 196 | Hemiaulus sp. | Hemiaulus sp. | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Hemiaulus spp. Ehrenberg |
| 197 | Opephora gemmata | O. gemmata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Opephora gemmata (Grunow) Hustedt |
| 198 | Paralia sulcata | P. sulcata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Paralia sulcata (Ehrenberg) Cleve |
| 199 | Paralia sulcata var. biseriata | P. sulcata var. biseriata | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Paralia sulcata var. biseriata Grunow |
| 200 | Stephanopyxis sp. | Stephanopyxis sp. | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Stephanopyxis spp. Ehrenberg |
| 201 | Tertiary species | Ter.spe | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Teriary varia |
| 202 | Achnanthes spp. | Achnanthes spp. | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Achnanthes spp. Bory |
| 203 | Amphora spp. | Amphora spp. | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Amphora spp. Ehrenberg |
| 204 | Aulacoseira spp. | Aulacoseira spp. | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Aulacoseira spp. Thwaites |
| 205 | Caloneis spp. | Caloneis spp. | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Caloneis spp. Cleve |
| 206 | Cymbella spp. | Cymbella spp. | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Cymbella spp. Agardh |
| 207 | Diatoms | Diatoms | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Diatoma spp. Bory |
| 208 | Eunotia spp. | Eunotia spp. | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Eunotia spp. Ehrenberg |
| 209 | Fragilaria spp. | Fragilaria spp. | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Fragilaria spp. Lyngbye |
| 210 | Navicula sect. Minusculae | Navicula sect. Minusculae | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Navicula sect. Minusculae |
| 211 | Surirella spp. | Surirella spp. | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Surirella spp. Turpin |
| 212 | Tabellaria spp. | Tabellaria spp. | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Tabellaria spp. Ehrenberg |
| 213 | Varia | Varia | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Varia |
| 214 | Diatoms, planktic | Diatom plank | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | |
| 215 | Diatoms, tychoplanktic | Diatom tycho | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | |
| 216 | Diatoms, benthic | Diatom benthic | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | |
| 217 | Aerophilous species | Aeroph spec | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Sum Aerophilic Taxa |
| 218 | Rheophilous species | Rheoph spec | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Sum Rheophilic Taxa |
| 219 | Diatoms, reworked | Diatom rew | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Sum Reworked / Tertiary Taxa | |
| 220 | Diatoms, other | Diatom oth | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Sum Unknown Ecology |
| 221 | Diatoms | Diatoms | # | Engels, Stefan | Light microscope, Zeiss [1000x magnification] | Total sum |
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