Engels, Stefan; Lane, Christine S; Hoek, Wim Z; Baneschi, Ilaria; Bouwman, Annerieke; Brogan, Eilis; Ramsey, Christopher Bronk; Collins, James A; de Bruijn, Renee; Haliuc, Aritina; Heiri, Oliver; Hubay, Katalin; Jones, Gwydion; Jones, Vivienne; Laug, Andreas; Merkt, Josef; Muschitiello, Francesco; Müller, Meike; Peters, Tom; Peterse, Francien; Pueschel, Ashley; Staff, Richard A; ter Schure, Anneke; van den Bos, Valerie; Wagner-Cremer, Frederike (2024): Individual valve counts of diatoms in sediment core Haem13 from lake Hämelsee [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.964521, In: Engels, Stefan; Lane, Christine S; Hoek, Wim Z; Baneschi, Ilaria; Bouwman, Annerieke; Brogan, Eilis; Ramsey, Christopher Bronk; Collins, James A; de Bruijn, Renee; Haliuc, Aritina; Heiri, Oliver; Hubay, Katalin; Jones, Gwydion; Jones, Vivienne; Laug, Andreas; Merkt, Josef; Muschitiello, Francesco; Müller, Meike; Peters, Tom; Peterse, Francien; Pueschel, Ashley; Staff, Richard A; ter Schure, Anneke; van den Bos, Valerie; Wagner-Cremer, Frederike (2024): Lake Hämelsee: Lateglacial sedimentological, palaeoecological and geochemical data [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.964375
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Abstract:
This dataset provides counts of diatom valves for the Lateglacial sediment sequence retrieved from Lake Hämelsee (Germany) in 2013. Counts per taxon are presented against both depth (m) and age (cal yr. BP). The diatom data provides information on Lateglacial ecosystem dynamics and the dataset was used to interpret changes in aquatic diversity as well as in palaeolimnological conditions. A total of 78 samples were selected for diatom analysis using 2-5 cm sample intervals throughout the Lateglacial section of the core sequence, with a higher sampling resolution (1 cm intervals) around key transitions. Organic matter was removed from the samples (ca. 0.01 grams dried sediment) by oxidation using 5 ml of H2O2 (30%) and heating in a water bath at 70 °C for 24-28 hrs. Subsequently, a few drops of HCl (50%) were added to remove residual H2O2 and carbonates. Samples were washed by adding distilled water, shaking vigorously, centrifuging at 1200 rpm for 4 minutes, and removing the liquid using a pipette. This process was repeated 5 times, and a few drops of ammonia (NH3) were added to the solution prior to the final wash to prevent clumping of diatoms. Diatom slides were mounted using Naphrax and diatoms were identified using Krammer and Lange-Bertalot (1986–1991) and Camburn and Charles (2000). For several samples the target count sum of 300 diatom valves could not be reached due to low concentrations or poor diatom preservation. Prior to analysis and interpretation, and where possible, neighbouring samples with a low count sum were amalgamated until a count of at least 100 valves was reached; if this was not possible the samples were deleted from our dataset prior to subsequent analysis (note that these samples are still included in the dataset provided here). All analyses were performed in the laboratories of University College London, UK.
Keyword(s):
Funding:
European Cooperation in Science and Technology (COST), grant/award no. COST action ES0907: ES0907 - INTegrating Ice core, MArine and TErrestrial records - 60,000 to 8000 years ago (INTIMATE)
Coverage:
Latitude: 52.766667 * Longitude: 9.316667
Date/Time Start: 2013-07-08T09:00:00 * Date/Time End: 2013-07-12T17:00:00
Minimum Elevation: 22.0 m * Maximum Elevation: 22.0 m
Event(s):
Haemelsee_Haem13 * Latitude Start: 52.766667 * Longitude Start: 9.316667 * Latitude End: 52.766667 * Longitude End: 9.316667 * Date/Time Start: 2013-07-08T09:00:00 * Date/Time End: 2013-07-12T17:00:00 * Elevation Start: 22.0 m * Elevation End: 22.0 m * Lake water depth: 3.4 m * Location: Lake Haemelsee, Germany * Method/Device: Niederreiter Piston corer (NPC) * Comment: Lake sediment sequence retrieved using a 60 mm piston corer deployed from a floating platform.
Parameter(s):
# | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
---|---|---|---|---|---|---|
1 | ORDINAL NUMBER | Ord No | Engels, Stefan | Geocode | ||
2 | DEPTH, sediment/rock | Depth sed | m | Engels, Stefan | Geocode | |
3 | AGE | Age | ka BP | Engels, Stefan | Geocode | |
4 | Lindavia bodanica | L. bodanica | # | Engels, Stefan | Counting valves | |
5 | Pantocsekiella delicatula | P. delicatula | # | Engels, Stefan | Counting valves | |
6 | Diatoms, centrales indeterminata | Diatom cen indet | # | Engels, Stefan | Counting valves | Cyclotella sensu lato type |
7 | Discotella stelligera | D. stelligera | # | Engels, Stefan | Counting valves | |
8 | Pantocsekiella ocellata | P. ocellata | # | Engels, Stefan | Counting valves | |
9 | Cocconeis sp. | Cocconeis sp. | # | Engels, Stefan | Counting valves | sp. 1 |
10 | Cocconeis sp. | Cocconeis sp. | # | Engels, Stefan | Counting valves | sp. 2 |
11 | Cocconeis neodiminuta | C. neodiminuta | # | Engels, Stefan | Counting valves | |
12 | Cocconeis sp. | Cocconeis sp. | # | Engels, Stefan | Counting valves | agg. |
13 | Cocconeis placentula | C. placentula | # | Engels, Stefan | Counting valves | |
14 | Asterionella formosa | A. formosa | # | Engels, Stefan | Counting valves | |
15 | Nepula vitiosa | N. vitiosa | # | Engels, Stefan | Counting valves | |
16 | Nitzschia lacuum | N. lacuum | # | Engels, Stefan | Counting valves | |
17 | Nitzschia gracilis | N. gracilis | # | Engels, Stefan | Counting valves | |
18 | Nitzschia sp. | Nitzschia sp. | # | Engels, Stefan | Counting valves | sp. 1 |
19 | Nitzschia sp. | Nitzschia sp. | # | Engels, Stefan | Counting valves | agg. |
20 | Nitzschia dissipata | N. dissipata | # | Engels, Stefan | Counting valves | |
21 | Nitzschia obtusa var. brevissima | N. obtusa var. brevissima | # | Engels, Stefan | Counting valves | |
22 | Fragilaria sp. | Fragilaria sp. | # | Engels, Stefan | Counting valves | agg. sensu lato |
23 | Fragilariforma lata | F. lata | # | Engels, Stefan | Counting valves | |
24 | Staurosirella pinnata var. minutissima | S. pinnata var minutissima | # | Engels, Stefan | Counting valves | |
25 | Fragilariforma constricta | F. constricta | # | Engels, Stefan | Counting valves | |
26 | Staurosira construens | S. construens | # | Engels, Stefan | Counting valves | |
27 | Pseudostaurosira brevistriata | P. brevistriata | # | Engels, Stefan | Counting valves | |
28 | Staurosirella pinnata var. intercedens | S. pinnata var. intercedens | # | Engels, Stefan | Counting valves | |
29 | Staurosirella pinnata var. acuminata | S. pinnata var. acuminata | # | Engels, Stefan | Counting valves | |
30 | Fragilaria recapitellata | F. recapitellata | # | Engels, Stefan | Counting valves | |
31 | Staurosirella pinnata | S. pinnata | # | Engels, Stefan | Counting valves | |
32 | Pleurosigma sp. | Pleurosigma sp. | # | Engels, Stefan | Counting valves | agg. |
33 | Stauroforma exiguiformis | S. exiguiformis | # | Engels, Stefan | Counting valves | |
34 | Diatoma sp. | Diatoma sp. | # | Engels, Stefan | Counting valves | agg. |
35 | Navicula radiosa | N. radiosa | # | Engels, Stefan | Counting valves | |
36 | Navicula exilis | N. exilis | # | Engels, Stefan | Counting valves | |
37 | Navicula sp. | Navicula sp. | # | Engels, Stefan | Counting valves | sp. 1 |
38 | Cavinula cocconeiformis | C. cocconeiformis | # | Engels, Stefan | Counting valves | |
39 | Navicula sp. | Navicula sp. | # | Engels, Stefan | Counting valves | sensu lato (agg.) |
40 | Navicula sp. | Navicula sp. | # | Engels, Stefan | Counting valves | sp. 2 |
41 | Khursevichia jentzschii | K. jentzschii | # | Engels, Stefan | Counting valves | |
42 | Navicula lanceolata | N. lanceolata | # | Engels, Stefan | Counting valves | |
43 | Placoneis elginensis | P. elginensis | # | Engels, Stefan | Counting valves | |
44 | Nupela tenuicephala | N. tenuicephala | # | Engels, Stefan | Counting valves | |
45 | Sellaphora pupula | S. pupula | # | Engels, Stefan | Counting valves | |
46 | Navicula sp. | Navicula sp. | # | Engels, Stefan | Counting valves | sp. 3 |
47 | Navicula cincta | N. cincta | # | Engels, Stefan | Counting valves | |
48 | Navicula sp. | Navicula sp. | # | Engels, Stefan | Counting valves | sp. 4 |
49 | Fallacia pygmaea | F. pygmaea | # | Engels, Stefan | Counting valves | |
50 | Navicula sp. | Navicula sp. | # | Engels, Stefan | Counting valves | sp. 5 |
51 | Fragilaria sp. | Fragilaria sp. | # | Engels, Stefan | Counting valves | needle-like |
52 | Tabellaria sp. | Tabellaria sp. | # | Engels, Stefan | Counting valves | agg. |
53 | Tabellaria flocculosa | T. flocculosa | # | Engels, Stefan | Counting valves | |
54 | Tabellaria fenestrata | T. fenestrata | # | Engels, Stefan | Counting valves | |
55 | Tabellaria quadriseptata | T. quadriseptata | # | Engels, Stefan | Counting valves | |
56 | Aulacoseira sp. | Aulacoseira sp. | # | Engels, Stefan | Counting valves | agg. |
57 | Eunotia curvata | E. curvata | # | Engels, Stefan | Counting valves | |
58 | Eunotia flexuosa | E. flexuosa | # | Engels, Stefan | Counting valves | |
59 | Eunotia rhomboidea | E. rhomboidea | # | Engels, Stefan | Counting valves | |
60 | Eunotia sp. | Eunotia sp. | # | Engels, Stefan | Counting valves | sp. 1 |
61 | Eunotia sp. | Eunotia sp. | # | Engels, Stefan | Counting valves | sp. 2 |
62 | Denticula kuetzingii | D. kuetzingii | # | Engels, Stefan | Counting valves | |
63 | Denticula sp. | Denticula sp. | # | Engels, Stefan | Counting valves | agg. |
64 | Denticula tenuis | D. tenuis | # | Engels, Stefan | Counting valves | |
65 | Encyonema minutum | E. minutum | # | Engels, Stefan | Counting valves | |
66 | Cymbella parva | C. parva | # | Engels, Stefan | Counting valves | |
67 | Encyonema silesiacum | E. silesiacum | # | Engels, Stefan | Counting valves | |
68 | Cymbella sp. | Cymbella sp. | # | Engels, Stefan | Counting valves | sp. 1 |
69 | Cymbella sp. | Cymbella sp. | # | Engels, Stefan | Counting valves | agg. |
70 | Achnanthes sp. | Achnanthes sp. | # | Engels, Stefan | Counting valves | sensu lato (agg.) |
71 | Platessa conspicua | P. conspicua | # | Engels, Stefan | Counting valves | |
72 | Psammothidium helveticum | P. helveticum | # | Engels, Stefan | Counting valves | |
73 | Gogorevia exilis | G. exilis | # | Engels, Stefan | Counting valves | |
74 | Epithemia sorex | E. sorex | # | Engels, Stefan | Counting valves | |
75 | Epithemia adnata | E. adnata | # | Engels, Stefan | Counting valves | |
76 | Epithemia gibba | E. gibba | # | Engels, Stefan | Counting valves | |
77 | Epithemia turgida | E. turgida | # | Engels, Stefan | Counting valves | |
78 | Epithemia sp. | Epithemia sp. | # | Engels, Stefan | Counting valves | agg. |
79 | Stauroneis anceps | S. anceps | # | Engels, Stefan | Counting valves | |
80 | Stauroneis construens | S. construens | # | Engels, Stefan | Counting valves | |
81 | Stauroneis sp. | Stauroneis sp. | # | Engels, Stefan | Counting valves | sp. 1 |
82 | Meridion circulare | M. circulare | # | Engels, Stefan | Counting valves | |
83 | Diploneis sp. | Diploneis sp. | # | Engels, Stefan | Counting valves | agg. |
84 | Amphora subconstricta | A. subconstricta | # | Engels, Stefan | Counting valves | |
85 | Halamphora thumensis | H. thumensis | # | Engels, Stefan | Counting valves | |
86 | Amphora pediculus | A. pediculus | # | Engels, Stefan | Counting valves | |
87 | Amphora copulata | A. copulata | # | Engels, Stefan | Counting valves | |
88 | Amphora ovalis | A. ovalis | # | Engels, Stefan | Counting valves | |
89 | Gomphonema parvulum | G. parvulum | # | Engels, Stefan | Counting valves | |
90 | Gomphonema sp. | Gomphonema sp. | # | Engels, Stefan | Counting valves | agg. |
91 | Gomphonema sp. | Gomphonema sp. | # | Engels, Stefan | Counting valves | sp. 1 |
92 | Gomphonema clevei | G. clevei | # | Engels, Stefan | Counting valves | |
93 | Gomphonema brebissonii | G. brebissonii | # | Engels, Stefan | Counting valves | |
94 | Planothidium joursacense | P. joursacense | # | Engels, Stefan | Counting valves | |
95 | Pseudostaurosira spp. | Pseudostaurosira spp. | # | Engels, Stefan | Counting valves | agg. |
96 | Pseudostaurosira robusta | P. robusta | # | Engels, Stefan | Counting valves | |
97 | Placoneis gastrum | P. gastrum | # | Engels, Stefan | Counting valves |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
6862 data points
Download Data
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