Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
152
datasets available to search
ShareScore release 0.7.1
Dataset results
152 results for “lake sediment”
Data from: Long livestock farming history and human landscape shaping revealed by lake sediment DNA
Open the record for dataset details and reuse information.
Data from: Estimating species colonization dates using DNA in lake sediment
Open the record for dataset details and reuse information.
Does salinization impact long-term Daphnia assemblage dynamics? Evidence from the sediment egg bank in a small hard-water lake
Open the record for dataset details and reuse information.
Plant DNA metabarcoding record from a sediment core from Lake Naleng, southeastern Tibetan Plateau
Open the record for dataset details and reuse information.
Arctic shrub colonization lagged peak postglacial warmth: Molecular evidence in lake sediment from Arctic Canada
Open the record for dataset details and reuse information.
Lake water and sediments chemistry data along with temporal data on environmental drivers
Open the record for dataset details and reuse information.
Deciphering linkages between microbial communities and priming effects in lake sediments with different salinity
<p>Priming effects (PEs) and their associated microbial drivers are not well studied in lake sediments. Here, we investigated PEs and underlying potential microbial drivers in the sediments of lakes on the Qinghai-Tibetan Plateau (QTP). Sediments were collected from three QTP lakes with different salinity, followed by microcosm construction and subsequent incubation at in-situ temperature. The sediment microcosms were amended with <sup>13</sup>C-labeled glucose, on which PE intensities were evaluated in the incubations on the 7<sup>th</sup> and 42<sup>nd</sup> day. Positive PEs were observed in all the studied lake sediment microcosms. PE intensities exhibited significantly (<i>P</i> < 0.05) linear correlations with most of the measured physicochemical factors (e.g., salinity, sediment total nitrogen/phosphorus and ratios of carbon: nitrogen), and such linear correlations were inverse for the early (i.e., on the 7<sup>th</sup> day) and late (i.e., on the 42<sup>nd</sup> day) PEs. Prokaryotic and fungal community compositions significantly changed owing to glucose addition in the studied lake microcosms, suggesting that both prokaryotes and fungi may contribute to the observed PEs. Network analysis showed that the numbers of positive correlations between fungal taxa and other microorganisms increased with the enhancement of the late PE intensity, suggesting that fungi and associated co-metabolisms may play key roles in late PEs in this study. Collectively, this study gives new insights into PE intensity and underlying microbial drivers of PE in lake sediments, and such knowledge is of great importance to understanding organic matter mineralization in lake ecosystems.</p>
Data from: Seasonal characteristics of phosphorus sorption by sediments from plain lakes with different trophic statuses
Phosphorus (P) sorption in sediments plays a significant role in trophic status of a lake. This study investigated the characteristics of P sorption in sediments from three lakes with different trophic statuses (moderately eutrophic, lightly eutrophic, and moderately trophic) through kinetic, batch equilibrium, and thermodynamic experiments. Results show that pseudo-second-order kinetics best describe P sorption in sediments from the three lakes. Fitting by modified Langmuir and Freundlich isotherms indicate that the moderately trophic lake sediments has higher sorption capacity (maximum of 0.848 mg g-1 at 35 °C) than the sediments of the other two lakes at different temperatures (5, 15, 25, and 35 °C). Thermodynamic results indicate that the process of P sorption of the three sediments are spontaneous, entropy-driven, and endothermic reactions. The risk of P release in sediments was analyzed according to the calculated results of isotherms combined with the change in P fraction. Sediments from the moderately eutrophic lake act as a source in summer. The lightly eutrophic and moderately trophic lakes act as sources in spring and winter, and a pool in summer and autumn, respectively. Furthermore, the amounts of reductant-soluble P (RS-P), calcium bound P (Ca-P), and iron bound P (Fe-P) are significantly related to the sorption capacity of sediments from the three lakes (p<0.05). The different sediments have the different P release risk, and P fraction in sediment is one of the significant factors of P sorption.
Fig. 1 in Bryozoan statoblasts from lake sediments in Madagascar, including two new species
Fig. 1. Map (left) showing the location of Lake Sofia within Madagascar, in relation to the capital city of Antananarivo, and (right) showing the location of the SOF3 core within Lake Sofia.
Fig. 2. A in Bryozoan statoblasts from lake sediments in Madagascar, including two new species
Fig. 2. A stratigraphic graph displaying the total number of plumatellid bryozoan statoblast valves found in the SOF3 wide diameter core from Lake Sofia, Madagascar. Each bar represents the number of valves found in 30 cm3 of sediment.
Grain size, magnetic susceptibility and geochemical records from Lake Ebinur sediments
Open the record for dataset details and reuse information.
Sediment hydraulic conductivity of a large fresh water lake
<p>This dataset measured the hydraulic conductivity of lake sediment in Poyang Lake area, China. The data is observed by field investigation, samplings and in-situ tests. The results will be helpful to learn the sediment structure and characteristics in the large fresh lake area. Data will be available on request.</p>
Supplementary material 1 from: Biessy L, Pearman JK, Waters S, Vandergoes MJ, Wood SA (2022) Metagenomic insights to the functional potential of sediment microbial communities in freshwater lakes. Metabarcoding and Metagenomics 6: e79265. https://doi.org/10.3897/mbmg.6.79265
Figures S1–S6
Supplementary material 2 from: Biessy L, Pearman JK, Waters S, Vandergoes MJ, Wood SA (2022) Metagenomic insights to the functional potential of sediment microbial communities in freshwater lakes. Metabarcoding and Metagenomics 6: e79265. https://doi.org/10.3897/mbmg.6.79265
Tables S1, S2
Figure 5 in The microplastic pattern in Turkish lakes: sediment and bivalve samples from Çıldır Lake Almus Dam Lake, and Kartalkaya Dam Lake
Figure 5. Microplastic abundance (per individual and g soft tissue fresh / wet weight) (a), polymer characterization (b), and shape (c) of microplastics collected from bivalve samples from three lakes. Different capitals (A, B, C) show significant differences among sampling stations. Different letters (a and b) show significant differences among bivalve species.
FIGURE 10 in Cyclotella petenensis and Cyclotella cassandrae, two new fossil diatoms from Pleistocene sediments of Lake Petén-Itzá, Guatemala, Central America
FIGURE 10. Correlation between valve size and the number of CFP in Cyclotella petenensis sp. nov.
Sediment Sr-Nd Isotopic Composition in Potential Source Areas of Qarhan Lake Sediments
Open the record for dataset details and reuse information.
Methanotrophic flexibility of 'Ca. Methanoperedens' and its interactions with sulfate-reducing bacteria in the sediment of meromictic Lake Cadagno
<p><span>Supplementary Tables 2- 21 (as a single spreadsheet)</span></p>
Global acceleration of lake sediment accumulation rates associated with recent human population growth and landuse changes
<p>These datasets include the spatial coordinates and the digitized temporal rates of lake sedimentation expressed as Sediment Accumulation Rates (SAR; mm/year) and Mass Accumulation Rate (MAR; g/cm<sup>2</sup>/year) presented in Baud et al. (2021).</p> <p>Baud, A., Jenny, JP., Francus, P. and Gregory-Eaves, I. Global acceleration of lake sediment accumulation rates associated with recent human population growth and land-use changes. <em>J Paleolimnol</em> (2021). https://doi.org/10.1007/s10933-021-00217-6 </p>
Long-term environmental changes in the Canadian boreal zone: Synthesizing temporal trends from lake sediment archives to inform future sustainability
<ul> <li>Lead (Pb) concentration and chlorophyll <em>a</em> data</li> </ul> <p>Original publication: Gros, M., Zilkey D. R., Griffiths, K. T., Pham, J., MacKeigan, P. W., Taranu, Z. E., Aulard, C., Baud, A., Garner, R. E., Ghanbari, H., Lachapelle, M., Monchamp, M-È, Paquette, C., Antoniades, D., Francus, P., Smol, J. P. & Gregory-Eaves, I. (2023). Long-term environmental changes in the Canadian boreal zone: Synthesizing temporal trends from lake sediment archives to inform future sustainability. <em>Environmental Reviews</em>, <em>31</em>(3). https://doi.org/10.1139/er-2023-0006.</p>
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.