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13 results for “soda lake”
Indicative distribution map for Ecosystem Functional Group F2.6 Permanent salt and soda lakes
<p>This archive contains indicative distribution maps and profiles for <strong>F2.6 Permanent salt and soda lakes</strong>, a ecosystem functional group (EFG, level 3) of the <a href="https://global-ecosystems.org/">IUCN Global Ecosystem Typology</a> (v2.0). Please refer to Keith <em>et al.</em> (2020) for details.</p> <p>The descriptive profiles provide brief summaries of key ecological traits and processes, maps are indicative of global distribution patterns, and are not intended to represent fine-scale patterns. The maps show areas of the world containing major (value of 1, coloured red) or minor occurrences (value of 2, coloured yellow) of each ecosystem functional group. Minor occurrences are areas where an ecosystem functional group is scattered in patches within matrices of other ecosystem functional groups or where they occur in substantial areas, but only within a segment of a larger region. Given bounds of resolution and accuracy of source data, the maps should be used to query which EFG are likely to occur within areas, rather than which occur at particular point locations. Detailed methods and references for the maps are included in the profile (xml format).</p>
Dataset for "The Role of Microbial Communities in Biogeochemical Cycles and Greenhouse Gas Emissions within Tropical Soda Lakes"
<p>Here, we make available 27 raw metagenomic files in fastq.gz associated to the article: "The Role of Microbial Communities in Biogeochemical Cycles and Greenhouse Gas Emissions within Tropical Soda Lakes". This files is not paired, with forward as _1.fastq.gz and reverse as _2.fastq.gz. The abstract of manuscript is described below:<br><br></p> <p>Abstract</p> <p>Although anthropogenic activities are the primary drivers of increased greenhouse gas (GHG) emissions, it is crucial to acknowledge that wetlands are a significant source of these gases. Brazil's Pantanal, the largest tropical inland wetland, includes numerous lacustrine systems with freshwater and soda lakes. This study focuses on soda lakes to explore potential biogeochemical cycling and the contribution of biogenic GHG emissions from the water column, particularly methane. Both seasonal variations and the eutrophic status of each examined lake significantly influenced GHG emissions. Eutrophic turbid lakes (ET) showed remarkable methane emissions, likely due to cyanobacterial blooms. The decomposition of cyanobacterial cells, along with the influx of organic carbon through photosynthesis, accelerated the degradation of high organic matter content in the water column by the heterotrophic community. This process released byproducts that were subsequently metabolized in the sediment leading to methane production, more pronounced during periods of increased drought. In contrast, oligotrophic turbid lakes (OT) avoided methane emissions due to high sulfate levels in the water, though they did emit CO2 and N2O. Clear vegetated oligotrophic turbid lakes (CVO) also emitted methane, possibly from organic matter input during plant detritus decomposition, albeit at lower levels than ET. Over the years, a concerning trend has emerged in the Nhecolândia subregion of Brazil's Pantanal, where the prevalence of lakes with cyanobacterial blooms is increasing. This indicates the potential for these areas to become significant GHG emitters in the future. The study highlights the critical role of microbial communities in regulating GHG emissions in soda lakes, emphasizing their broader implications for global GHG inventories. Thus, it advocates for sustained research efforts and conservation initiatives in this environmentally critical habitat.</p> <p><strong> </strong></p>
Eight Mile Lake Research Watershed, Carbon in Permafrost Experimental Heating Research (CiPEHR): Winter ecosystem respiration measurements using soda lime, 2010-2019
The Carbon in Permafrost Experimental Heating Research (CiPEHR) project addresses the following questions: 1) Does ecosystem warming cause a net release of C from the ecosystem to the atmosphere?, 2) Does the decomposition of old C, that comprises the bulk of the soil C pool, influence ecosystem C loss?, and 3) How do winter and summer warming alone, and in combination, affect ecosystem C exchange? We are answering these questions using a combination of field and laboratory experiments to measure ecosystem carbon balance and radiocarbon isotope ratios at a warming experiment located in an upland tundra field site near Healy, Alaska in the foothills of the Alaska Range. Soda Lime absorption of CO2 over the winter season is a method of estimating cumulative soil respiration across the site.
FIGURE 3 in A new species of Enchytraeus (Enchytraeidae, Oligochaeta) from the profundal of Lake Van, the world's largest soda Lake (Turkey, East Anatolia)
FIGURE 3. Enchytraeus polatdemiri sp. n. Drawings from adult whole-mounted specimens, anterior end to the top (A) or to the left (C-D). A. Segments IV-VI, dorsal view, fragment of holotype, station 3. Dark grey: pharyngeal glands. B. Segments IV- VI, dorso-lateral view, fragment of paratype specimen, strongly contracted, station 3. Light-grey: dorsal blood vessel. Darkgrey: pharyngeal glands. C. Male copulatory organ, latero-dorsal view, with portions of convoluted vas deferens, Station 24. D. Same object as C, but focusing plane c. 30 µm beneath, vas deferens not shown. bu, bursa, ental tip; dv, dorsal blood vessel; ec, vas deferens, ectal portion, near male pore; eg, spermathecal ectal glands; en, vas deferens, ental portion, near sperm funnel; es, inner epidermal surface of bursa; gc, clitellum cells, granulocytes; ge, glandular thickening of epidermis around spermathecal ectal pores; lc, lateral chaetae; ml, male exterior lip, devoid of clitellar gland cells; mp, male pore; oa, oesophageal appendage; oe, oesophagus, compressed; pb, primary male bulb; pg, pharyngeal gland; rm, retractor muscles; sa, spermathecal ampulla; sp, secondary male papilla; se, spermathecal ectal duct.
FIGURE 4 in A new species of Enchytraeus (Enchytraeidae, Oligochaeta) from the profundal of Lake Van, the world's largest soda Lake (Turkey, East Anatolia)
FIGURE 4. Enchytraeus polatdemiri sp. nov. and selected specimens of other Enchytraeidae species; Bayesian trees based on: A, COI sequences; B, H3 sequences; C, the concatenated dataset. Numbers on nodes represent posterior probabilities values.
FIGURE 2 in A new species of Enchytraeus (Enchytraeidae, Oligochaeta) from the profundal of Lake Van, the world's largest soda Lake (Turkey, East Anatolia)
FIGURE 2. Enchytraeus polatdemiri sp. n. Drawings from whole-mounted specimens. A. Complete adult paratype specimen (on slide), stained whole mount, station 21. Latero-ventral view in 0-VI, ventro-lateral view in XI-XIII. B-D. Chaetae as seen in adult paratype specimens (unstained whole mounts) from station 24. B. Ventral bundle, segment VII. C. Chaeta from a posterior segment. D. Chaeta from a penultimate segment. E. Clitellum ventrally of a flattened specimen, paratype, unstained fragment, mounted, adult specimen from station 3. Light-grey: anterior and posterior border cells; medium grey: area with alternating granulocytes and hyalocytes; dark-grey: region with exclusively granulocytes. Dotted lines: Male glandular bulb and accessory glands beneath bursa. Abbreviations: br, brain; cb, clitellum, anterior border cells; lc, lateral chaetal bundle; ml, male exterior lip, extending mediad, covering bursa; mo, male copulatory organ; oo, oocyte; sf, sperm funnel; st, spermatheca; sv, seminal vesicle; vc, ventral chaetal bundle.
FIGURE 5 in A new species of Enchytraeus (Enchytraeidae, Oligochaeta) from the profundal of Lake Van, the world's largest soda Lake (Turkey, East Anatolia)
FIGURE 5. Barcode gap analysis of COI sequences performed by ABGD (Automatic Barcode Gap Discovery, Puillandre et al. 2012) (comp. Fig. 4). Histograms show the distribution of pairwise genetic distances (uncorrected p-distances) between each pair of specimens. The arrow indicates the gap that allows to distinguish intraspecific (left) and interspecific (right) distances for the COI region.
Data from: A review of the defining chemical properties of soda lakes and pans: an assessment on a large geographic scale of Eurasian inland saline surface waters
The aim of this study is to evaluate the definition of water chemical type, with particular attention to soda brine characteristics by assessing ionic composition and pH values on a large geographic scale and broad salinity (TDS) range of Eurasian inland saline surface waters, in order to rectify the considerable confusion about the exact chemical classification of soda lakes and pans. Data on pH and on the concentration of eight major ions were compiled into a database drawn from Austria, China, Hungary, Kazakhstan, Mongolia, Russia, Serbia, and Turkey. The classification was primarily based on dominant ions exceeding an equivalent percentage of 25 (> 25e%) of the total cations or anions, and the e% rank of dominant ions was also identified. We identified four major types: waters dominated by (1) Na-HCO3 (10.0%), (2) Na-HCO3 + CO3 (31.4%), (3) Na-Cl (45.9%), and (4) Na-SO4 (12.7%), considering only the first ion by e% rank. These major types can be divided into 30 subtypes in the dataset, taking into account the e% rank of all dominant ions. The major and subtypes of soda brine can be divided into "Soda" and "Soda-Saline" types. "Soda type" when Na+ and HCO3– + CO32– are the first in the rank of dominant ions (> 25e%), and "Soda-Saline type" when Na+ is the first in the rank of dominant cations and the sum of HCO3– + CO32– concentration exceeds 25e%, but it is not the first in the rank of dominant anions. Soda-saline type can be considered as a separate evolutionary stage between Soda and Saline types respect to the geochemical interpretation by saturation indexes of brines. The obtained overlapping ranges in distribution demonstrate that a pH measurement alone is not a reliable indicator to classify the permanent alkaline "soda type" and various other types of temporary alkaline waters.
Data from: A review of the defining chemical properties of soda lakes and pans: an assessment on a large geographic scale of Eurasian inland saline surface waters
Open the record for dataset details and reuse information.
Supplementary material 1 from: Ács É, Bíró T, Boros E, Dobosy P, Duleba M, Földi A, Kiss KT, Levkov Z, Orgoványi P, Szén OP, Trábert Z, Vadkerti E, Grigorszky I (2023) Halamphora taxa in Hungarian soda pans and shallow soda lakes detected via metabarcoding and microscopic analyses. Metabarcoding and Metagenomics 7: e111679. https://doi.org/10.3897/mbmg.7.111679
Relative abundances of Halamphora species based on microscopy and metabarcodin
Supplementary material 3 from: Ács É, Bíró T, Boros E, Dobosy P, Duleba M, Földi A, Kiss KT, Levkov Z, Orgoványi P, Szén OP, Trábert Z, Vadkerti E, Grigorszky I (2023) Halamphora taxa in Hungarian soda pans and shallow soda lakes detected via metabarcoding and microscopic analyses. Metabarcoding and Metagenomics 7: e111679. https://doi.org/10.3897/mbmg.7.111679
Supplementary Alignment 1
Supplementary material 4 from: Ács É, Bíró T, Boros E, Dobosy P, Duleba M, Földi A, Kiss KT, Levkov Z, Orgoványi P, Szén OP, Trábert Z, Vadkerti E, Grigorszky I (2023) Halamphora taxa in Hungarian soda pans and shallow soda lakes detected via metabarcoding and microscopic analyses. Metabarcoding and Metagenomics 7: e111679. https://doi.org/10.3897/mbmg.7.111679
Supplementary Alignment 2
Supplementary material 2 from: Ács É, Bíró T, Boros E, Dobosy P, Duleba M, Földi A, Kiss KT, Levkov Z, Orgoványi P, Szén OP, Trábert Z, Vadkerti E, Grigorszky I (2023) Halamphora taxa in Hungarian soda pans and shallow soda lakes detected via metabarcoding and microscopic analyses. Metabarcoding and Metagenomics 7: e111679. https://doi.org/10.3897/mbmg.7.111679
Pairwise p-distance values and number of differences
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