Hydrobiological conditions of sapropel formation in lakes in the south of Western Siberia

Yermolaeva, N. I.; Zarubina, E. Yu.; Romanov, Roman E.; Леонова, Г.А.; Пузанов, А. В.

doi:10.1134/s0097807816010073

Cited by 17 publications

(13 citation statements)

References 6 publications

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“…Primary producers (phytoplankton, phytoperifiton, phytobenthos, and macrophytes) in the reservoir during photosynthesis create organic matter that is processed in the food chain and enters the bottom sediments. All subsequent stages after photosynthesis are stages of mineralization and destruction [33]. The interaction of the production and destruction of organic matter ultimately determines, along with other factors, the parameters of the bottom sediments.…”

Section: Biota Contribution In Small Lakes (The South Of Western Sibe...mentioning

confidence: 99%

“…However, the autochthonous organic matter was significantly modified while recycled in the "microbial loop", and this notably affected the final forms of compounds coming to the sapropel. The significant biogenic contribution to the organic matter flow into the bottom sediments of small lakes in the south of Western Siberia was considered circumstantially in various papers [33][34][35].…”

Section: Biota Contribution In Small Lakes (The South Of Western Sibe...mentioning

confidence: 99%

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Authigenic Carbonates in the Water–Biota–Bottom Sediments’ System of Small Lakes (South of Western Siberia)

2020

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We studied 46 small, drainless lakes in various landscape types: The sub-taiga (Vasyugan plain), forest–steppe (Baraba lowland), and steppe and subzone of ribbon forests (Kulunda plain). Sampling of lake components (sediments, water, and biota) was performed. The materials were analyzed via a combination of modern analytical methods (atomic absorption spectroscopy, X-ray fluorescence, scanning electron microscopy and X-ray diffractometry). It was found that in the south of Western Siberia, lakes with a bicarbonate-sodium water composition are widespread against the background of general landscape zoning. This composition contributes to the abundant growth of biota in the lakes, which leads to the processes of authigenic carbonate formation from calcite–dolomite series and aragonite on geochemical barriers, i.e., drifting biota–water, submerged biota–water, and water–bottom sediments against a background of terrigenous demolition and organic matter accumulation. The article shows the differences in the composition and structure of low-temperature carbonate minerals formed on various geochemical barriers. It was found that low-magnesium calcite and aragonite are the most common authigenic carbonates in small lakes in the south of Western Siberia and are formed on all three geochemical barriers in lakes. High-magnesium calcites and Ca-excess dolomites are formed only at the water–bottom sediment barrier in lakes with HCO3–Na and Cl–HCO3–Na water composition at pH > 9 and with a total dissolved solids > 3 g·L−1 (in some lakes of HCO3-Na composition with a TDS < 3 g·L−1 and pH > 9).

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Section: Biota Contribution In Small Lakes (The South Of Western Sibe...mentioning

confidence: 99%

Section: Biota Contribution In Small Lakes (The South Of Western Sibe...mentioning

confidence: 99%

Authigenic Carbonates in the Water–Biota–Bottom Sediments’ System of Small Lakes (South of Western Siberia)

2020

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“…Sapropel could have an autochthonous origin if the formation had been caused by the sedimentation of the lake biomass, as well as allochthonous origin in cases where the lake biomass deposits were supported by additional biomass and organic compounds (humic substances) from inbound rivers. Higher levels of organic substances are found in sediments of autochthonous origin (Strakhovenko et al, 2014;Yermolaeva et al, 2016).…”

Section: Characteristics Of Sapropelmentioning

confidence: 99%

Sapropel – Mining Characteristics and Potential Use in Medicine

Vanadziņš

Mārtiņsone

Kļaviņa

et al. 2022

Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences.

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Found in lakes, freshwater sapropel is a sediment with a fine structure containing more than 10% of organic matter as well as residues of aquatic organisms with a small content of inorganic components of biogenic origin and mixture of mineral ingredients. The mud was first used in medicine by ancient Greeks, and it gained more popularity together with development of balneology in Europe in the 19th century as a remedy for several diseases. The last century also brought wider popularity in its cosmetic use. Despite its wide usage, mechanisms behind its effects are not so clear yet. Broad but fragmented studies on the effects of sapropel are available, but few have used modern research methods. There is evidence suggesting that its positive health effects are linked to its thermal capacity, ability of penetration in tissues and biological activity of its components, e.g., humic substances. Evidence also suggests antimicrobial activity and positive effects on skin regeneration. This review aims at summarising available knowledge on the structure and composition of sapropel and its effects on the human body, as well as its potential for further evidence-based use in medicine and cosmetics.

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“…Although disputed among marine geologists, sedimentologists, petrologists, and limnologists, the term sapropels (Gr., sapros -rotten, pelos -soil) (Stein, 2014) is generally assigned to the dark-colored, fine-grained (<0.1 mm), organic carbon-enriched (>2% by dry weight) discrete sediments deposited in stagnant, stratified water bodies (Emeis, 2009;Kidd et al, 1978;Rossignol-Strick et al, 1982;Schnurrenberger et al, 2003;Stein, 2014). Structurally, sapropels are multicomponent biogenic systems comprising a matrix of organics such as humic substances, lipids, heteropolysaccharides, and proteins, mostly derived from detrital phytoplankton, zooplankton (Leonova et al, 2011;Yermolaeva et al, 2016) or terrestrial plant biomass (Bulgăreanu et al, 1981;Bulgăreanu et al, 1989) combined with fine particles of sedimentary minerals (silicates, carbonates). Thus, sapropels appear as instable, soft sludge buried on lakes' or sea floors.…”

Section: Definition Composition and Genesismentioning

confidence: 99%

The Saline Organic-Rich Sediments: a Short Overview

Banciu¹

2018

Air and Water Components of the Environment Conference

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The saline organic-rich sediments: A short overview. Organicrich sediments (or 'sapropels') are complex organo-mineral matrices that form at the O2-depleted bottom of stagnant water basins. Besides geochemical transformations, slow rate microbially-driven processes underpin the early diagenesis of these sediments. The fossil sapropels found in various marine or lacustrine environments are known as proxies for past climate or hydrological fluctuations. Present-day organic-rich sediments have been described both in fresh ('gyttja') and brackish or saline waters mostly in the boreal zones. They are currently used for agricultural or therapeutic purposes. Few saline lakes with significant deposits of modern sapropels are known worldwide. On Romanian territory, saline lakes with substantial organic-rich sediments are found in the Transylvanian Basin (e.g. Ursu Lake, Sovata) and in the SouthEastern part (e.g. the inland, athalassohaline Amara, and the coastal, thalassohaline Techirghiol lakes). The exploration of microbial diversity inhabiting the saline sapropels will improve our current understanding on the processes leading to formation and mineralization of organic-rich sediments of economic value.

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Hydrobiological conditions of sapropel formation in lakes in the south of Western Siberia

Cited by 17 publications

References 6 publications

Authigenic Carbonates in the Water–Biota–Bottom Sediments’ System of Small Lakes (South of Western Siberia)

Authigenic Carbonates in the Water–Biota–Bottom Sediments’ System of Small Lakes (South of Western Siberia)

Sapropel – Mining Characteristics and Potential Use in Medicine

The Saline Organic-Rich Sediments: a Short Overview

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