Evaporation effects as reflected in freshwaters and ostracod calcite from modern environments in Central and Northeast Yakutia (East Siberia, Russia)

Wetterich, Sebastian; Herzschuh, Ulrike; Meyer, Hanno; Pestryakova, Ludmila A; Plessen, Birgit; Lopez, C. M. Larry; Schirrmeister, Lutz

doi:10.1007/s10750-008-9505-y

Cited by 35 publications

(32 citation statements)

References 30 publications

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“…This relationship has also been established in regional studies comparing the water chemistry of various sites with the isotopic composition of widely distributed ostracod species (Wetterich et al, 2008;Van der Meeren et al, 2011). For this study, the mean δ 18 O and δ 13 C compositions of C. ilosvayi also exhibit the general isotopic composition of surface waters in the region of South Florida (Fig.…”

Section: Stable Isotope Compositions Of Cytheridella Ilosvayisupporting

confidence: 66%

“…With every molt, ostracods form a new calcite shell containing stable isotopes (δ 18 O, δ 13 C) that reflect the conditions of the surrounding water at the moment of their calcification (Xia et al, 1997a;von Grafenstein et al, 1999;Keatings et al, 2002;Wetterich et al, 2008;Decrouy et al, 2011b; Van der Meeren et al, 2011). The stable isotopic variation in shells within an ostracod population depends on the timing and duration of species-specific molting periods.…”

Section: Introductionmentioning

confidence: 99%

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Modeling calcification periods of <i>Cytheridella ilosvayi</i> from Florida based on isotopic signatures and hydrological data

Meyer

Wrozyna

Leis³

et al. 2017

Biogeosciences

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Abstract. The isotopic signatures of ostracod shells are the result of the temperature and composition of their host water and the phenology and ecology of the target species. Investigations addressing the influence of site-specific environmental variations on the isotopic ranges of ostracod shells are still rare but can provide important information on habitatdependent variations and may signify a seasonally restricted timing of calcification periods. Here we present isotopic signatures (δ 18 O ostr , δ 13 C ostr ) of living Cytheridella ilosvayi (Ostracoda) and physical, chemical, and isotopic (δD, δ 18 O water , δ 13 C DIC ) compositions of 14 freshwater habitats (rivers, lakes, canals, marshes, sinkholes) in South Florida from winter 2013 and summer 2014. We also present instrumental data of river temperatures and δ 18 O of precipitation (δ 18 O prec ) from this region. The physicochemical and isotopic compositions of the selected sites characterize the different habitats and show the influence of the source water, biological activity, and duration of exposure to the surface. Mean δ 18 O ostr and δ 13 C ostr signatures of C. ilosvayi shells correlate well with the isotopic composition of their host waters. Within-sample variabilities in repeated isotopic measurements of single ostracod shells reflect habitat-dependent ranges. The similarly high range of ostracod δ 18 O in rivers and one marsh sample indicates that both temperature and δ 18 O prec are responsible for their variation in the whole study area. Rivers and canals, which are predominantly influenced by the input and mixing of inorganic carbon from the catchment, show smaller δ 13 C ostr ranges than the marsh dominated by local fluctuations in biological activities.Based on these observations, background data of water temperatures and δ 18 O prec were used to calculate monthly δ 18 O variations in a theoretical calcite formed in rivers in Florida assuming a direct reaction on precipitation changes.The calculated values showed a high variation coupled with low mean values during the summer wet season, while during the winter dry season the variation remains small and mean values increased. Inferred configurations were used to approximate possible calcification periods of C. ilosvayi. For a plausible calcification period, mean values and ranges of δ 18 O ostr had to be equal to the theoretical calcite with a slight positive offset (vital effect). The applied model suggests a seasonal calcification period of C. ilosvayi in early spring that is probably coupled to the hydrologic cycle of Florida.

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Section: Stable Isotope Compositions Of Cytheridella Ilosvayisupporting

confidence: 66%

Section: Introductionmentioning

confidence: 99%

Modeling calcification periods of <i>Cytheridella ilosvayi</i> from Florida based on isotopic signatures and hydrological data

Meyer

Wrozyna

Leis³

et al. 2017

Biogeosciences

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“…We measured water temperature, pH, and conductivity (Wetterich еt al., 2009 a;Nazarova et al, 2011). The chemical composition of water was hydrocarbonate-chloride (Wetterich et al, 2008) with a low mineralization rate (Alekin, 1970) and low hardness. The water pH was neutral or slightly alkaline (Palagushkina et al, 2012a;Palagushkina et al, 2013).…”

Section: Methodsmentioning

confidence: 99%

Modern and Fossil Diatom Assemblages from Bol'shoy Lyakhovsky Island (New Siberian Archipelago, Arctic Siberia)

2017

SEJ

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Abstract⎯This article discusses the results of a taxonomic and ecological investigation into diatoms from polygonal ponds and quaternary permafrost deposits of Bol'shoy Lyakhovsky Island (New Siberian Archipelago) and the reconstruction of climatic changes on the island during Late Pleistocene/Holocene transition using fossil diatom assemblages from the permafrost deposits. The taxonomic list of diatoms includes 159 diatom species. The main ecological factors that determine the distribution of diatoms in the investigated data set are mean air temperature in July, рН, conductivity, water depth, and the concentration of Si 4+ and Al 3+. An increase in water depth and stable lacustrine conditions in the Lateglacial-Holocene in the ancient thermokarst lake relate to Lateglacial warming before 11860 ± 160 years BP and during the early Holocene between 11210 ± 160 and 7095 ± 60 years BP.

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“…The typification of waters by subregions showed that, for reservoirs of the Bol'shoi Lyakhovskii island and the Oigosskii Yar coast, dominant anions are hydrocarbonate and chlo rides and, for waters in the vicinity of Tiksi, the pre dominant type of water is hydrocarbonate calcium magnesium [32]. According to Alekin [33], the miner alization of the water of all studied water bodies is characterized as small and the water is very soft.…”

Section: Methodsmentioning

confidence: 99%

“…listed in Table 1. The data for these indicators are presented in the article of Wetterich et al [32]. To achieve a normal distribution of concentrations of nitrates and alumin ium, they were transformed using the logarithm.…”

Section: Methodsmentioning

confidence: 99%

Diatoms of modern bottom sediments in Siberian arctic

Palagushkina

Nazarova

Wetterich

et al. 2012

Contemp. Probl. Ecol.

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Abstract-The investigation of the species composition and ecology of diatoms of modern bottom sediments in water bodies of arctic polygonal tundra in three subregions of North Yakutiya has been carried out. As a result, 161 taxons of diatoms were determined; the determinant role of the depth, conductivity, pH of the water, and geographic latitude in their distribution was confirmed, and two complexes of species with respect to the leading abiotic factors were distinguished. The diatoms of the first complex prefer shallow water bodies of high latitudes with neutral and slightly alkaline water and relatively high conductivity. The second complex is confined to the water bodies of lower latitudes with small conductivity, as well as neutral and slightly acidic water.

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Evaporation effects as reflected in freshwaters and ostracod calcite from modern environments in Central and Northeast Yakutia (East Siberia, Russia)

Cited by 35 publications

References 30 publications

Modeling calcification periods of <i>Cytheridella ilosvayi</i> from Florida based on isotopic signatures and hydrological data

Modeling calcification periods of <i>Cytheridella ilosvayi</i> from Florida based on isotopic signatures and hydrological data

Modern and Fossil Diatom Assemblages from Bol'shoy Lyakhovsky Island (New Siberian Archipelago, Arctic Siberia)

Diatoms of modern bottom sediments in Siberian arctic

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Evaporation effects as reflected in freshwaters and ostracod calcite from modern environments in Central and Northeast Yakutia (East Siberia, Russia)

Cited by 35 publications

References 30 publications

Modeling calcification periods of &lt;i&gt;Cytheridella ilosvayi&lt;/i&gt; from Florida based on isotopic signatures and hydrological data

Modeling calcification periods of &lt;i&gt;Cytheridella ilosvayi&lt;/i&gt; from Florida based on isotopic signatures and hydrological data

Modern and Fossil Diatom Assemblages from Bol'shoy Lyakhovsky Island (New Siberian Archipelago, Arctic Siberia)

Diatoms of modern bottom sediments in Siberian arctic

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Product

Resources

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Modeling calcification periods of <i>Cytheridella ilosvayi</i> from Florida based on isotopic signatures and hydrological data

Modeling calcification periods of <i>Cytheridella ilosvayi</i> from Florida based on isotopic signatures and hydrological data