Sampling, Sample Preparation and ICP‐MS Chemical Analysis of Lake Baikal Sponges

Paradina, Ludmila Ph.; Куликова, Н. Н.; Сутурин, А. Н.; Saibatalova, Yelena V.

doi:10.1111/j.1751-908x.2004.tb00739.x

Cited by 11 publications

(8 citation statements)

References 3 publications

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“…22 O enxofre está presente nas amostras de esponjas do Lago do Encanto (0,36 ± 0,01%) em concentração muito superior a encontrada nas amostras do Igarapé Mapi (0,12 ± 0,01%) (Figura 5), porém este elemento é descrito com concentrações próximas para as duas bacias. 13,26 Para esponjas dulcícolas do lago Baikal, na Rússia, o enxofre não foi descrito, 30,31 apesar da elevada concentração do mesmo em suas águas. 32 Os padrões distintos de absorção de metais em relação à disponibilidade na água contribuem para a diferenciação quimiotaxonômica de espécies, gêneros e mesmo para famílias, sendo o enxofre um possível indicador taxonômico.…”

Section: Analise Quantitativaunclassified

Elemental Composition of Freshwater SpongeMetania fittkauiVolkmer-Ribeiro

Barros¹,

Volkmer‐Ribeiro²,

Silva³

et al. 2014

Revista Virtual De Química

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In the Amazon there is a wide variety of freshwater sponges and despite the extent of occurrence and abundance of genus Metania and Drulia, only the second has inorganic composition studies. In this study we used EDXRF to determine the elemental composition of the species Metania fittkaui upon specimens sampled in Negro and Tapajós rivers. In addition to silicon, the elements S, Cl, V, Cu and Fe were detected in all samples. The absence of aluminum in this species was a significant difference in relation to the genus Drulia which has been studied in detail previously and may represent a chemotaxonomic characteristic of the genus.

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Section: Analise Quantitativaunclassified

Elemental Composition of Freshwater SpongeMetania fittkauiVolkmer-Ribeiro

Barros¹,

Volkmer‐Ribeiro²,

Silva³

et al. 2014

Revista Virtual De Química

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“…Elemental and strontium isotope compositions are similar except for Pb and to a lesser extent for Ba, Cu, Al, and Sr (Table 2). Probably, minor differences in water chemistry, especially in Pb, are controlled in some way by biochemical processes (see, for example, Paradina et al 2004 for study of sponge chemistry). Probably, minor differences in water chemistry, especially in Pb, are controlled in some way by biochemical processes (see, for example, Paradina et al 2004 for study of sponge chemistry).…”

Section: Basic Information About the Lake Systemsmentioning

confidence: 99%

Tectonics of the Baikal Rift Deduced from Volcanism and Sedimentation: A Review Oriented to the Baikal and Hovsgol Lake Systems

Ivanov

Demonterova

2009

Biosilica in Evolution, Morphogenesis, and Nanobiotechnology

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As known from inland sedimentary records, boreholes, and geophysical data, the initiation of the Baikal rift basins began as early as the Eocene. Dating of volcanic rocks on the rift shoulders indicates that volcanism started later, in the Early Miocene or probably in the Late Oligocene. Prominent tectonic uplift took place at about 20 Ma, but information (from both sediments and volcanics) on the initial stage of the rifting is scarce and incomplete. A comprehensive record of sedimentation derived from two stacked boreholes drilled at the submerged Akademichesky ridge indicates that the deep freshwater Lake Baikal existed for at least 8.4 Ma, while the exact formation of the lake in its roughly present-day shape and volume is unknown. Four important events of tectonic/environmental changes at about approximately 7, approximately 5, approximately 2.5, and approximately 0.1 Ma are seen in that record. The first event probably corresponds to a stage of rift propagation from the historical center towards the wings of the rift system. Rifting in the Hovsgol area was initiated at about this time. The event of ~5 Ma is a likely candidate for the boundary between slow and fast stages of rifting. It is reflected in a drastic change of sedimentation rate due to isolation of the Akademichesky ridge from the central and northern Lake Baikal basins. The youngest event of 0.1 Ma is reflected by the (87)0Sr/ (86)Sr ratio increase in Lake Baikal waters and probably related to an increasing rate of mountain growth (and hence erosion) resulting from glacial rebounding. The latter is responsible for the reorganization of the outflow pattern with the termination of the paleo-Manzurka outlet and the formation of the Angara outlet. The event of approximately 2.5 Ma is reflected in the decrease of the (87)Sr/(86)Sr and Na/Al ratios in Lake Baikal waters. We suggest that it is associated with a decrease of the dust load due to a reorganization of the atmospheric circulations in Mainland Asia. All these tectonic and climatic events could (and actually did) influence the biota of Lake Baikal. The Hovsgol rift basin was shaped to its recent form between 5.5 and 0.4 Ma. However, freshwater Lake Hovsgol appeared only in the latest pre-Holocene time as a result of meltwater inflow and increase of atmospheric precipitations during the Bølling-Allerød warming. Prior to this, a significantly smaller, saline outflow-free precursor of Lake Hovsgol existed. It explains why two, now connected, lakes of similar water chemistry within similar climatic and tectonic conditions differ so much in their biodiversity.

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“…fibrous protein. However, the data about the element composition of Lake Baikal sponges are scarce, and they were mainly received by destructive analytical methods, such as inductively coupled plasma mass spectrometry (ICP MS), colorimetric titration and silicate analysis, atomic emission spectrometry (AES), atomic absorption spectrometry (AAS), as well as nondestructive instrumental neutron activation analysis (INAA) . The information on the abundance of the elements such as Cl, Br, Na, K, and S in Baikal sponges was totally lacking.…”

Section: Introductionmentioning

confidence: 99%

Determination of elemental composition of Lake Baikal sponges by wavelength dispersive X‐ray fluorescence spectrometry

2013

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Sponge endemic species inhabit the Lake Baikal from the ancient times. Because the sponges are the biological filters of the Baikal water and they contribute greatly to silicon circulation in the lake, it is crucial to analyze their composition. Only a few publications report the analytical data concerning the element composition of Lake Baikal sponges. However, the analytical data were mainly obtained by destructive methods. No data on the concentrations of some alkaline and volatile elements are available so far. This article describes the application of wavelength dispersive X‐ray fluorescence spectrometry to study the sponges of Lubomirskia baicalensis, Baikalospongia bacillifera, and Baikalospongia recta species collected at the littoral part of the Beryozovy Cape in the Southern Baikal. The concentrations of 19 elements Na, Mg, Al, Si, P, S, Cl, K, Ca, Ti, Mn, Fe, Ni, Cu, Zn, Br, Rb, Sr, and Ba have been determined. In this article, we discuss the problem of selecting calibration samples for wavelength dispersive X‐ray fluorescence spectrometry, because appropriate reference samples are not available. The synthetic specimens, prepared by mixing plant certified reference materials and silicon dioxide in certain proportions, were proposed for calibration. The compositions of sponges cleaned from mineral particles and symbiotic organisms, as well as unwashed sponges, have been compared. Copyright © 2013 John Wiley & Sons, Ltd.

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Sampling, Sample Preparation and ICP‐MS Chemical Analysis of Lake Baikal Sponges

Cited by 11 publications

References 3 publications

Elemental Composition of Freshwater SpongeMetania fittkauiVolkmer-Ribeiro

Elemental Composition of Freshwater SpongeMetania fittkauiVolkmer-Ribeiro

Tectonics of the Baikal Rift Deduced from Volcanism and Sedimentation: A Review Oriented to the Baikal and Hovsgol Lake Systems

Determination of elemental composition of Lake Baikal sponges by wavelength dispersive X‐ray fluorescence spectrometry

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