Home » » Scopus. Environmental sci. Part 2. Hazards, pollution, sodium dodecylsulfate, planktonic, filter-feeders, surfactant, water, water quality, self-purification, aquatic ecosystems, marine, mussels, clearance rates.

Scopus. Environmental sci. Part 2. Hazards, pollution, sodium dodecylsulfate, planktonic, filter-feeders, surfactant, water, water quality, self-purification, aquatic ecosystems, marine, mussels, clearance rates.

Scopus. Environmental sci. Part 2.
Publications, selected.

Hazards, pollution, sodium dodecylsulfate, planktonic,  filter-feeders, surfactant, water,  water quality, self-purification, aquatic ecosystems, marine, mussels, clearance rates.

http://5bio5.blogspot.com/2014/03/scopus-environmental-sci-part-2-hazards.html

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Part 1 of this list of references see:
 http://5bio5.blogspot.com/2014/03/scopus-environmental-sci-part-1.html
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    abstract: ABSTRACT. Vorozhun I. M., S. A. Ostroumov. On studying the hazards of pollution of the biosphere: effects of sodium dodecylsulfate (SDS) on planktonic filter-feeders. - Doklady Biological Sciences, 2009, Vol. 425, pp. 133–134. Tables. Bibliogr. 15 refs. ISSN 0012-4966. DOI: 10.1134/S0012496609020136; http://www.springerlink.com/content/p7754h672w814m30/;
    ** Full text online free: http://www.scribd.com/doc/45914806;
    ** http://www.citeulike.org/user/ATP/article/6113581;
    [the original Russian text: I.M. Vorozhun, S.A. Ostroumov, 2009, published in Doklady Akademii Nauk, 2009, Vol. 425, No. 2, pp. 271–272].
    ** The goal of this study was to test whether the surfactant SDS has an inhibitory effect on the ability of the planktonic filter-feeder Daphnia magna to remove phytoplankton from water during their filtration activity. Daphnia were kept under laboratory conditions in vessels and fed with phytoplankton: the green algae Scenedesmus quadricauda (Turp.) Breb. After filtration for 6–24 h in the presence of SDS at concentrations 5 and 10 mg/l, the abundance of S. quadricauda cells in water was higher than in the control. At the lower SDS concentrations (0.1, 0.5, and 1 mg/l), differences in the abundance of algal cells relative to the control were observed after 3 h of incubation and disappeared after 6–24 h of incubation. The calculation of the mean rate of algae removal by daphnia showed that this parameter decreased within the first 3 h after the beginning of incubation in the presence of SDS. ** CONCLUSION. It is the first time that it was demonstrated that the synthetic surfactant SDS decreased the rate of water filtration by the planktonic crustaceans D. magna.
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    abstract. ABSTRACT. Lazareva E. V., Ostroumov S. A. Accelerated decrease in surfactant concentration in the water of a microcosm in the presence of plants: innovations for phytotechnology. - Doklady Biological Sciences, 2009, Vol. 425, pp. 180–182.
    ** http://www.scribd.com/doc/60795487; in Rus.: http://www.scribd.com/doc/61655262/;
    ** Tables. Bibliogr. 15 refs. [Pleiades Publishing, Ltd.; ISSN 0012-4966; Presented by Academician G.V. Dobrovol’sky September 26, 2008; DOI: 10.1134/S0012496609020276; original Russian text: E.V. Lazareva, S.A. Ostroumov, 2009, published in Doklady Akademii Nauk, 2009, Vol. 425, No. 6, pp. 843–845].
    ** It was discovered that plant biomass help towards restoration the water quality in the system which was polluted with a synthetic surfactant. Addition of sodium dodecylsulphate (SDS) to water rapidly changed the surface tension of water in the microcosm. The measurements demonstrated that the surface tension of water in the microcosm with the macrophyte OST1 restored to the level which was close to that of pure water within less than three days. As soon as after 46-h incubation of the system containing the plant phytomass, the surface tension increased significantly and reached that of distilled water. In the variants with water without plant phytomass, restoration of the normal surface tension was much longer (about 17 days). The results demonstrated an accelerated restoration of the normal surface tension which was typical of pure water in those systems that contained SDS in the presence of the phytomass of the macrophyte OST1. This is consistent with the conclusion that the macrophyte accelerates the disappearance of the surfactant from water.
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  • Basics of the molecular-ecological mechanism of water quality formation and water self-purification
    Ostroumov, S.A.
    2008;
    Contemporary Problems of Ecology
    The article was bookmarked by Internet users at ResearchGate.

    Full text free:
    https://www.researchgate.net/publication/200583098_Basics_of_the_molecular-ecological_mechanism_of_water_quality_formation_and_water_self-purification

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    The paper formulates some basics of the modern ecological theory of the polyfunctional role of biota in the molecular-ecological mechanism of water quality formation and self-purification of aquatic ecosystems. The theory covers the following items: (1) sources of energy for self-purification mechanisms, (2) the main structural and functional units of the self-purification system, (3) the main processes involved in the system, (4) contributions of major taxa to self-purification, (5) system reliability and supporting mechanisms, (6) the response of the system as a whole to external factors, (7) particulars of the operation of water purification mechanisms, and (8) conclusions and recommendations for biodiversity preservation practice. © 2008 Pleiades Publishing, Inc.

  • Inhibition of mussel suspension feeding by surfactants of three classes
    Ostroumov, S.A., Widdows, J.
    2006
    Hydrobiologia
      

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    Effects of three surfactants on the filtration rates by marine mussels were studied. The xenobiotics tested represented anionic, cationic and non-ionic surfactants (tetradecyltrimethylammonium bromide, a representative of a class of cationic surfactants; sodium dodecyl sulphate, a representative of anionic alkyl sulfates; and Triton X-100, a representative of non-ionic hydroxyethylated alkyl phenols). All three surfactants inhibited the clearance rates. The significance of the results for the ecology of marine ecosystems is discussed. © Springer 2006.

  • On the multifunctional role of the biota in the self-purification of aquatic ecosystems
    Ostroumov, S.A.
    2005
    Russian Journal of Ecology
      

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    Principles of the theory of the ecological mechanism of water self-purification based on multiple functions of the biota in freshwater and marine ecosystems are formulated. In developing this theory, the results of the author's experiments with filtering hydrobionts have been used. These results indicate that the water self-purification mechanism is vulnerable to the impact of some pollutants and, in particular, surfactants. Conclusions drawn on the basis of the theory have practical significance for biodiversity conservation and for the sustainable use of the biological resources of aquatic ecosystems. © 2005 Pleiades Publishing, Inc.

  • Some aspects of water filtering activity of filter-feeders
    Ostroumov, S.A.
    2005
    Hydrobiologia


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    On the basis of the previous publications, our new data and the existing scientific literature, we have formulated some fundamental principles that characterize the pivotal roles of the biodiversity of filter-feeders in ecosystems. Among those roles are: (1) the role of ecological repair of water quality, (2) the role of contributing to reliability and stability of the functioning of the ecosystem, (3) the role of contributing to creation of habitat heterogeneity, (4) the role of contributing to acceleration of migration of chemical elements. It is an important feature of the biomachinery of filter-feeders that it removes from water various particles of a very broad range of sizes. Another important principle is that the amount of the organic matter filtered out of water is larger than the amount assimilated so that a significant part of the removed material serves no useful function to the organism of the filter-feeder, but serves a beneficial function to some other species and to the ecosystem as a whole. The new experiments by the author additionally demonstrated a vulnerability of the filtration activity of filter feeders (e.g., bivalves and rotifers) to some xenobiotics (tetradecyltrymethylammonium bromide, heavy metals and some others). The inhibition of the filtration activity of filter-feeders may lead to the situation previously described as that of an ecological bomb of the second type. © Springer 2005.

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