New facts on how detergents slow down the filtration of water by aquatic organisms (bivalve mussels, oysters and others). New inhibitory effects of surfactants TDTMA and SDS on water filtering activity of the marine mollusks oysters Crassostrea gigas.
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S.A. Ostroumov. Studying effects of some surfactants and detergents on filter-feeding bivalves. - Hydrobiologia, 500:341–344, 2003.
http://www.scribd.com/doc/63898669
http://www.springerlink.com/content/k05884h730t228w4/
S.A. Ostroumov. Studying effects of some surfactants and detergents on filter-feeding bivalves. - Hydrobiologia, 500:341–344, 2003.
http://www.scribd.com/doc/63898669
http://www.springerlink.com/content/k05884h730t228w4/
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Abstract. Effects of several chemicals, synthetic surfactants and chemical mixtures, on marine bivalves were studied. An anionic surfactant, sodium dodecylsulphate (SDS), and a cationic surfactant, tetradecyltrimethylammonium bromide (TDTMA), inhibited the filtering activity of marine bivalves, oysters (Crassostrea gigas). Similar effects were exhibited by some chemical mixtures that included surfactants. Those mixtures inhibited the filtering activity of Crassostrea gigas and marine mussels Mytilus galloprovincialis. The new results are in agreement with the author's previous experiments, where a number of xenobiotics and/or pollutants inhibited the filtering activity of several species of marine and freshwater bivalves, e.g., it had been shown that SDS inhibited filtering activity of marine mussels Mytilus edulis (e.g., Ostroumov, 2000c, 2001a). This experimental approach is helpful in assessment of environmental hazards from man-made chemicals that can contaminate marine systems. The importance of the findings:
Abstract. Effects of several chemicals, synthetic surfactants and chemical mixtures, on marine bivalves were studied. An anionic surfactant, sodium dodecylsulphate (SDS), and a cationic surfactant, tetradecyltrimethylammonium bromide (TDTMA), inhibited the filtering activity of marine bivalves, oysters (Crassostrea gigas). Similar effects were exhibited by some chemical mixtures that included surfactants. Those mixtures inhibited the filtering activity of Crassostrea gigas and marine mussels Mytilus galloprovincialis. The new results are in agreement with the author's previous experiments, where a number of xenobiotics and/or pollutants inhibited the filtering activity of several species of marine and freshwater bivalves, e.g., it had been shown that SDS inhibited filtering activity of marine mussels Mytilus edulis (e.g., Ostroumov, 2000c, 2001a). This experimental approach is helpful in assessment of environmental hazards from man-made chemicals that can contaminate marine systems. The importance of the findings:
1) It is the first discovery of serious environmental hazards from synthetic surfactants and chemical mixtures that contain surfactants, especially in view of the fact that filtering activity of bivalves is an important part of water self-purification and the natural mechanism for maintaining water quality;
2) It is a new evidence of serious environmental hazards from relatively mild, sublethal effects of chemical pollutants;
3) It is relevant to aquaculture and mariculture. The new data discovered a new man-made impact on aquatic systems that poses a threat to aquaculture.
2) It is a new evidence of serious environmental hazards from relatively mild, sublethal effects of chemical pollutants;
3) It is relevant to aquaculture and mariculture. The new data discovered a new man-made impact on aquatic systems that poses a threat to aquaculture.
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Reference:
S.A. Ostroumov. Studying effects of some surfactants and detergents on filter-feeding bivalves. - Hydrobiologia, 500:341–344, 2003.
S.A. Ostroumov. Studying effects of some surfactants and detergents on filter-feeding bivalves. - Hydrobiologia, 500:341–344, 2003.
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Keywords: chemical, pollution, water, quality, aquatic, ecosystem, marine, self-purification, environmental, hazards, assessment, surfactants, detergents, oysters, mussels, filter-feeders, suspension feeders, Crassostrea gigas, Mytilus galloprovincialis, Mytilus edulis
Ключевые слова: химический, загрязнение, вода, качество, водный, экосистема, морской, самоочищение, науки об окружающей среде, опасности, оценка, поверхностно-активные вещества, детергенты, устрицы, мидии, фильтраторы, Crassostrea gigas, Mytilus galloprovincialis, Mytilus edulis
Ключевые слова: химический, загрязнение, вода, качество, водный, экосистема, морской, самоочищение, науки об окружающей среде, опасности, оценка, поверхностно-активные вещества, детергенты, устрицы, мидии, фильтраторы, Crassostrea gigas, Mytilus galloprovincialis, Mytilus edulis
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Studying effects of some surfactants and detergents on filter-feeding bivalves. - excellent publication, top paper
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