On studying the hazards of pollution of the biosphere: Effects of sodium dodecylsulfate (SDS) on planktonic filter-feeders.(Article)
DOI 10.1134/S0012496609020136.
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FULL TEXT: http://www.researchgate.net/publication/259579940_Paper_published_On_studying ;
ABSTRACT:
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.
** IN SHORT: 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.
**
The conclusions of this article were confirmed in other publications of this author.
Many other relevant, related publications - references, links, comments - see here:
article: Biological filters are an important part of the biosphere // Science in Russia. 2009. No. 2, p. 30-36.
** IN SHORT: 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.
**
The conclusions of this article were confirmed in other publications of this author.
Many other relevant, related publications - references, links, comments - see here:
article: Biological filters are an important part of the biosphere // Science in Russia. 2009. No. 2, p. 30-36.
Original Russian Text © I.M. Vorozhun, S.A. Ostroumov, 2009, published in Doklady Akademii Nauk, 2009, Vol. 425, No. 2, pp. 271–272.
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About this Article
Title
On studying the hazards of pollution of the biosphere: Effects of sodium dodecylsulfate (SDS) on planktonic filter-feeders
Journal
DOI
10.1134/S0012496609020136
Print ISSN
0012-4966
Online ISSN
1608-3105
Publisher
SP MAIK Nauka/Interperiodica