New facts on a chemical of an important class of substances as aquatic pollutant.

It is the first paper in which it was clearly proved that the synthetic chemical (exemplified by the surfactant sodium dodecylsulfate, SDS), when it pollutes water, produces dangerous effects on both marine mussels (Mytilus edulis) and phytoplankton.

Abstract

The effect of synthetic anionic surface active substance (SAS) sodium dodecylsulfate (SDS, 4 mg/l) on the kinetics of water filtration by mussel Mytilus edulis was studied. A suspension of algae Isochrysis galbana was added to the vessel with the mussels, and their filtration activity was measured by counting the concentration of the algae cells in the experimental vessels. Algae concentration was measured every 30 min for an hour and a half. The inhibiting effect on the mollusk filtration rate (FR) was qualitatively described. After the first 30 min filtration at 4 mg/l initial SDS concentration, the cell density was 322% of the control. The inhibiting effect was observed later as well. Due to FR inhibition in the vessels with the above specified initial SDS concentration, the algae cell density was 6.4 and 14.7 times that of the control after 1 and 1.5 h, respectively. Thus, SAS SDS can decrease the natural capacity of aquatic ecosystems for self-purification and disturb other aspects of ecosystem functioning through inhibiting the filtration activity of mussels. The obtained data are discussed in the context of environment and hydrosphere protection from pollution.  

 

Reference

Ostroumov S. A. An Amphiphilic Substance Inhibits the Mollusk Capacity to Filter out Phytoplankton Cells from Water. - Biology Bulletin, v.28, No.1; pp.95-102.

http://www.scribd.com/doc/63444377/

http://b23.ru/nbkq

www.springerlink.com/index/l665628020163255.pdf

 

Key words: environment, water, SDS, ecosystem, ecology, marine, inhibition, surfacant, filtration, water quality, mussels, bivalve, self-purification, Mytilus edulis, sodium dodecylsulfate, aquatic, hydrosphere

 

Ключевые слова: окружающая среда, вода, SDS, экосистема, экология, морской, ингибирование, поверхностно-активные вещества, фильтрация, качество воды, мидии, двустворчатые моллюски, самоочищение, Mytilus edulis, додецилсульфат натрия, водный, гидросфера

 

See also:

A short list of the most important physical, chemical, and biological processes of water self-purification.
http://alsuyus.blogspot.com/2012/12/polyfunctional-role-of-biodiversity-in.html

New fresh insight into ecological mechanisms of eutrophication and abnormal increase in phytoplankton and how ecosystem runs water self-purification.

http://alsuyus.blogspot.ru/2012/12/ecological-mechanisms-of-eutrophication.html

New concepts and terminology in ecology, and science of limnology and biological oceanography: ecological tax; ecological repair of water quality. Some aspects of water filtering activity of filter-feeders.
http://alsuyus.blogspot.com/2012/10/new-concepts-and-terminology-in-ecology.html

Inhibition of mussel suspension feeding by surfactants of three classes. Marine mussels Mytilus, Atlantic Ocean; ecotoxicology of cationic, anionic, and non-ionogenic detergents
http://alsuyus.blogspot.com/2012/10/inhibition-of-mussel-suspension-feeding.html

New aspects of water quality formation and water quality control in natural freshwater and marine ecosystems; new facts on negative effects of chemical pollutants (e.g., synthetic surfactants and detergents) on aquatic organisms, especially filter-feeders.
http://alsuyus.blogspot.com/2012/10/basics-of-molecular-ecological.html

First paper to report concentrations of a number of rare earth elements (Ce, Nd, U, Hf, Cs, Au) in biological detritus in an aquatic system.
http://alsuyus.blogspot.com/2012/09/the-role-of-biodetritus-in-accumulation.html

Modern comments on innovative scientific terms (ecological chemomediators, ecological chemoregulators).

http://alsuyus.blogspot.com/2012/09/modern-comments-on-innovative.html

Innovative theory of ecological mechanisms of self-purification of water in freshwater and marine ecosystems.
http://alsuyus.blogspot.com/2012/09/biocontrol-of-water-quality.html

Innovative and multifaceted conceptualization of how almost all aquatic organisms function together toward making water clear and clean.

http://alsuyus.blogspot.com/2012/09/on-multifunctional-role-of-biota-in.html

Detailed analysis of the discovery and innovation: a new aspect of the functioning of ecosystem.

http://alsuyus.blogspot.ru/2012/10/aquatic-ecosystem-as-bioreactor-water.html

New facts on how detergents slow down the filtration of water by aquatic organisms; new inhibitory effects of surfactants TDTMA and SDS on water filtering activity of the marine mollusks oysters Crassostrea gigas.

http://alsuyus.blogspot.ru/2012/11/new-facts-on-hazards-of-synthetic.html

First and unique paper in which an international team of experts, scientists of 3 countries formulated a short list of research priorities in ecology and environmental sciences.
http://alsuyus.blogspot.ru/2012/11/medium-term-and-long-term-priorities-in.html

Fundamentally new solution to the problem of selecting criteria for identification and assessing environmental hazards of chemical pollutants, toxicants.

http://alsuyus.blogspot.ru/2012/11/criteria-for-identification-and.html

 

Polyfunctional role of biodiversity in processes leading to water purification: current conceptualizations and concluding remarks

A short list of the most important physical, chemical, and biological processes of water self-purification.
The first publication in which a concise outline was made of the author’s innovative theory of water self-purification. A short list of the most important physical, chemical, and biological processes of water self-purification is given.

*****
Reference:
Ostroumov S.A. Polyfunctional role of biodiversity in processes leading to water purification: current conceptualizations and concluding remarks. - Hydrobiologia, 2002, Volume: 469; Issue: 1-3; Pages: 203-204.
http://www.deepdyve.com/lp/springer-journals/polyfunctional-role-of-biodiversity-in-processes-leading-to-water-6hc0hSENAj

*****
Full text free:
http://www.scribd.com/doc/52627327
http://www.moip.msu.ru/?p=155
http://www.academia.edu/1900592/Polyfunctional_role_of_biodiversity_in_processes_leading_to_water_purification_current_conceptualizations_and_concluding_remarks

*****
Key words: water purification, self-purification, biodiversity, pollutants, improving water quality, sustainability, environment safety, marine ecosystems, freshwater ecosystems.

Ключевые слова: очищение воды, самоочищение, биоразнообразие, загрязняющие вещества, улучшение качества воды, устойчивость, охрана окружающей среды, морские экосистемы, пресноводные экосистемы.
 
******
See also:

New fresh insight into ecological mechanisms of eutrophication and abnormal increase in phytoplankton and how ecosystem runs water self-purification.

http://alsuyus.blogspot.ru/2012/12/ecological-mechanisms-of-eutrophication.html

New concepts and terminology in ecology, and science of limnology and biological oceanography: ecological tax; ecological repair of water quality. Some aspects of water filtering activity of filter-feeders.

ttp://alsuyus.blogspot.com/2012/10/new-concepts-and-terminology-in-ecology.html

Inhibition of mussel suspension feeding by surfactants of three classes. Marine mussels Mytilus, Atlantic Ocean; ecotoxicology of cationic, anionic, and non-ionogenic detergents
http://alsuyus.blogspot.com/2012/10/inhibition-of-mussel-suspension-feeding.html

New aspects of water quality formation and water quality control in natural freshwater and marine ecosystems; new facts on negative effects of chemical pollutants (e.g., synthetic surfactants and detergents) on aquatic organisms, especially filter-feeders.
http://alsuyus.blogspot.com/2012/10/basics-of-molecular-ecological.html

First paper to report concentrations of a number of rare earth elements (Ce, Nd, U, Hf, Cs, Au) in biological detritus in an aquatic system.
http://alsuyus.blogspot.com/2012/09/the-role-of-biodetritus-in-accumulation.html

Modern comments on innovative scientific terms (ecological chemomediators, ecological chemoregulators).

http://alsuyus.blogspot.com/2012/09/modern-comments-on-innovative.html

Innovative theory of ecological mechanisms of self-purification of water in freshwater and marine ecosystems.
http://alsuyus.blogspot.com/2012/09/biocontrol-of-water-quality.html

Innovative and multifaceted conceptualization of how almost all aquatic organisms function together toward making water clear and clean.

http://alsuyus.blogspot.com/2012/09/on-multifunctional-role-of-biota-in.html

Detailed analysis of the discovery and innovation: a new aspect of the functioning of ecosystem.

http://alsuyus.blogspot.ru/2012/10/aquatic-ecosystem-as-bioreactor-water.html

New facts on how detergents slow down the filtration of water by aquatic organisms; new inhibitory effects of surfactants TDTMA and SDS on water filtering activity of the marine mollusks oysters Crassostrea gigas.

http://alsuyus.blogspot.ru/2012/11/new-facts-on-hazards-of-synthetic.html

First and unique paper in which an international team of experts, scientists of 3 countries formulated a short list of research priorities in ecology and environmental sciences.
http://alsuyus.blogspot.ru/2012/11/medium-term-and-long-term-priorities-in.html

Fundamentally new solution to the problem of selecting criteria for identification and assessing environmental hazards of chemical pollutants, toxicants.

http://alsuyus.blogspot.ru/2012/11/criteria-for-identification-and.html

Ecological mechanisms of eutrophication and abnormal increase in phytoplankton

It is the first article in which the new experimental results of the author were analyzed to give a new fresh insight into ecological mechanisms of eutrophication and abnormal increase in phytoplankton. Also, a new insight into how ecosystem runs water self-purification.

***

Ostroumov S.A. Inhibitory analysis of top-down control: new keys to studying eutrophication, algal blooms, and water self-purification. Hydrobiologia. 2002. vol. 469, pages 117-129.

http://www.scribd.com/doc/52598579
http://www.deepdyve.com/lp/springer-journals/inhibitory-analysis-of-top-down-control-new-keys-to-studying-cDrLImLx31
http://www.scribd.com/doc/50363310
www.moip.msu.ru/?p=154

***

Abstract
Top-down control is an important type of interspecies interactions in food webs. It is especially important for aquatic ecosystems. Phytoplankton grazers contribute to the top-down control of phytoplankton populations. The paper is focused on the role of benthic filter feeders in the control of plankton populations as a result of water filtering and the removal of cells of plankton from the water column. New data on the inhibitory effects of surfactants and detergents on benthic filter-feeders (Unio tumidus, U. pictorum, Mytilus galloprovincialis, M. edulis and Crassostrea gigas) are presented and discussed. Importance and efficiency of that approach to the problems of eutrophication and water self-purification is pointed out. Chemical pollution may pose a threat to the natural top-down control of phytoplankton and water self-purification process. The latter is considered an important prerequisite for sustainable use of aquatic resources.

***

Keywords: self-purification, filter-feeders, surfactants, detergents, benthic bivalves, aquatic ecosystems, eutrophication, algal blooms, hazards, chemical pollution, water quality, phytoplankton, marine, freshwater invertebrates, clearance rate, biological effects of xenobiotics, pollutants, inhibitory effects, Unio tumidus, U. pictorum, Mytilus galloprovincialis, M. edulis, Crassostrea gigas, mussels, oysters

  

Ключевые слова: самоочищение, фильтраторы, поверхностно-активные вещества, детергенты, бентосные моллюски, водные экосистемы, эвтрофирование, эвтрофикация, цветение водорослей, экологическая опасность, химическое загрязнение, качество воды, фитопланктон, морские, пресноводные, беспозвоночные, самоочищение, биологические эффекты, ксенобиотики, загрязнители, ингибирование, фильтрация воды, биофильтраторы, перловицы, Unio tumidus, U. pictorum, Mytilus galloprovincialis, M. edulis, Crassostrea gigas, мидии, устрицы


***

See also:

New concepts and terminology in ecology, and science of limnology and biological oceanography: ecological tax; ecological repair of water quality. Some aspects of water filtering activity of filter-feeders.

ttp://alsuyus.blogspot.com/2012/10/new-concepts-and-terminology-in-ecology.html

Inhibition of mussel suspension feeding by surfactants of three classes. Marine mussels Mytilus, Atlantic Ocean; ecotoxicology of cationic, anionic, and non-ionogenic detergents
http://alsuyus.blogspot.com/2012/10/inhibition-of-mussel-suspension-feeding.html

New aspects of water quality formation and water quality control in natural freshwater and marine ecosystems; new facts on negative effects of chemical pollutants (e.g., synthetic surfactants and detergents) on aquatic organisms, especially filter-feeders.
http://alsuyus.blogspot.com/2012/10/basics-of-molecular-ecological.html

First paper to report concentrations of a number of rare earth elements (Ce, Nd, U, Hf, Cs, Au) in biological detritus in an aquatic system.
http://alsuyus.blogspot.com/2012/09/the-role-of-biodetritus-in-accumulation.html

Modern comments on innovative scientific terms (ecological chemomediators, ecological chemoregulators).

http://alsuyus.blogspot.com/2012/09/modern-comments-on-innovative.html

Innovative theory of ecological mechanisms of self-purification of water in freshwater and marine ecosystems.
http://alsuyus.blogspot.com/2012/09/biocontrol-of-water-quality.html

Innovative and multifaceted conceptualization of how almost all aquatic organisms function together toward making water clear and clean.

http://alsuyus.blogspot.com/2012/09/on-multifunctional-role-of-biota-in.html

Detailed analysis of the discovery and innovation: a new aspect of the functioning of ecosystem.

http://alsuyus.blogspot.ru/2012/10/aquatic-ecosystem-as-bioreactor-water.html

New facts on how detergents slow down the filtration of water by aquatic organisms; new inhibitory effects of surfactants TDTMA and SDS on water filtering activity of the marine mollusks oysters Crassostrea gigas.

http://alsuyus.blogspot.ru/2012/11/new-facts-on-hazards-of-synthetic.html

First and unique paper in which an international team of experts, scientists of 3 countries formulated a short list of research priorities in ecology and environmental sciences.
http://alsuyus.blogspot.ru/2012/11/medium-term-and-long-term-priorities-in.html

 

 Fundamentally new solution to the problem of selecting criteria for identification and assessing environmental hazards of chemical pollutants, toxicants.

http://alsuyus.blogspot.ru/2012/11/criteria-for-identification-and.html

Criteria for identification and assessing environmental hazards of chemical pollutants

New criteria in order to answer the question were formulated in this paper: is a given chemical substance hazardous to the environment or not? This paper formulated a fundamentally new solution to the problem of selecting criteria for identification and assessing environmental hazards of chemical pollutants, toxicants.

***

Reference:
Ostroumov S.A. Anthropogenic effects on the biota: Towards a new system of principles and criteria for analysis of ecological hazards.- Rivista Di Biologia-Biology Forum, 2003, Volume: 96, Issue: 1, Pages: 159-169. 

http://5bio5.blogspot.com/2012/09/ostroumov-sa-anthropogenic-effects-on.html

***

Abstract

The currently accepted system of criteria for evaluating environmental and ecological hazards of man-made chemicals (pollutants) is vulnerable to criticism. In this paper, a new concept of the system of approaches towards criteria for evaluating the ecological hazard from man-made impact is proposed. It is suggested to assess the man-made impacts (including effects of pollutants and xenobiotics) on the biota according to the following four levels of disturbance in biological and ecological systems: (1) the level of individual responses; (2) the level of aggregated responses of groups of organisms; (3) the level of stability and integrity of the ecosystem; (4) the level of contributions of the ecosystem to biospheric processes. On the basis of the author's experimental studies, an example is given of how to apply the proposed approach and the system of criteria to the analysis of concrete experimental data. To exemplify the efficiency of the proposed approach, it is shown how to use it to analyze new data on effects of a synthetic surfactant on water filtering by bivalves. It is concluded that the proposed approach will be helpful in better assessing environmental and ecological hazards from anthropogenic effects on biota, including effects of man-made chemicals polluting ecosystems.

***

Key words: ecology, bioassay, environmental, hazards, man-made, impacts, anthropogenic, effects, pollutants, xenobiotics, biofiltering, water self-purification, aquatic ecosystems, criteria, system, level, block, approach, analysis, ecological, biota, TX100, Mytilus edulis, mussels, filtration, non-ionic, surfactant, bivalves

 

Ключевые слова: экология, биотестирование, науки об окружающей среде, опасности, связанные с деятельностью человека, последствия, антропогенные,  воздействия, загрязняющие вещества, ксенобиотики, биофильтрация, самоочищение воды, водные экосистемы, критерии, система, уровень, блок, подход, анализ, экологический, биота, TX100, Mytilus edulis, мидии, фильтрация, неионогенные, поверхностно-активное вещество, двустворчатые моллюски

 

 

See also:

New concepts and terminology in ecology, and science of limnology and biological oceanography: ecological tax; ecological repair of water quality. Some aspects of water filtering activity of filter-feeders.

ttp://alsuyus.blogspot.com/2012/10/new-concepts-and-terminology-in-ecology.html

Inhibition of mussel suspension feeding by surfactants of three classes. Marine mussels Mytilus, Atlantic Ocean; ecotoxicology of cationic, anionic, and non-ionogenic detergents
http://alsuyus.blogspot.com/2012/10/inhibition-of-mussel-suspension-feeding.html

New aspects of water quality formation and water quality control in natural freshwater and marine ecosystems; new facts on negative effects of chemical pollutants (e.g., synthetic surfactants and detergents) on aquatic organisms, especially filter-feeders.
http://alsuyus.blogspot.com/2012/10/basics-of-molecular-ecological.html

First paper to report concentrations of a number of rare earth elements (Ce, Nd, U, Hf, Cs, Au) in biological detritus in an aquatic system.
http://alsuyus.blogspot.com/2012/09/the-role-of-biodetritus-in-accumulation.html

Modern comments on innovative scientific terms (ecological chemomediators, ecological chemoregulators).

http://alsuyus.blogspot.com/2012/09/modern-comments-on-innovative.html

Innovative theory of ecological mechanisms of self-purification of water in freshwater and marine ecosystems.
http://alsuyus.blogspot.com/2012/09/biocontrol-of-water-quality.html

Innovative and multifaceted conceptualization of how almost all aquatic organisms function together toward making water clear and clean.

http://alsuyus.blogspot.com/2012/09/on-multifunctional-role-of-biota-in.html

Detailed analysis of the discovery and innovation: a new aspect of the functioning of ecosystem.

http://alsuyus.blogspot.ru/2012/10/aquatic-ecosystem-as-bioreactor-water.html

New facts on how detergents slow down the filtration of water by aquatic organisms; new inhibitory effects of surfactants TDTMA and SDS on water filtering activity of the marine mollusks oysters Crassostrea gigas.

http://alsuyus.blogspot.ru/2012/11/new-facts-on-hazards-of-synthetic.html

First and unique paper in which an international team of experts, scientists of 3 countries formulated a short list of research priorities in ecology and environmental sciences.
http://alsuyus.blogspot.ru/2012/11/medium-term-and-long-term-priorities-in.html

Modernized definition of the term "pheromones", comments on some new concepts.
http://alsuyus.blogspot.ru/2012/11/the-functions-of-living-substances-in.html

The Functions of Living Substances in the Biosphere

Modernized definition of the term "pheromones", comments on some new concepts.

 

A new modernized definition of the term "pheromones"; comments on the new concepts that were proposed by the author, namely ecological chemomediators, ecological chemoregulators, ecological chemoeffectors.

***

Ostroumov S.A. The Functions of Living Substances in the Biosphere. - HERALD OF THE RUSSIAN ACADEMY OF SCIENCES, 2003, 73 (2): 164-169
http://5bio5.blogspot.com/2012/09/the-functions-of-living-substances-in.html

***

Key words:
biosphere, new concepts, ecology, biology, V.I.Vernadsky, living matter, biogeochemistry, new modernized definition, terminology, pheromones, ecological chemomediators, ecological chemoregulators, ecological chemoeffectors

Ключевые слова:

биосфера, новые концепции, экология, биология, В.И. Вернадский, живое вещество, биогеохимия, новые модернизированные определения, терминология, феромоны, экологические хемомедиаторы, экологические хеморегуляторы, экологические хемоэффекторы

***
See also:

New concepts and terminology in ecology, and science of limnology and biological oceanography: ecological tax; ecological repair of water quality. Some aspects of water filtering activity of filter-feeders.

ttp://alsuyus.blogspot.com/2012/10/new-concepts-and-terminology-in-ecology.html

Inhibition of mussel suspension feeding by surfactants of three classes. Marine mussels Mytilus, Atlantic Ocean; ecotoxicology of cationic, anionic, and non-ionogenic detergents
http://alsuyus.blogspot.com/2012/10/inhibition-of-mussel-suspension-feeding.html

New aspects of water quality formation and water quality control in natural freshwater and marine ecosystems; new facts on negative effects of chemical pollutants (e.g., synthetic surfactants and detergents) on aquatic organisms, especially filter-feeders.
http://alsuyus.blogspot.com/2012/10/basics-of-molecular-ecological.html

First paper to report concentrations of a number of rare earth elements (Ce, Nd, U, Hf, Cs, Au) in biological detritus in an aquatic system.
http://alsuyus.blogspot.com/2012/09/the-role-of-biodetritus-in-accumulation.html

Modern comments on innovative scientific terms (ecological chemomediators, ecological chemoregulators).

http://alsuyus.blogspot.com/2012/09/modern-comments-on-innovative.html

Innovative theory of ecological mechanisms of self-purification of water in freshwater and marine ecosystems.
http://alsuyus.blogspot.com/2012/09/biocontrol-of-water-quality.html

Innovative and multifaceted conceptualization of how almost all aquatic organisms function together toward making water clear and clean.

http://alsuyus.blogspot.com/2012/09/on-multifunctional-role-of-biota-in.html

Detailed analysis of the discovery and innovation: a new aspect of the functioning of ecosystem.

http://alsuyus.blogspot.ru/2012/10/aquatic-ecosystem-as-bioreactor-water.html

New facts on how detergents slow down the filtration of water by aquatic organisms; new inhibitory effects of surfactants TDTMA and SDS on water filtering activity of the marine mollusks oysters Crassostrea gigas.

http://alsuyus.blogspot.ru/2012/11/new-facts-on-hazards-of-synthetic.html

First and unique paper in which an international team of experts, scientists of 3 countries formulated a short list of research priorities in ecology and environmental sciences.
http://alsuyus.blogspot.ru/2012/11/medium-term-and-long-term-priorities-in.html

Medium-term and long-term priorities in ecological studies

A short list of research priorities in ecology and environmental sciences for future.
A first and unique paper in which an international team of experts, scientists of three countries formulated a short list of research priorities in ecology and environmental sciences for the current century.

***
S.A. Ostroumov, S.I. Dodson, D. Hamilton, S.A. Peterson, and R.G. Wetzel. Medium-term and long-term priorities in ecological studies. - Rivista di Biologia, 96(2):327–332, 2003.
http://www.scribd.com/doc/48100827
http://5bio5.blogspot.com/2012/08/medium-term-and-long-term-priorities-in.html

***
Abstract
Research priorities in ecology and environmental sciences for the future are formulated. The priorities for both fundamental and applied ecology are proposed. The list of priorities includes about 50 items. The priorities are relevant to terrestrial, aquatic, and general ecology. The list of priorities is helpful when grant proposals are being prepared, evaluated, and selected for funding.

 

***

Reference:

S.A. Ostroumov, S.I. Dodson, D. Hamilton, S.A. Peterson, and R.G. Wetzel. Medium-term and long-term priorities in ecological studies. - Rivista di Biologia, 96(2):327–332, 2003.

 

***

Keywords: ecology, environmental sciences, priorities, fundamental problems, topics for grants, scientific policy

 

Ключевые слова: экология, науки об окружающей среде, приоритеты, фундаментальные проблемы, темы для грантов, научная политика

 

***

http://alsuyus.blogspot.com/2012/10/new-concepts-and-terminology-in-ecology.html
http://alsuyus.blogspot.com/2012/10/inhibition-of-mussel-suspension-feeding.html
http://alsuyus.blogspot.com/2012/10/basics-of-molecular-ecological.html
http://alsuyus.blogspot.com/2012/09/the-role-of-biodetritus-in-accumulation.html
http://alsuyus.blogspot.com/2012/09/modern-comments-on-innovative.html
http://alsuyus.blogspot.com/2012/09/biocontrol-of-water-quality.html
http://alsuyus.blogspot.com/2012/09/on-multifunctional-role-of-biota-in.html
http://alsuyus.blogspot.ru/2012/10/aquatic-ecosystem-as-bioreactor-water.html
http://alsuyus.blogspot.ru/2012/11/new-facts-on-hazards-of-synthetic.html

New facts on hazards of synthetic detergents as environmental pollutants

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.   

 

***
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/

***
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.

 

***

Reference:
S.A. Ostroumov. Studying effects of some surfactants and detergents on filter-feeding bivalves. - Hydrobiologia, 500:341–344, 2003.

***

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

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