понедельник, 3 декабря 2012 г.

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.


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.

Inhibition of mussel suspension feeding by surfactants of three classes. Marine mussels Mytilus, Atlantic Ocean; ecotoxicology of cationic, anionic, and non-ionogenic detergents

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.

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.

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

Innovative theory of ecological mechanisms of self-purification of water in freshwater and marine ecosystems.

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

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

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.

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

1 комментарий:

  1. outstanding, top article on ecology: Inhibitory analysis of top-down control: new keys to studying eutrophication, algal blooms, and water self-purification. Hydrobiologia. 2002. vol. 469, pages 117-129.