Some aspects of water filtering activity of filter-feeders http://5bio5.blogspot.com/2012/11/some-aspects-of-water-filtering.html
Key words: filter-feeders, water self-purification, bivalves, pollution, filtering activity, Environmental Hazards, Habitat Heterogeneity, surfactant,Heavy Metal, Organic Matter, Water Quality, Ash Free Dry Weight, Sodium Dodecyl Sulphate, detergents,
Abbreviations: AFDW - ash-free dry weight; LD - liquid detergent; SD - synthetic detergent (laundry detergent in the form of powder); SDS - sodium dodecyl sulphate; TDTMA-tetradecyltrimethylammonium bromide
S. A. Ostroumov, Moscow State University, Moscow
ABSTRACT: 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 environmental hazard of the second type.
ABSTRACT: 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 environmental hazard of the second type.
S.A.Ostroumov: Laboratory of Physico-Chemistry of Biomembranes, Faculty of Biology, Moscow State University,Moscow 119991, Russia; ar55[at]yandex.ru;
Key words: filter-feeders, water self-purification, bivalves, pollution, filtering activity, Environmental Hazards, Habitat Heterogeneity, surfactant,Heavy Metal, Organic Matter, Water Quality, Ash Free Dry Weight, Sodium Dodecyl Sulphate, detergents,
Abbreviations: AFDW - ash-free dry weight; LD - liquid detergent; SD - synthetic detergent (laundry detergent in the form of powder); SDS - sodium dodecyl sulphate; TDTMA-tetradecyltrimethylammonium bromide
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http://libra.msra.cn/Publication/39881797/some-aspects-of-water-filtering-activity-of-filter-feeders
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Links between estuarine condition and spatial distributions of marine invaders
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Citation Context (3)
...A major factor affecting detritus formation by filter-feeders is the rate of filtration determined by the presence and concentration of surfactants, detergents, and other chemicals [20, 21]...
S. A. Ostroumov, et al. The role of biodetritus in accumulation of elements in aquatic ecosyst...
- ...Recognition of the importance of these ecosystem services might aid in the conservation of these communities [28]...
Scott Gifford, et al. Aquatic zooremediation: deploying animals to remediate contaminated aq...
- ...Such coupling between pelagic and benthic ecosystems increases with bivalves that have high clearance rates and that eject a large number of particles (Newell 2004; Ostroumov 2005)...
