Bacteriobenthos of the Upper Volga Reservoirs as a Characteristic of Their Environmental State

Dzyuban, A. N.

doi:10.1023/b:ware.0000007595.46670.2d

Cited by 7 publications

(5 citation statements)

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“…Considering that all climatic characteristics and flow variation are the same for all study sites, the differences detected depend on the combination of multiple factors, some of natural origin and some anthropogenic. The dynamics of microbial metabolic groups at RS agree with numerous studies which indicate that part of the degradation is carried out quickly in the water by aerobic microorganisms and the other in soil and sediment with a predominance of anaerobic bacteria (Wetzel 2001;Dzyuban 2003;Dzyuban 2005;Amalfitano et al 2008). The ammonifiers were the most abundant group, probably due to the high physiologic variability of these microorganisms and that ammonifying activity has few limitations and only depends on the availability of N organic compounds (Paul 2007).…”

Section: Discussionsupporting

confidence: 75%

“…We consider that key actions for restoration programs are the following: (a) the elimination of impervious surface and forestation of stream banks to favor the positive vegetation effects on water decontamination (Huang et al 2009;Oehler et al 2009); (b) the building of artificial wetlands to improve the uptake and retention of xenobiotics and the volatilization of nutrients (Hunter et al 2009), particularly upstream sites where the characteristics of water self-depuration are very reduced; and (c) the removing of sediments and re-meandering the river course where sewage sediments present great accumulation (Dzyuban 2003). We hope that these findings may be applicable to many other polluted rivers with similar geomorphologic and hydrological characteristics.…”

Section: Discussionmentioning

confidence: 99%

“…(Artigas et al 2009;Carey and Migliaccio 2009;Kang and Lin 2009). Both natural and anthropic factors modify different aspects of lotic systems including nutrients, organic C, and dissolved O 2 contents (Carey and Migliaccio 2009), which affect microbial abundance and activity, altering natural depuration rate in time and distance (Dzyuban 2003;Kosolapov et al 2003;Carey and Migliaccio 2009;Perryman et al 2011).…”

Section: Introductionmentioning

confidence: 99%

“…The key aspect of the river dynamics regarding the success of restoration programs is the degree of water selfdepuration, which allows the establishment of the magnitude of treatment effects in time and distance (Dzyuban 2003;Parkyn et al 2003). Water self-depuration capacity in aquatic systems is based on the following characteristics: (a) the degradation of organic compounds by microbial activity (Nishihama et al 2008), (b) the adsorption of xenobiotics and heavy metals in riparian soils and sediments (Hunter et al 2009), and (c) the nutrients uptake by riparian vegetation (McIntyre et al 2009).…”

Section: Introductionmentioning

confidence: 99%

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Multidisciplinary approach to assess the water self-depuration characteristics of Suquía River (Córdoba, Argentina)

Merlo

Abril

2014

Rev. Chil. de Hist. Nat.

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Background: We analyzed the following characteristics of water self-depuration capacity along a polluted river (Suquía River) in Argentina: (a) abundance of microbial metabolic groups, (b) cover and type of vegetation, and (c) type and concentration of soil and sediment humic substances. The objective was to establish the modifications of water self-depuration characteristics of the polluted sites in comparison to a reference site in order to provide basic data for ecological restoration programs. Five samples of riparian soil, water, and sediments were collected at a reference site and five polluted sites during low-and high-flow water periods. In each site the vegetation type and soil cover were recorded. In all samples the abundance of ammonifiers, nitrate reducers, sulfate reducers, cellulolytic microorganisms, aerobic heterotrophs, and fermenters was measured. Besides, soil and sediment organic matter and humic and fulvic acids content were analyzed. Results: Our results showed that all sites differed in their water self-depuration characteristics with respect to the reference site and that these variations are due to a combination of natural and anthropic factors. The Suquía River presents a great heterogeneity of water self-depuration characteristics but it does not achieve a mitigation of the anthropogenic impact produced by Córdoba city. Conclusions: We concluded that restoration actions in lotic ecosystems should be adapted for each river sector.

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Section: Discussionsupporting

confidence: 75%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Multidisciplinary approach to assess the water self-depuration characteristics of Suquía River (Córdoba, Argentina)

Merlo

Abril

2014

Rev. Chil. de Hist. Nat.

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“…Additionally, in the bottom sediments of littoral zones, organic matter is degraded by both anaerobic and aerobic microorganisms and their composition and activity depend on the surrounding environment (Jonsson et al, 2001;Dzyuban, 2003). Among physicochemical characteristics, the availability of nutrients in surrounding media is mainly determining the development of different microbial groups forming the benthic community (Artigas et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Influence of invasiveAcer negundoleaf litter on benthic microbial abundance and activity in the littoral zone of a temperate river in Lithuania

Krevš

Kucinskiene

2017

Knowl. Manag. Aquat. Ecosyst.

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-Riparian forests are known as important source of allochthonous organic matter entering to water ecosystems via fallen leaves. However, leaf litter, depending on their quality, may create different conditions for benthic microorganisms functioning in littoral zone of water bodies. In order to evaluate the impact of riparian invasive Acer negundo on littoral water zone of the River Neris (Lithuania), we performed physicochemical and microbiological investigations in bottom sediments of three different sites of the river. One sampling site was close by riparian A. negundo, another close by native Alnus glutinosa location and a third zone was near the shore without riparian vegetation. Content of nutrients in the littoral sediments differed between invasive and native trees leaf litter accumulation sites, while not always significantly. The highest microbial densities as well as benthic community respiratory activity (expressed as the rate of organic carbon mineralization) occurred in A. negundo leaves accumulation site. In sediments of this site, the most intensive anaerobic terminal organic carbon mineralization process À sulfate reduction and the highest concentration of hydrogen sulfide were also observed. Differences in the intensity of mineralization processes between sites suggest that the replacement of the riparian native species such as dominant A. glutinosa by invasive A. negundo with higher biodegradability leaves may induce local changes in organic matter processing in the littoral zone of the river. The increase of littoral bioproductivity in the accumulation zone of A. negundo leaf litter can occur due to the inflow of available organic matter and its intensive mineralization.Keywords: leaf litter / benthic microorganisms / river Résumé -Influence de la litière d'Acer negundo invasif sur l'abondance et l'activité microbienne benthique dans la zone littorale d'une rivière en Lituanie. Les forêts riveraines sont connues comme source importante de matière organique allochtone entrant dans les écosystèmes aquatiques via les feuilles tombées. Cependant, la litière, en fonction de sa qualité, peut créer différentes conditions pour que les microorganismes benthiques fonctionnent dans la zone littorale des masses d'eau. Afin d'évaluer l'impact de l'Acer negundo invasif dans la zone d'eau littorale de la rivière Neris (Lituanie), nous avons procédé à des recherches physico-chimiques et microbiologiques dans les sédiments de trois sites différents de la rivière. Un site d'échantillonnage était proche de A. negundo riverain, un autre proche de l'emplacement d'Alnus glutinosa indigène et une troisième zone était près d'une rive sans végétation riveraine. Les contenus en nutriments dans les sédiments du littoral différaient entre les sites d'accumulation de déchets de feuilles d'arbres envahissants et natifs, bien qu'ils ne soient pas toujours significativement différents. Les densités microbiennes les plus élevées ainsi que l'activité respiratoire de la communauté benthique (exprimée en taux de minéral...

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Spatiotemporal distribution of bacterioplankton and bacteriobenthos in the Amur Liman and adjacent sea areas

Karetnikova

Garetova

2015

Oceanology

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Bacteriobenthos of the Upper Volga Reservoirs as a Characteristic of Their Environmental State

Cited by 7 publications

References 1 publication

Multidisciplinary approach to assess the water self-depuration characteristics of Suquía River (Córdoba, Argentina)

Multidisciplinary approach to assess the water self-depuration characteristics of Suquía River (Córdoba, Argentina)

Influence of invasiveAcer negundoleaf litter on benthic microbial abundance and activity in the littoral zone of a temperate river in Lithuania

Spatiotemporal distribution of bacterioplankton and bacteriobenthos in the Amur Liman and adjacent sea areas

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