materials on Ecology, Environmental Science - see on Scribd : ~ CookingFood.Org

materials on Ecology, Environmental Science - see on Scribd :
http://www.researchgate.net/profile/Sergei_Ostroumov/blog/7209_Ecology_Environmentmaterialsonlinefree; Materials Online Free (Ecology, Environment, Life Sciences, Aquatic Sciences): useful relevant publications and comments; list of web addresses.

Also, the addresses of some web sites see at:
http://www.researchgate.net/profile/Sergei_Ostroumov/blog/6766_EcologyEnvironmentonlinefree;
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These and some other papers are available:

see the Internet service entitled Scribd:

N. Ramírez-Baca, R. Saucedo-Terán, L.I. Manzanares-Papayanopoulos, J. Carrazco-Palafox, and G.V. Nevárez-Moorillón. Treatment for small polluted rivers: Design and performance of an experimental structure. Water SA, 2005, Vol. 31, No. 1, p. 101 — 106.

Abstract: In view of the economic reality of developing countries, it will not be possible to build all the necessary wastewater treatment plants (WWTP) needed to control the pollution of their rivers in the next 20 years. Therefore, low-cost alternative technologies must be developed to restore the water quality of polluted rivers. It is well-known that the self-purification cycle in nature uses several biotic and abiotic processes to restore polluted water to its former pristine quality. This cycle has been surpassed in many rivers due to continuous discharges of wastewater into them. A low-cost structure that will enhance the water quality in small polluted rivers is proposed and can be constructed in situ, based on three conditions: Disruption of plug flow, flow velocity and support material for bacterial growth. The design of the experimental stage of this structure can control slope, water flow, length, support material and the number of locks. Two 175m-long experimental models were constructed; both models were filled with crushed, washed and screened 10 to 12 mm diameter river stone. A mixture of primary and secondary effluents from a WWTP was used to test the models, with a chemical oxygen demand of COD ≈50 and 100 mg•l-1 respectively. For a uniform 0.5% slope, the maximum flows achieved were 27 and 30 l•min-1 with and without locks. The system worked efficiently breaking the plug flow, mixing the water flow and allowing stable aerobic microbial communities of 5.58 and 8.86 log UFC•g-1, and COD reductions ranging from 90.27 to 555.2 mg•min-1 depending on the pollutant concentration. Keywords: freshwater contaminants, self-purification, alternative technology, microbial communities; water, microbial, pollutants, effluent, aerobic, chemical oxygen demand, wastewater treatment plants (WWTP), rivers, water quality
      public Category: Research Reads: 54 Published: 11 / 25 / 2010 Share Add to Collections
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      J. Pandey, A. Chauhan, R. K. Jain. Integrative approaches for assessing the ecological sustainability of in situ bioremediation. FEMS Microbiology Reviews. Volume 33 Issue 2, Pages 324 – 375. More detail see at:http://www.researchgate.net/profile/Sergei_Ostroumov/blog/3380_Ecology_biology_life_sciences_Bibliography;

ABSTRACT: Application of microbial metabolic potential (bioremediation) is accepted as an environmentally benign and economical measure for decontamination of polluted environments. Bioremediation methods are generally categorized into ex situ and in situ bioremediation. Although in situ bioremediation methods have been in use for two to three decades, they have not yet yielded the expected results. Their limited success has been attributed to reduced ecological sustainability under environmental conditions. An important determinant of sustainability of in situ bioremediation is pollutant bioavailability. Microbial chemotaxis is postulated to improve pollutant bioavailability significantly; consequently, application of chemotactic microorganisms can considerably enhance the performance of in situ degradation. The environmental fate of degradative microorganisms and the ecological consequence of intervention constitute other important descriptors for the efficiency and sustainability of bioremediation processes. Integrative use of culture-dependent, culture-independent methods (e.g. amplified rDNA restriction analysis, terminal restriction fragment length polymorphism, denaturing/thermal gradient gel electrophoresis, phospholipid fatty acid, etc.), computational and statistical analyses has enabled successful monitoring of the above aspects. The present review provides a detailed insight into some of the key factors that affect the efficiency of in situ bioremediation along with a comprehensive account of the integrative approaches used for assessing the ecological sustainability of processes. The review also discusses the possibility of developing suicidal genetically engineered microorganisms for optimized and controlled in situ bioremediation.
      public Category: Research Reads: 64 Published: 11 / 25 / 2010 Share Add to Collections
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      Mearns, Alan J.; Reish, Donald J.; Oshida, Philip S.; Buchman, Michael; Ginn, Thomas; Donnelly, Robert. Effects of Pollution on Marine Organisms. — Water Environment Research, 2009 Literature Review, pp. 2070-2125.

DOI: 10.2175/106143009X12445568400737. This review covers selected 2008 peer-reviewed journal articles on the biological, chemical and physical effects of natural and anthropogenic disturbances on marine and estuarine plants and animals. The first five sections cover reviews and field and laboratory measurement activities (concentrations of contaminants, field surveys, toxicity testing and biomarkers). The last six sections focus further on pollution issues of current interest including endocrine disrupters, vessel and marine coatings, ballast water treatment, marine… KEYWORDS: tissue residues; toxicity; field; surveys; sediment quality; ecological risk assessment; endocrine disrupters; nano particles; POPS; PCBS; PAHS; pharmaceuticals; personal care products; trace; metals; pesticides; biomarkers; marine coatings; biocides; ballast, water, treatment; oil, spills; sewage; diseases; abnormalities; pollutants, contaminants, xenobiotics, ecotoxicology, toxicology, biological effects, bioassay, biotesting, aquatic, ecosystems,
      public Category: Research Reads: 49 Published: 11 / 25 / 2010 Share Add to Collections
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      Hartig E.K., Grozev O., Rozenzweig C. Climate change, agriculture and wetlands in Eastern Europe: vulnerability, adaptation and policy // Climatic Change 36: 107–121, 1997.

ABSTRACT. Naturally-occurring wetlands perform such functions as flood control, pollution filtration, nutrient recycling, sediment accretion, groundwater recharge and water supply, erosion control, and plant and wildlife preservation. A large concentration of wetlands is located in Eastern Europe. A significant amount of Eastern European wetlands has been converted to agricultural use in the past, and remaining wetlands are subject to agricultural drainage. Drained wetlands are used as prime agriculture lands for a variety of food crops. Other agricultural uses of wetlands range from growing Phragmites australis (common reed) for thatch and livestock feed, to collecting peat for heating and cooking fuel. Altered hydrologic regimes due to global climate change could further exacerbate encroachment of agricultural land use into wetlands
      public Category: Research Reads: 69 Published: 11 / 23 / 2010 Share Add to Collections
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      7 p.

      О.P. Garkuscha. MICROALGAL FOULING OF ALIVE AND DEAD VEGETABLE SUBSTRATE ON THE EXEMPLE OF ODESSA BAY (BLACK SEA). — Scientific Proceedings of the Ternopol National Pedagogical University, Series Biology, 2010, No. 3 (44) p.47-50.[ISSN 2078-2357];
Full text online free: http://www.ceemar.org/dspace/bitstream/11099/1077/1/Garkusha.pdf; also:http://www.scribd.com/doc/43691476
Abstract: The results of the investigation of microalgal fouling of alive and dead vegetable substrate have been shown. The some features of the species composition, abundance and biomass dominating of the microalgal fouling on the seaweeds and woody substrate have been revealed in the experiment had realizated in the natural conditions.(in Ukrainian language).
      public Category: Research Reads: 14 Published: 11 / 23 / 2010 Share Add to Collections
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      Y. CHATZINIKOLAOU and M. LAZARIDOU. Identification of the self-purification stretches of the Pinios River, Central Greece Mediterranean Marine Science. Volume 8/2, 2007, 19-32.

Abstract: The Pinios River basin in Thessaly, Greece, is intensively farmed and heavily polluted with poorly treated domestic and industrial waste. The river was divided into 35 homogenous stretches. We investigated the self-purification capacity along the different stretches of the Pinios based on the responses of the benthic macroinvertebrate community to municipal, industrial and agricultural pollution in the basin. Water quality was assessed by the performance of six diversity and biotic indices and scores for assessing water quality. Self-purification found by the downstream amelioration of water quality was evident at five stretches. These stretches should be safeguarded and priority should be given to restoration projects along the most water-quality-degraded stretches that lack the capacity for self-purification.
      public Category: Research Reads: 61 Published: 11 / 22 / 2010 Share Add to Collections
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      3 p.
      Edit Chatzinikolaou.2010.Desalination
      Chatzinikolaou Y., Ioannou A., Lazaridou M. Intra-basin spatial approach on pollution load estimation in a large Mediterranean river. – Desalination. 2010 (1 January) Volume 250, Issue 1, Pages 118-129.

ABSTRACT: In order to find the segments of Pinios River which lack the retention capacity of the BOD and nutrient input, the difference of the estimated input and output pollution loads was compared at upstream and downstream clustered areas of a total of 73 segments. Catchment areas ranged from 1 to 11,300 km2. Emissions were always higher than the actual transport, therefore retention was assumed to take place. Specific runoff, percentage of the surface water area and the calculated input of pollution loads (BOD, P, N) varied between the different Pinios River basin catchment areas. The transport to the emission load ratio was different between large and small catchments. The rate of retention among consecutive segments revealed that four lowland segments lacked in their relative retention capacity
      public Category: Research Reads: 70 Published: 11 / 22 / 2010 Share