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Turkusowe Lake (Wolin Island, Poland) - Surface Waters Quality Changes in Years 1986-2010

Abstract

After presentation of the characteristics of a water reservoir in CaCO3 excavation pit, called the Turkusowe Lake, situated in the Wolin National Park on the Wolin Island, available results of the analyses referring to the quality of surface water of this water reservoir and being carried out since 1986 as well as those of own studies being carried out from 1999 to 2010 were gathered, collecting this way a research material covering the quarter-century 1986-2010. It was shown that the Turkusowe Lake is a water reservoir being resistant by nature to eutrophication (lake basin development and depth, surrounding by the heights adhering to it, and presence of CaCO3 building the lake basin), whereas an increase in the trophic level and development of eutrophication phenomena in the form of weak phytoplankton blooms being observed, particularly in 2005-2010, is connected with increased anthropogenic pressure in the form of direct discharge of municipal sewage to the lake and waste-water to the soil in the alimentation zone of underground waters feeding this lake. The extent of anthropogenic pressure was so big that it started to prevail over the natural processes limiting an increase in the trophic level in this lake.

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Towards Methodological Problems of Trophic State Assessment of Running Waters

Abstract

Deep analysis of trophic state assessment methods has led to conclusion, that currently there is no universal methodology and existing methods are characterized by significant shortcomings. The approach proposed by the authors is different from generally used. Authors start from the assumption, that trophic state can be reflected by the state of biotic balance, which can be described by the values of Index of Trophic State. Researches were carried out in order to assess the trophic state of running waters and to estimate the limiting role of biogenic substances for eutrophication process development on the base of author's concept founded on above mentioned index.

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Pollutant bioaccumulation in anchovy (Engraulis encrasicolus) tissue, fish species of commercial interest at the Romanian Black Sea coast

Abstract

The pollution of the marine ecosystem is a world-wide problem. Heavy metals and organochlorine compounds are among the most harmful elemental pollutants and are of particular concern because of their toxicity to humans. Anchovy (Engraulis encrasicolus, Linnaeus 1758), small pelagic fish with a key ecological role in the marine food web, is an important link connecting the lower and upper trophic levels, being also a valuable species for human consumption. Thus, anchovy samples were collected from different stations along the Romanian Black Sea coast and the analyzed contaminants were organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs) and heavy metals (Cd, Pb, Ni, Cu and Cr) in muscle tissue. Cd and Pb are the heavy metals that exceeded the allowed levels under the EU legislation (0.3 μg/g), Cd recorded values within the range 0.29-0.51 μg/g (average 0.36 ± 0.09 μg/g) and Pb recorded values within the interval 0.29-1.62 μg/g (average 0.75 ± 0.57 μg/g). Regarding organochlorine pesticides, the highest level was recorded by p,p′-DDE (6.76±1.21 ng/g/dry weight), followed by p,p′-DDD (3.88±0.97 ng/g/dry weight). Among PCB’s, the highest level was recorded by PCB 28 (5.19±1.29 ng/g/dry weight). The results of this study revealed that heavy metals, pesticides and polychlorinated biphenyls values identified in anchovy tissue, species of commercial interest from the Black Sea, are not threatening to human consumers.

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Optimization of The Hydraulic System of The Storage Reservoir Hydraulically Unloading The Sewage Network

Abstract

After presentation of the characteristics of a water reservoir in CaCO3 excavation pit, called the Turkusowe Lake, situated in the Wolin National Park on the Wolin Island, available results of the analyses referring to the quality of surface water of this water reservoir and being carried out since 1986 as well as those of own studies being carried out from 1999 to 2010 were gathered, collecting this way a research material covering the quarter-century 1986-2010. It was shown that the Turkusowe Lake is a water reservoir being resistant by nature to eutrophication (lake basin development and depth, surrounding by the heights adhering to it, and presence of CaCO3 building the lake basin), whereas an increase in the trophic level and development of eutrophication phenomena in the form of weak phytoplankton blooms being observed, particularly in 2005-2010, is connected with increased anthropogenic pressure in the form of direct discharge of municipal sewage to the lake and waste-water to the soil in the alimentation zone of underground waters feeding this lake. The extent of anthropogenic pressure was so big that it started to prevail over the natural processes limiting an increase in the trophic level in this lake.

Open access
Trophic Status of Blidinje Lake (Bosnia and Herzegovina) Based on the Determination of the Trophic State Index (TSI)

Abstract

Blidinje lake is an integral part of the Nature Park Blidinje established in 1995. Blidinje lake is largest mountain lake in Bosnia and Herzegovina (B&H) according to the surface and water supplies. Considering the surface, it is surprising to its low depth and large surface changes.

Eutrophication is defined as the ‘biological effect of increasing concentrations of plant nutrients in aquatic ecosystems’. Eutrophication results in increased primary production or the production of aquatic plants. It can adversely affect the suitability of the use of water resources for other purposes. Metabolism of shallow lakes is extremely specific such as classical connections; algal biomass with a load of nutrients in shallow lakes can have catastrophic effects.

Nutrients that come directly or indirectly into water lead to increase in the amount of algae as well as changes in the composition of phytoplankton, where there is suppression of diatoms and green algae by cyanobacteria.

The values of parameters assessing trophic index (Trophic State Index [TSI]) are total phosphorus, chlorophyll a and transparency. This method that generalises numerous data using mathematical equations allows the expression of trophic level.

On the basis of earlier studies on physical and chemical parameters of water quality in Blidinje lake, Carlson trophic index was calculated, and based on that assessment, trophic level is given.

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Limnological study of Serbian oxbow shaped Lake Srebrno, with special emphasis on the benthic community composition and structure

Abstract

Detailed limnological study of the Lake Srebrno (Serbia) bottom fauna was performed in March 2007. Investigations included qualitative, quantitative, and saprobiological analysis of bottom fauna communities, physical and chemical analysis of sediments and determination of chlorophyll a concentration, as well as saprobic and trophic status analyses. Samples were collected at eighteen sites distributed along a shoreline and in deeper sections of the lake. Twenty taxa from nine macroinvertebrate groups were recorded. Family Chironomidae had the biggest index of participation, the highest species diversity and the largest density of populations in benthocenoses of Lake Srebrno. Faunistic similarity between sites was estimated according to Sorensen’s Quotient of Similarity (QS). The majority of benthocenoses - 56% showed a medium level of faunistic similarity (QS = 21-60%), and 42% of benthocenoses showed a high level of faunistic similarity (QS = 61-100%). The classification of Lake Srebrno based on saprobic and trophic levels was assessed. Saprobic level was in the range from alpha-meso- to poly-alpha-mesosaprobity. The water quality of the lake ranged from class III and between IV and III class. Generally, Lake Srebrno had eutrophic status with the gradation to hypertrophy.

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Variations of selected soil properties in the grass fields invaded and uninvaded by invasive goldenrod (Solidago canadensis L.)

). Banska Bystrica: ŠOP SR. de Groot, M., Kleijn, D. & Jogan N. (2007). Species groups occupying different trophic levels respond differently to the invasion of semi-natural vegetation by Solidago canadensis. Biol. Conserv., 136, 612−617. DOI : 10.1016/j.biocon.2007.01.005. Duda, J.J., Freeman, D.C., Emlen, J.M., Belnap, J., Kitchen, S.G., Zak, J.C., Sobek, E., Tracy, M. & Montane J. (2003). Differences in native soil ecology associated with invasion of the exotic annual chenopod, Halogeton glomeratus. Biol. Fertil. Soils, 38, 72−77. DOI

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Effect of Landscape Use on Water Quality of the Žitava River

://CRAN.R-project.org/package=heplots Government Regulation no. 269/2010 Coll., Laying down the requirements for achieving good status of waters, as amended by no. 398/2012 Coll. (in Slovak). Húska, D., Jurík, Ľ., Jureková, Z., Kaletová, T., Krupová, K. & Mandalová K. (2013) Impact of anthropogenic factors on surface water quality in the partial catchment area of Žitava (in Slovak) . Nitra: SPU. Johnson, R.C., Jin, H.S., Carreiro, M.M. & Jack J.D. (2013). Macroinvertebrate community structure, secondary production and trophic-level dynamics in urban streams affected by non-point-source pollution

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Effect of canopy density on litter invertebrate community structure in pine forests

-367. doi: 10.1016/S0269-7491(97)00157-7 Brygadyrenko, V.V. (2003). Fauna of ground beetles (Coleoptera, Carabidae) of Dnipropetrovsk region (in Russian). Problems of Ecology and Environmental Protection in the Technogenic Region, 3, 78-88. Brygadyrenko, V.V. & Komarov O.S. (2008). Trophic structure of litter mesofauna: Biomass differentiation between trophic levels (in Ukrainian). Visnyk of Dnipropetrovsk University. Biology, Ecology, 16, 12-23. DOI : 10.15421/010840. Dinnage, R., Cadotte, M.W., Haddad, N.M., Crutsinger, G

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Comparison of Phytotoxicity of Selected Phosphonium Ionic Liquid

aquatic organisms of different trophic levels. Aquat Toxicol. 2010;96:290-297. DOI: 10.1016/j.aquatox.2009.11.008. [24] Cho Ch-W, Pham TPT, Jeon Y-Ch, Vijayaraghavan K, Choe W-S, Yun Y-S. Toxicity of imidazolium salt with anion bromide to a phytoplankton Selenastrum capricornutum: effect of alkyl-chain length. Chemosphere. 2007;69:1003-1007. DOI: 10.1016/j.chemosphere.2007.06.023. [25] Couling DJ, Bernot RJ, Docherty KM, Dixon JNK, Magin EJ. Assessing the factors responsible for ionic liquid toxicity to aquatic organisms via quantitative structure

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