Wyniki wyszukiwania - Biblioteka Nauki

1

Zbiornik sulejowski i możliwości jego rekultywacji pod kątem spełnienia wymogów Ramowej Dyrektywy Wodnej

100%

Zalewski M. , Izydorczyk K.

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2008

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tom Nr 12

500-504

PL

Na przykładzie zbiornika wodnego Su-lejów omówiono zabieg biohydromanipu-lacji jako jeden ze sposobów regulowania jakości wody w ekosystemach. Wskazano na potrzebę kompleksowych działań mających na celu zarówno zmniejszenie dopływu do zbiornika ładunków azotu i fosforu, jak również wykorzystanie ekologicznych aspektów cyklu hydrologicznego.

EN

Citing the example of the Sulejów water reservoir, the article presents the biohydromanipulation operation as one of methods of the water quality regulation in ecosystems. It indicates the need of complex actions aiming at reduction of nitrogen and phosphor loads inflow into the reservoir and using ecological aspects of the hydrologi-cal cycle.

2

Wykorzystanie pomiarów fluorescencji in vivo do monitoringu dynamiki fitoplanktonu ze szczególnym uwzględnieniem sinic

100%

Izydorczyk K. , Tarczynska M.

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tom 05

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nr Polish Suppl.

PL

Tradycyjne metody analizy fitoplanktonu takie jak mikroskopowe określanie biomasy czy oznaczanie stężenia chlorofilu metodą spektrofotometryczną mogą być uzupełnione o pomiary fluorescencji in vivo barwników fotosyntetycznych. Pomiary fluorescencji chlorofilu in vivo są najczęściej wykorzystywane do analizy przestrzennego rozmieszczenia fitoplanktonu w zbiornikach wodnych. Jednakże, pomiary fluorescencji chlorofilu a nie dostarczają informacji o strukturze taksonomicznej próby, a zwłaszcza o obecności, szczególnie niepożądanych z punktu widzenie użytkowania zbiornika, sinic. Pomiary fluorescencji fikocyjaniny in vivo mogą posłużyć jako cenny wskaźnik obecności sinic w próbach fitoplanktonowych.

EN

The method of microscopic enumeration of phytoplankton biomass and structure and the chlorophyll a extraction method could be complemented by in vivo fluorescence technique. The mapping of chlorophyll concentration is the most common application of measured chlorophyll in vivo fluorescence. However, using chlorophyll in vivo fluorescence measurement do not describe the composition of the phytoplankton community. It is especially important to detect cyanobacteria selectively in the mixed phytoplankton assemblages. Measurement of phycocyanin in vivo fluorescence seems to be a useful indicator of the presence of cyanobacteria in water samples.

3

The influence of wind on cyanobacterial bloom development in shallow, lowland reservoir in central Poland

100%

Izydorczyk K. , Tarczynska M.

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tom 05

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nr 3

195-203

4

Ekohydrologia - systemowe podejście do ochrony i rekultywacji jezior

100%

Zalewski M. , Izydorczyk K.

Przegląd Komunalny

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2007

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tom nr 6

67-70

PL

Z perspektywy postępującej degradacji środowiska przyrodniczego w skali globalnej oddziaływanie człowieka na ekosystemy można podzielić na dwie główne formy. Pierwszą jest emisja substancji toksycznych jako wynik wzrastającego zużycia energii i materii oraz chemizacji, drugą zaś - degradacja ewolucyjnie ukształtowanych cykli krążenia wody i materii w ekosystemach.

5

Wysoko efektywne strefy buforowe dla zwiększenia potencjału ekologicznego i turystycznego zbiornika sulejowskiego

80%

Frątczak W. , Izydorczyk K. , Zalewski M.

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2013

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tom Nr 12

479--483

PL

Zbiornik sulejowski, ze względu na walory przyrodnicze i kulturowe doliny, stanowi ważny obszar turystyczny województwa łódzkiego; niestety występujące w okresie letnim toksyczne zakwity sinic ograniczają użytkowanie zbiornika. Podjęte działania w ramach projektu LIFE+EKOROB ,,Ekotony dla redukcji zanieczyszczeń obszarowych" skupiają się na opracowaniu Programu działań z wykorzystaniem potencjału biotechnologii ekosystemowych m.in. wysoko efektywnych stref buforowych do poprawy jakości wód dopływających do zbiornika, a tym samym redukcji intensywności zakwitów sinic. Skonstruowane demonstracyjne strefy buforowe nad zbiornikiem sulejowskim są przykładem multifunkcjonalnych stref, w których harmonizuje się działania podjęte na rzecz ochrony środowiska z potrzebami lokalnej społeczności, maksymalizując w ten sposób szanse rozwoju obszaru.

EN

The Sulejów reservoir, due to the natural and cultural values of the ѵаllеу, constitutes an important tourist area of the Łódzkie Voivodeship. Unfortunately, toxic cyanosis blooms in the summer period reduce the possibility of tourist exploitation of the reservoir. The activities undertaken as part of the LIFE+EKOROB „Ecotons for reducing diffusion pollution” project focus on elaboration of the Programme of action using the ecosystem biotechnology potential, e.g. highly effective buffer zones for increasing the quality of the water flowing into the reservoir and thus reducing the intensity of cyanosis blooms.

6

Toxic cyanobacteria strains in lowland dam reservoir [Sulejow Res., Central Poland]: amplification of mcy genes for detection and identification

80%

Mankiewicz-Boczek J. , Urbaniak M. , Romanowska-Duda Z. , Izydorczyk K.

Polish Journal of Ecology

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2006

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tom 54

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nr 2

EN

Excessive eutrophication causes the growth of microcystin-producing Cyanobacteria and leads to an increased human health risk. This paper reports the analyses of Cyanobacteria toxigenicity (the degree of potential toxicity) in lowland dam reservoir (Sulejów Reservoir, Central Poland) by the use of PCR-based methods. The reservoir (area 22 km², mean depth 3.3 m) is very eutrophic water body permanently blooming with blue-green algae (mainly Microcystis aeruginosa). For identification of cyanobacterial genus the 16S rRNA region was used. Cyanobacterial genus was detected during the whole monitoring period in summer 2003. The potential toxicity of cyanobacteria was determined by amplification of selected mcyA,B,E genes in the microcystin biosynthesis pathway. All of the analyzed genes were detected at the beginning of the growing season during low cyanobacterial biomass (0.67 mg l⁻¹). 89% of the samples were found to be positive for mcyA detection. Early detection of mcy genes at the beginning of summer preceded a period of the highest microcystins concentration (2.91 µg l⁻¹ in maximum) and toxicity established by ELISA (enzyme-linked immunosorbent assay – enables determination of microcystins concentration) and PPIA (protein phosphatase inhibition assay – enables estimation of microcystins toxicity). We show that toxigenic (potentially toxic) strains of cyanobacteria occurred in Sulejów Reservoir throughout the summer and genetic markers were effective in early identification of microcystin-producing genera. Application of molecular methods in parallel with toxicity testes can provide complete information to prevent any human health risk.

7

Toxicity assessment of water samples from rivers in Central Poland using a battery of microbiotests - a pilot study

80%

Kaza M. , Mankiewicz-Boczek J. , Izydorczyk K. , Sawicki J.

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2007

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tom 16

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nr 1

EN

An evaluation of wastewater hazards to aquatic environments with biotests can support traditional monitoring. The conventional classification of surface water is based primarily on chemical and physical analyses. The toxicity of samples from 4 Polish rivers - Pilica, Bzura, Ner and Utrata, which are polluted to different degrees, has been assessed with a battery of biotests composed of representatives of producers (micro - algae - Pseudokirchneriella subcapitata, duckweed - Lemna minor), consumers (rotifer - Brachionus calyciflorus, crustaceans - Daphnia magna, Thamnocephalus platyurus) and decomposers (bacteria - Vibrio fisheri, protozoans - Spirostomum ambiguum, Tetrahymena thermophila). The physicochemical characteristics of water also have been performed. No permanent and highly toxic effects were observed. The most toxic effects in spring did not find a confirmation in studies in autumn and vice versa. Most test organisms gave responses. However, it is too early to evaluate the sensitivity of biotests and their usefulness in a monitoring system for rivers. A minimum of one more year of study is needed.

8

A biogeochemical barrier to enhance a buffer zone for reducing diffuse phosphorus pollution - preliminary results

61%

Izydorczyk K. , Fratczak W. , Drobniewska A. , Cichowicz E. , Michalska-Hejduk D. , Gross R. , Zalewski M.

International Journal of Ecohydrology and Hydrobiology

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2013

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tom 13

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nr 2

9

Appearance of toxigenic cyanobacteria in two Polish lakes dominated by Microcystis aeruginosa and Planktothrix agardhii and environmental factors influence

61%

Gagala I. , Izydorczyk K. , Skowron A. , Kamecka-Plaskota D. , Stefaniak K. , Kokocinski M. , Mankiewicz-Boczek J.

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tom 10

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nr 1

EN

The aim of this study was to analyze and compare the relationship between environmental factors (temperature; pH; total phosphorus - TP and nitrogen - TN and their ratio) and occurrence of microcystin producing cyanobacteria in two shallow, eutrophic Polish water bodies, Sulejów Reservoir (Central Poland) and Bnińskie Lake (Western Poland). Samples for analyses were collected from June till October 2005. Cyanobacteria Microcystis aeruginosa and Planktothrix agardhii, responsible for microcystins production, were detected respectively for Sulejów Reservoir and Bnińskie Lake. Molecular analysis of the mcyE gene, indicated the presence of toxigenic strains of cyanobacteria in both water bodies throughout the whole sampling period. The highest extracellular microcystins toxicity established by PPIA was 2.83 μg dm-3 and 2.19 μg dm-3 in samples dominated by M. aeruginosa and P. agardhii respectively. Two different environmental factors in studied water bodies were crucial in occurrence of hepatotoxic cyanobacteria. The strong correlation between biomass of M. aeruginosa and total nitrogen (TN) in Sulejów Reservoir (R=0.83; p<0.05) was observed. Strong negative correlation was found between biomass of P. agardhii and temperature (R=-0.77; p<0.05 and R=-0.70; p<0.05) in Bnińskie Lake.

10

Diurnal variations in carbon isotope composition of dissolved inorganic carbon [DIC] in a freshwater dam reservoir

51%

Orion-Jedrysek M. , Kurasiewicz M. , Trojanowska A. , Lewicka D. , Omilanowska A. , Kaluzny A. , Izydorczyk K. , Drzewicki W. , Zalewski M.

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nr 1-4

53-59

11

Ecohydrological system solutions to enhance ecosystem services: the Pilica River Demonstration Project

41%

Wagner I. , Izydorczyk K. , Kiedrzynska E. , Mankiewicz-Boczek J. , Jurczak T. , Bednarek A. , Wojtal-Frankiewicz A. , Frankiewicz P. , Ratajski S. , Kaczkowski Z. , Zalewski M.

International Journal of Ecohydrology and Hydrobiology

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2009

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tom 09

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nr 1

EN

The application of ecohydrology principles as part of Integrated Water Resources Management (IWRM) has the potential to enhance the resilience of a catchment to anthropogenic impacts. Linking this approach with an understanding of water users and social and economic conditions in a given region, provides a foundation for the development of system solutions. Improving the quality of the environment, and the ecosystem services provided, can be a driver of new employment opportunities that contribute to both the overall economy of a region and sustainability. With these goals in mind, the paper presents a four-step approach for implementation of ecohydrology principles in IWRM, including a) monitoring of threats, b) analysis of the cause-effect relationships, c) development of methods, and d) system solutions. This approach was formulated and tested within a UNESCO-IHP and UNEP-IETC Demonstration Project on the Pilica River in Poland. This project aims to support fulfilment of Poland's obligations Resulting form the EU Water Framework Directive and other European directives, and constitutional obligations for sustainable development. Attempts to transfer lessons learned to other catchments and socio-ecological systems (such as urban catchments) are highlighted.