Wyniki wyszukiwania

1

Relationship among biomass of algae and concentration of chlorophyll a, against the taxonomic structure of phytoplankton in three lakes on Lublin Polesie region

100%

Mencfel R.

Teka Komisji Ochrony i Kształtowania Środowiska Przyrodniczego

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2013

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tom 10

2

Effect of nitrate concentration on photosynthetic activity of unicellular algae cultures

100%

Goss M., Wilczok T.

Oceanologia

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1983

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tom 17

3

Soil algae in two farming systems of potato cropping

100%

Sieminiak D.

Bulletin of the Polish Academy of Sciences. Biological Sciences

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2003

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tom 51

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nr 1

4

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Species composition, seasonal dynamics and distribution of phytoplankton of the Zaporizke Reservoir

80%

Yakovenko V., Melnik S., Fedonenko E.

International Letters of Natural Sciences

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2017

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tom 62

Species composition, seasonal dynamics and distribution of phytoplankton were researched to characterize temporal dynamics and horizontal distribution of phytoplankton and to indicate the ecological status of the sites in the Zaporizke Reservoir. During 2015 - 2016 a seasonal dynamics of species composition and quantitative characteristics of phytoplankton have been studied near Monastyrsky island in upper part of the reservoir both in surface and bottom layers in conjunction with water temperature measurement. At early September 2016 phytoplankton sampling was performed at different sites of the Zaporizke Reservoir including the sites undergone to sewage impact. During phytoplankton seasonal dynamics diatom bloom was reported in March and early April and algae biomass was higher in the bottom layer with a gradual decrease in the direction of the surface layer. From July to October the apparent dominance of blue-green algae took place with a clear concentration in the surface layer. Domination of the species Microcystis aeruginosa determined phytoplankton distribution along the reservoir at the beginning of September. Despite the high resistance to the effects of toxic substances the level of Microcystis aeruginosa (Kützing) Kützing 1846 development decreased at the sites of direct sewage impact. At 100 m below the sewages sites degree of phytoplankton development increased mainly due to increase of blue-green algae abundance. Indexes of phytoplankton showed the best ecological state at the site «near Kodaki water draw-off» and the worst ecological state at the sites of direct sewage impact. The results obtained are important to indicate ecological state of the sites in the Zaporizke Reservoir.

5

Low cost alternative fuel from biomass

80%

Zeru D., Gebregergis H., Tilahun M., Sahu O.

International Letters of Natural Sciences

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2015

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tom 05

A major challenge for next decades is development of competitive renewable energy sources, highly needed to compensate fossil fuels reserves and reduce greenhouse gas emissions. Among different possibilities, which are currently under investigation, there is the exploitation of unicellular algae for production of biofuels and biodiesel in particular. Microalgae have the ability of accumulating large amount of lipids within their cells which can be exploited as feedstock for the production of biodiesel. The lipid content of different species of microalgae can range from 30%-70% of their dry weight. In this project a microalgae with lipid content of 60.095% was used. This means that 26gms of oil was obtained from 42gms of microalgae sample from which 17.624gm of biodiesel (FAME) was found at the end of trans-esterification. Algae biofuels avoid some of the previous drawbacks associated with crop-based biofuels as the algae do not compete with food crops. The favorable growing conditions found in many developing countries has led to a great deal of speculation about their potentials for reducing oil imports, stimulating rural economies, and even tackling hunger and poverty. Strong research efforts are however still needed to fulfill this potential and optimize cultivation systems and biomass harvesting.

6

Algal communities of humic acid sites: biomass and diversity in lake water versus peat-mat water

80%

Luscinska M., Soska R.

Polish Journal of Ecology

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1998

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tom 46

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nr 2

7

Blooms Cyanophyta in Siemianowka dam reservoir in the first years after filling

80%

Grabowska M.

Oceanological Studies

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1998

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tom 27

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nr 1

8

Eutrophication rate of lakes in the Jorka River system [Masurian Lakeland, Poland]: long-term changes and trophic correlations

80%

Hillbricht-Ilkowska A.

Polish Journal of Ecology

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2002

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tom 50

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nr 4

9

Long term effects of liming in a humic lake: ecosystem processes, biodiversity, food web functioning [Lake Flosek, Masurian Lakeland, Poland]

70%

Hillbricht-Ilkowska A., Dusoge K., Ejsmont-Karabin J., Jasser I., Kufel I., Ozimek T., Rybak J. I., Rzepecki M., Weglenska T.

Polish Journal of Ecology

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1998

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tom 46

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nr 4

10

Microbiological processes taking place in Dobczyce Reservoir during spring water bloom

61%

Bednarz T., Starzecka A.

Oceanological Studies

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1998

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tom 27

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nr 2

11

The sorption and removal of heavy metals by algal biomasses

61%

Pawlik-Skowronska B., Pirszel J., Skowronski T.

Oceanological Studies

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1998

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tom 27

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nr 1

12

Short-term variations in the concentrations of suspended particles, chlorophyll a and nutrients in the surface seawater layers of the Gdansk Deep

41%

Falkowska L., Latala A.

Oceanologia

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1995

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tom 37

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nr 2

Ograniczanie wyników

Relationship among biomass of algae and concentration of chlorophyll a, against the taxonomic structure of phytoplankton in three lakes on Lublin Polesie region

Effect of nitrate concentration on photosynthetic activity of unicellular algae cultures

Soil algae in two farming systems of potato cropping

Species composition, seasonal dynamics and distribution of phytoplankton of the Zaporizke Reservoir

Low cost alternative fuel from biomass

Algal communities of humic acid sites: biomass and diversity in lake water versus peat-mat water

Blooms Cyanophyta in Siemianowka dam reservoir in the first years after filling

Eutrophication rate of lakes in the Jorka River system [Masurian Lakeland, Poland]: long-term changes and trophic correlations

Long term effects of liming in a humic lake: ecosystem processes, biodiversity, food web functioning [Lake Flosek, Masurian Lakeland, Poland]

Microbiological processes taking place in Dobczyce Reservoir during spring water bloom

The sorption and removal of heavy metals by algal biomasses

Short-term variations in the concentrations of suspended particles, chlorophyll a and nutrients in the surface seawater layers of the Gdansk Deep