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1
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Oceanological Studies
EN The results of differences in phytoplankton pigments composition are presented in this paper. Samples from the Southern Baltic taken during three cruises on r/v "Oceania" (14.02 - 28.02.2000, 06.05 - 16.05.2000 and 20.09 - 01.10.2000) were examined. Qualification and quantification analyses of chlor[...]
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Oceanological and Hydrobiological Studies
EN The objective of this study was to determine the change in phytoplankton biomass in Lake Niegocin following modernization of the sewage treatment plant in Giżycko, Poland in 1994. Phytoplankton samples were taken from March to November 1991 – 2001, and chlorophyll levels were determined from 1986 th[...]
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Polish Journal of Ecology
EN Analyses of lake water taken in discrete sites along a c. 2 km transect from a 1 m depth in a eutrophic Lake Miko?ajskie revealed a uniform horizontal distribution of temperature and oxygen concentrations. Conductivity, soluble reactive phosphorus and particularly chlorophyll concentrations showed, [...]
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Polish Journal of Ecology
EN Hydrologic division of the Great Masurian Lakes (North-eastern Poland) into the northen and southern drainage basin was found to be reflected in different trophic status of lakes. Chlorophyll (but not nutrient) concentrations in the northern part of the system were significantly lower than those in [...]
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Optica Applicata
2017 Vol. 47, nr 4 591--599
EN Effect of viscosity of a liquid on the far-field diffraction pattern due to spatial self-phase modulation is investigated. Chlorophyll extract in acetone at different concentrations is used as the low viscous nonlinear samples and commercial engine oils, synthetic and natural. It is also used as hig[...]
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Oceanologia
2001 No. 43 (3) 315-328
EN The paper presents the results of experiments to determine the influence of selected physico-chemical factors - oxygen, visible light and temperature - on the decomposition of (1) chlorophylls a, b and c, chlorophyll a derivatives and beta-carotene in acetone solution, and (2) chlorophyll a and beta[...]
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Oceanologia
2011 No. 53 (3) 731-743
EN For many years the Nordic Seas have been the subject of research into ocean circulation carried out by the Institute of Oceanology PAS, especially the inflow of Atlantic water and the intensive turbulent mixing of these waters with Arctic and shelf waters. Ocean currents affect various biological pr[...]
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Polish Journal of Ecology
EN Rotifer communities inhabiting wet sands of lake beaches are dependent in their functioning on permanent input of organic matter from neighbouring sites. The aim of the study is to test the hypothesis that trophic state of lake waters may influence densities and structure of psammon communities of R[...]
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Nukleonika
EN Chlorophyll content in plant leaves is correlated with the yield and nitrogen content in plants. Non-destructive investigations of chlorophyll content in leaves of 3 varieties of sugar beet grown from seeds revealed that a low frequent magnetic field, acting independently or in combination with othe[...]
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Journal of Ecological Engineering
EN The paper presents the evaluation of trophic status of Lake Niepruszewskie in the years 1994–2013. This is the first lake in the Samica Stęszewska river, flowing dis-tally through the lakes of the Wielkopolski National Park. Source part of the Samica Stęszewska river basin was, in the years 2004–201[...]
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Oceanologia
2006 No. 48 (1) 125-144
EN The effect of different methodological steps on the analysis of chlorophyll a (chl a) was tested with algae cultures and Baltic Sea water. Selected experiments were tested with ANOVAs for significant differences between treatments. The results of the experiments led to the following recommendations:[...]
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Oceanologia
2019 No. 61 (1) 170--177
EN Phosphatase is an extracellular enzyme which releases inorganic phosphate (Pi) from dissolved organic phosphate and indirectly organic carbon as nutrients for aquatic communities. Here, we have examined spatiotemporal variation in total alkaline phosphatase activity (APA) over a short period off Tri[...]
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Oceanologia
2010 No. 52 (1) 101-125
EN Mathematical expressions were derived describing the distribution and concentration of individual phytoplankton pigments with respect to biotic factors in the southern Baltic. Relationships were established between the chlorophyll a concentration and the total phytoplankton biomass (represented by t[...]
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Oceanologia
2014 No. 56 (4) 737--756
EN Validation of algorithms for the retrieval of concentrations of chlorophyll (Chl) and total suspended matter (TSM) in the Gulf of Finland from satellite ocean colour data was carried out using field measurement data from summer 2012 and 2013. These data included spectral values of the remote sensing[...]
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Journal of Ecological Engineering
EN In order to understand the effects of ultraviolet-B (UV-B) radiation and salinity stress on the visual quality and morphological parameters, one-year-old seedlings of rosemary (Rosmarinus officinalis L.) were grown under three UV-B levels (0, 4.32, 6.05 kJ m-2 d-1) and four salinity regimes (Control[...]
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Woda-Środowisko-Obszary Wiejskie
2006 T. 6, z. 1 133-138
PL W latach 2002-2004 badano zawartość chlorofilu α i feofityny w glonach planktonowych Zalewu Szczecińskiego. Zawartość chlorofilu była bardzo zmienna w ciągu roku. Współczynnik zmienności wynosił maksymalnie 66,0%. W sezonie wegetacji glonów planktonowych kontrolne pomiary zawartości chlorofilu α pow[...]
EN Measurements of chlorophyll α and pheophytin in phytoplankton of Szczecin Lagoon were carried out once a week over three hydrologic years 2002-2004. Concentrations of chlorophyll α varied within a wide range: the yearly coefficient of variation ranged from 29.4 to 66.0%. May was the best month for m[...]
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Oceanological and Hydrobiological Studies
EN RP-HPLC (reversed-phase high-performance liquid chromatography) was used to analyse chlorophyll and carotenoid pigments in cyanobacteria and algae from the Baltic Sea, belonging to different taxonomic groups. The following species were used: Cyclotella meneghiniana - diatom, Oocystis submarina - gre[...]
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Chemia i Inżynieria Ekologiczna
PL Wzrost stężenia pierwiastków śladowych w środowisku powyżej optymalnego poziomu niesie ze sobą szereg zaburzeń w funkcjonowaniu organizmu roślinnego. Szczególny wpływ na bioprzyswajalność Zn ma stężenie Cu w środowisku odżywczym roślin, ponieważ te pierwiastki konkurują ze sobą o ten sam nośnik w bł[...]
EN An increase of concentration of trace elements in the environment over the optimal level leads to a number of disorders in functioning of a plant organism. Competition kinetic studies on Cu2+ and Zn2+ concentrations suggests that the metals are absorbed using the same carrier in the membrane. The ma[...]
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Chemia i Inżynieria Ekologiczna
PL Celem podjętych badań było określenie wpływu wzrastających dawek ołowiu na plon, zawartość chlorofilu oraz parametry fluorescencji chlorofilu w kukurydzy hodowanej w kulturach wodnych. Doświadczenie hydroponiczne zostało przeprowadzone w szklarni doświadczalnej. Schemat doświadczenia obejmował 10 ob[...]
EN The investigations aimed to determine the effect of increasing lead doses on the yield, chlorophyll contents and parameters of chlorophyll fluorescence in maize cultivated in aquaculture. The hydroponic experiment was carried out in an experimental greenhouse. The experimental design comprised 10 ob[...]
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Zeszyty Naukowe Politechniki Białostockiej. Inżynieria Środowiska
2003 Z. 16, t. 1 170-175
PL W pracy omówiono podstawowe zagadnienia związane z oznaczaniem chlorofilu a w wodach rzecznych oraz przedstawiono wyniki badań zawartości tego wskaźnika w rzece Narew na terenie Narwiańskiego Parku Narodowego. W badanych próbach wody z rzeki Narew zaobserwowano sezonowość zmian zawartości chlorofilu[...]
EN In this paper the content the main problems connected with the measurement content of chlorophyll a were showed. The level of the chlorophyll a in Narew river changed and it depends on the period of the year. The Narew river was classified to the group of euthrophic waters. The differences of method[...]
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