Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "chlorophyll concentration" wg kryterium: Temat

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 18
Tytuł:
Comparison of in situ and satellite ocean color determinations of particulate organic carbon concentration in the global ocean
Autorzy:
Swirgon, M.
Stramska, M.
Powiązania:
https://bibliotekanauki.pl/articles/48631.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
ocean colour
particulate organic carbon
dissolved organic carbon
ocean ecosystem
chlorophyll concentration
phytoplankton biomass
Źródło:
Oceanologia; 2015, 57, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chlorophyll fluorimetry as a method for studying light absorption by photosynthetic pigments in marine algae
Autorzy:
Matorin, D.N.
Antal, T.K.
Ostrowska, M.
Rubin, A.B.
Ficek, D.
Majchrowski, R.
Powiązania:
https://bibliotekanauki.pl/articles/48459.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
alga
chlorophyll a concentration
photosynthetic pigment
fluorescence
marine alga
phytoplankton
light absorption
chlorophyll fluorimenty
Opis:
Using laboratory cultures of algae and natural phytoplankton populations from Nhatrang Bay (South China Sea), the relationship between the chlorophyll fluorescence F0, the chlorophyll a concentration Ca and light absorption capacities of algae cells was studied. It is shown that the ratio F0/Ca depends mainly on the species composition of the algae population; hence, the concentration Ca can be measured with the fluorescence method with acceptable accuracy only when the species composition of algae populations varies over a rather narrow range. The fluorescence F0 can, however, be a good index of the total absorption capacities of different phytoplankton species, because the intensity of F0 depends on the sum total of light absorbed by all photosynthetic pigments in a plant cell. Thus, the fluorescence F0 measures not only the concentration of chlorophyll a, but that of all photosynthetic pigment concentrations.
Źródło:
Oceanologia; 2004, 46, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of primary productivity estimates in the Baltic Sea based on the DESAMBEM algorithm with estimates based on other similar algorithms
Autorzy:
Stramska, M.
Zuzewicz, A.
Powiązania:
https://bibliotekanauki.pl/articles/48944.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
ocean colour
satellite remote sensing
Baltic Sea
primary productivity
algorithm
marine ecosystem
chlorophyll concentration
sea surface temperature
photosynthetic active radiation
latitude
Źródło:
Oceanologia; 2013, 55, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spatial distribution of biological and physical sediment parameters in the Western Gulf of Gdansk
Autorzy:
Huzarska, K.
Powiązania:
https://bibliotekanauki.pl/articles/48994.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
spatial distribution
surface sediment
physical property
biological activity
microphytobenthos
primary production
extracellular polymeric substance
chlorophyll a concentration
carbohydrate concentration
Źródło:
Oceanologia; 2013, 55, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spatio-temporal variability of the phytoplankton biomass in the Levantine basin between 2002 and 2015 using MODIS products
Autorzy:
El Hourany, R.
Fadel, A.
Gemayel, E.
Abboud-Abi Saab, M.
Faour, G.
Powiązania:
https://bibliotekanauki.pl/articles/48550.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
spatio-temporal variability
phytoplankton biomass
remote sensing
sea surface temperature
chlorophyll a concentration
phytoplankton bloom
Mediterranean Sea
Opis:
The Levantine basin in the Eastern Mediterranean Sea is subject to spatial and seasonal variations in primary production and physical-chemical properties both on a short and long-term basis. In this study, the monthly means of daily MODIS product images were averaged between 2002 and 2015, and used to characterize the phytoplankton blooms in different bioregions of the Levantine basin. The selected products were the sea surface temperature (SST), the chlorophyll-a concentration (Chl-a), the diffuse attenuation coefficient for downwelling irradiance at 490 nm (Kd_490) and the colored dissolved organic matter index (CDOM_ index). Our results showed that phytoplankton blooms were spatially and temporally variable. They occurred in late autumn at the Nile Delta, in early spring and late summer at the eastern coastline, and in spring at the northeastern coastline. The northern coastline and the open water had a common bloom occurring in winter. The Nile Delta was found to be the most productive area of the Levantine basin showing high Chl-a. Kd_490 and Chl-a present a parallel co-variation indicating a dominance of Case 1 waters in the Levantine basin. The CDOM_index shows a phase shift with the Chl-a fluctuation. A strong inverse correlation was observed between both Chl-a and CDOM_index with SST, connoting an indirect relation represented by a depression of CDOM in summer by photobleaching, and a suppression of the chlorophyll-a concentration due to water stratification, together with nutrient stress. An overestimation of the Chl-a values had been signaled by the use of the CDOM_index, suggesting a correction plan in a latter study.
Źródło:
Oceanologia; 2017, 59, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The impact of turbulence and phytoplankton dynamics on foam formation, seawater viscosity and chlorophyll concentration in the Eastern English Channel
Autorzy:
Kesaulya, I.
Leterme, S.C.
Mitchell, J.G.
Seuront, L.
Powiązania:
https://bibliotekanauki.pl/articles/48511.pdf
Data publikacji:
2008
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
chlorophyll a concentration
phytoplankton
turbulence
plankton
foam
foam formation
spring bloom
rheology
viscosity
Phaeocystis globosa
sea water
Opis:
The space-time dynamics of chlorophyll a concentration and seawater excess viscosity has been investigated in the hydrographically contrasting inshore and offshore water masses of the eastern English Channel. This was done during the phytoplankton spring bloom dominated by Phaeocystis globosa before and after the very large-scale formation of foam induced by an increase in wind-driven turbulence and the related wave breakings. The results suggest that the dynamics of chlorophyll a concentration and seawater excess viscosity are differentially controlled by the formation of foam through the intensity of the spring bloom and wind-generated turbulence.
Źródło:
Oceanologia; 2008, 50, 2; 167-182
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Summer mesozooplankton community of Moller Bay (Novaya Zemlya Archipelago, Barents Sea)
Autorzy:
Dvoretsky, V.G.
Dvoretsky, A.G.
Powiązania:
https://bibliotekanauki.pl/articles/49179.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
mesozooplankton
biomass
vertical distribution
water temperature
salinity
chlorophyll a concentration
Barents Sea
Moller Bay
Novaya Zemlya Archipelago
Źródło:
Oceanologia; 2013, 55, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of biotic factors on phytoplankton pigment composition and resources in Baltic ecosystems: new analytical results
Autorzy:
Ston-Egiert, J.
Lotocka, M.
Ostrowska, M.
Kosakowska, A.
Powiązania:
https://bibliotekanauki.pl/articles/48253.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
chlorophyll
chlorophyll a
concentration
carotenoid
photosynthetic carotenoid
photoprotecting carotenoid
pigment
phytoplankton biomass
Baltic Sea
biotic factor
Baltic ecosystem
Źródło:
Oceanologia; 2010, 52, 1; 101-125
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distributions of photosynthetic and photoprotecting pigment concentrations in the water column in the Baltic Sea: an improved mathematical description
Autorzy:
Ston-Egiert, J.
Majchrowski, R.
Ostrowska, M.
Powiązania:
https://bibliotekanauki.pl/articles/48084.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
phytoplankton
primary production
chlorophyll b
chlorophyll c
carotenoid
pigment concentration
photoprotection
water column
Baltic Sea
mathematical description
Źródło:
Oceanologia; 2019, 61, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Remote sensing of vertical phytoplankton pigment distributions in the Baltic: new mathematical expressions. Part 1: Total chlorophyll a distribution
Autorzy:
Ostrowska, M.
Majchrowski, R.
Ston-Egiert, J.
Wozniak, B.
Ficek, D.
Dera, J.
Powiązania:
https://bibliotekanauki.pl/articles/47972.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
remote sensing
phytoplankton pigment
chlorophyll a
vertical distribution
concentration
Baltic Sea
distribution
Opis:
This article is the first in a series of three describing the modelling of the vertical different photosynthetic and photoprotecting phytoplankton pigments concentration distributions in the Baltic and their interrelations described by the so-called non-photosynthetic pigment factor. The model formulas yielded by this research are an integral part of the algorithms used in the remote sensing of the Baltic ecosystem. Algorithms of this kind have already been developed by our team from data relating mainly to oceanic Case 1 waters (WC1) and have produced good results for these waters. But their application to Baltic waters, i.e., Case 2 waters, was not so successful. On the basis of empirical data for the Baltic Sea, we therefore derived new mathematical expressions for the spatial distribution of Baltic phytoplankton pigments. They are discussed in this series of articles. This first article presents a statistical model for determining the total concentration of chlorophyll a (i.e., the sum of chlorophylls a+pheo derived spectrophotometrically) at different depths in the Baltic Sea Ca(z) on the basis of its surface concentration Ca(0), which can be determined by remote sensing. This model accounts for the principal features of the vertical distributions of chlorophyll concentrations characteristic of the Baltic Sea. The model’s precision was verified empirically: it was found suitable for application in the efficient monitoring of the Baltic Sea. The modified mathematical descriptions of the concentrations of accessory pigments (photosynthetic and photoprotecting) in Baltic phytoplankton and selected relationships between them are given in the other two articles in this series (Majchrowski et al. 2007, Woźniak et al. 2007b, both in this volume).
Źródło:
Oceanologia; 2007, 49, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development and dynamics of a coastal sub-surface phytoplankton bloom in the Southwest Kattegat, Baltic Sea
Autorzy:
Lund-Hansen, L.C.
Powiązania:
https://bibliotekanauki.pl/articles/48742.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
chlorophyll a
dymanics
Kattegat
subsurface phytoplankton
concentration
development
bloom
Baltic Sea
phytoplankton
Opis:
The study was based on CTD-casts performed on 5 consecutive days at 7 positions along a shallow- to deep-water transect during the spring bloom in the southwest Kattegat. The development, dynamics and fate of the sub-surface chlorophyll maximum (SCM) are described. The SCM developed at a constant rate of 1.4 mg chl a m−3 d−1, which is equal to a carbon fixation rate of 49.0 mgC m−3 d−1. The SCM developed at 6 m depth at low irradiance levels (10–43.0 μE m−2 s−1). Chl a concentrations reached up to 23 mg chl a m−3 in the centre of the SCM. Growth rates in the SCM were estimated at 0.82 d−1. The water column was only weakly stratified, with nutrients in excess in the whole of the water column. The SCM was relocated vertically to depths below the photic zone by wind-induced advection between the bay and the outer Kattegat. There were indications of a horizontal relocation of the SCM by an internal standing wave. Application of high spatial and temporal resolution made it possible to estimate key SCM parameters, such as growth rates [mg chl a m−3 d−1] and carbon fixation rate [mgC m−3 d−1], on the basis of chl a variations in time and space.
Źródło:
Oceanologia; 2006, 48, 3
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Production of transparent exopolymer particles (TEP) in the nitrogen fixing cyanobacterium Anabaena flos-aquae OL-K10
Autorzy:
Surosz, W.
Palinska, K.A.
Rutkowska, A.
Powiązania:
https://bibliotekanauki.pl/articles/47820.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
chlorophyll a
transparent exopolymer particle
concentration
Anabaena flos-aquae
nitrogen-fixing phytoplankton
Opis:
The aim of the study was to measure the transparent exopolymer particles (TEP) concentration in cultures of Anabaena flos-aquae OL-K10 and to determine the relationship between the quantity of particles produced and the light intensity, the age of the culture and the presence of nitrogen in the culture medium. This is the first time TEP production has been investigated in the Nostocales, an order of nitrogen-fixing phytoplankton species. The results showed that TEP production depends on the presence of nitrogen in the culture medium. The longer the culture is grown, the higher the correlation between its TEP content and its chlorophyll a concentration.
Źródło:
Oceanologia; 2006, 48, 3
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Average nutrient and chlorophyll distributions in the Western Mediterranean: RADMED project
Autorzy:
Garcia-Martinez, M.C.
Vargaz-Yanez, M.
Moya, F.
Santiago, R.
Munoz, M.
Reul, A.
Ramirez, T.
Balbin, R.
Powiązania:
https://bibliotekanauki.pl/articles/48926.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
climate change
water column
nutrient concentration
nutrient transport
chlorophyll
Mediterranean Sea
RADMED project
Źródło:
Oceanologia; 2019, 61, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of coastal upwelling on chlorophyll a concentration in the surface water along the Polish coast of the Baltic Sea
Autorzy:
Krezel, A.
Szymanek, L.
Kozlowski, L.
Szymelfenig, M.
Powiązania:
https://bibliotekanauki.pl/articles/49088.pdf
Data publikacji:
2005
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
surface water
chlorophyll a
satellite remote sensing
concentration
coastal upwelling
Baltic Sea
Polish coast
Opis:
Space-time variations in chlorophyll a (Chl a) concentrations in the surface water of upwelling regions along the Polish coast of the Baltic Sea were analysed. Carried out between 1998 and 2002 in the warmer season (from April till October), the measurements were targeted mainly at the Hel upwelling. Satellite-derived sea surface temperature (AVHRR) and Chl a data (SeaWiFS) were used. Generally speaking, the Chl a concentration increased in the upwelling plume, except along the Hel Peninsula, where two scenarios took place: a reduction in Chl a concentration in spring and an increase in autumn.
Źródło:
Oceanologia; 2005, 47, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of non-photosynthetic pigments on the measured quantum yield of photosynthesis
Autorzy:
Ficek, D.
Majchrowski, R.
Ostrowska, M.
Wozniak, B.
Powiązania:
https://bibliotekanauki.pl/articles/47492.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
marine phytoplankton
pigment
quantum yield
chlorophyll a
phytoplankton pigment
bio-optical modelling
concentration
sea
water column
photosynthesis
Opis:
The aim of this work was to assess the effect of non-photosynthetic (photoprotecting) pigments on the measured quantum yield of photosynthesis in the sea. The energy absorbed by these pigments is not utilised during photosynthesis. As a result, the measured yield of this process, i.e. the photosynthetic yield referred to the total energy absorbed by all phytoplankton pigments, is less than the actual quantum yield of photosynthesis, i.e. the yield referred to the energy absorbed by photosynthetic pigments only. The model of the absorption properties of marine phytoplankton derived by the authors (see Woźniak et al. 2000, this volume) was employed to determine the relevant contributions of photosynthetic and non-photosynthetic pigments to the total energy absorbed by phytoplankton in different trophic types of seas and at different depths in the water column. On this basis the non-photosynthetic pigment absorption factor fa, which describes the relation between the true and measured quantum yields of photosynthesis, could be characterised. The analysis shows that fa varies in value from 0.33 to 1, and that it depends on the trophic type of sea and the depth in the water column. The values of this factor are usually highest in eutrophic waters and decrease as waters become progressively more oligotrophic. It is also characteristic of fa that it increases with increasing depth in the sea.
Źródło:
Oceanologia; 2000, 42, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 18

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies