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Wyświetlanie 1-15 z 191
Tytuł:
Periodicity and composition of summer phytoplankton in Ezcurra Inlet, Admiralty Bay, King Geojge Island, South Shetland Islands
Autorzy:
Kopczyńska, Elżbieta E.
Powiązania:
https://bibliotekanauki.pl/articles/2058053.pdf
Data publikacji:
1981
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctic
phytoplankton
periodicity
Źródło:
Polish Polar Research; 1981, 2, 3-4; 55-70
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of a sheltered euhaline area of the Southeastern Bay of Biscay to sustain bivalve production in terms of phytoplankton community composition
Autorzy:
Bilbao, J.
Muniz, O.
Rodriguez, J.G.
Revilla, M.
Laza-Matinez, A.
Seoane, S.
Powiązania:
https://bibliotekanauki.pl/articles/2078991.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
phytoplankton community
phytoplankton composition
biomass
physicochemical variation
aquaculture
mussel
Biscay Bay
Opis:
This study describes the phytoplankton community in sheltered euhaline waters of the Basque coast (southeastern Bay of Biscay). Phytoplankton composition, cell size, abundance, biomass and the presence of potentially toxic taxa, together with chlorophyll a, nutrients and hydrographic and optical conditions were measured, from August 2016 to August 2017, in the Mutriku port, with the main aim of assessing the suitability of the phytoplankton community as a food resource for bivalves. The water column in Mutriku showed the typical environmental conditions of Basque marine waters, with no significant nutrient enrichment caused by anthropogenic pressures. Haptophytes represented the greatest contribution to cell abundance (31—47%), and diatoms were the dominant group in terms of biomass (52—79%), which could favour mussel growth due to their high fatty acid content. In addition, the size structure of the phytoplankton community was suitable for mussel ingestion, since the predominant cell size was 2—20 μm. Regarding toxic phytoplankton, the genera that pose a risk for human health and those that affect negatively mussel physiology and survival were considered. Altogether, ten toxic phytoplankton taxa were identified, contributing in less than 5% to the total cell abundance of Mutriku. However, median chlorophyll a concentration was low (0.5 μg L−1), reflecting the oligotrophic conditions of the area. Therefore, even if the composition of the phytoplankton community could be favourable for bivalve aquaculture, biomass values are low compared to other zones of bivalve production.
Źródło:
Oceanologia; 2021, 63, 1; 12-26
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phytoplankton and suspensions in relation to the freshwater in Arctic coastal marine ecosystems
Autorzy:
Wiktor, Józef
Węsławski, Jan Marcin
Wieczorek, Piotr
Zajączkowski, Marek
Okolodkov, Yuri B.
Powiązania:
https://bibliotekanauki.pl/articles/2052462.pdf
Data publikacji:
1998
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Arctic
brackish waters
phytoplankton
Źródło:
Polish Polar Research; 1998, 19, 3-4; 219-234
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
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:
Luminescence and photosynthesis of marine phytoplankton - a brief presentation of new results
Autorzy:
Wozniak, B.
Dera, J.
Powiązania:
https://bibliotekanauki.pl/articles/47916.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
marine phytoplankton
pigment
luminescence
chlorophyll a
photosynthetic pigment
interaction
phytoplankton
light absorption
photosynthesis
Opis:
This volume contains a set of eight papers presenting the results of the latest research into the interaction of light with marine phytoplankton by teams from the Marine Physics Department at the IO PAS in Sopot, and the Department of Environmental Physics at the Pedagogical University of Słupsk. These results were presented at the ‘Second Workshop on Luminescence and Photosynthesis of Marine Phytoplankton’ (Sopot–Paraszyno, 11–15 October 1999) sponsored by the Polish State Committee for Scientific Research. This introductory article discusses the most important assumptions and objectives of the research, and outlines the latest results. These are subsequently discussed in detail in the following papers: (1) Majchrowski & Ostrowska, Influence of photo- and chromatic acclimation on pigment composition in the sea, (2) Woźniak et al., Model of the ‘in vivo’ spectral absorption of algal pigments. Part 1. Mathematical apparatus, (3) Majchrowski et al., Model of the ‘in vivo’ spectral absorption of algal pigments. Part 2. Practical applications of the model, (4)Ostrowska et al., Variability of the specific fluorescence of chlorophyll in the ocean. Part 1. Theory of classical ‘in situ’ chlorophyll fluorometry, (5) Ostrowska et al., Variability of the specific fluorescence of chlorophyll in the ocean. Part 2. Fluorometric method of chlorophyll a determination, (6) Ficek et al., Influence of non-photosynthetic pigments on the measured quantum yield of photosynthesis, (7) Ficek et al., Variability of the portion of functional PS2 reaction centres in the light of a fluorometric study. For the reader’s convenience, we append a list of the symbols denoting the physical quantities used in the texts. The nomenclature and denotations are in line with the conventions employed in the subject literature.
Źródło:
Oceanologia; 2000, 42, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Significant Review to Indian Limnology
Autorzy:
Gothwal, Rakesh
Powiązania:
https://bibliotekanauki.pl/articles/1193447.pdf
Data publikacji:
2021
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Ecology
Limnology
Phytoplankton
Zooplanktons
Opis:
The limnological research has explored an immense momentum throughout the world over previous few decades. It has evolved as an individual division of ecology and numerous fields of specialization in limnology are acknowledged such as physical limnology, chemical limnology, planktonology, paleolimnology and limnology of specific areas like desert, high altitudes, temperate region, tropical region etc. The Swift advances in the field of limnology have taken place particularly in European countries and North America. Eutrophication, community dynamics, planktonology and pollution is an actively engaged viewpoint of various laboratories in exploring inland water bodies. The current article is an endeavor to give a widespread analysis and furnish a broad review of literature associated with the initiation of limnology and work done in Indian sub-continent with one hundred seventy four quoted references.
Źródło:
World Scientific News; 2021, 157; 105-128
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phytoplankton abundance and distribiution in the southern Drake Passage and the Bransfield Strait in February—March 1981 (BIOMASS-FIBEX)
Autorzy:
Kopczyńska, Elżbieta E.
Ligowski, Ryszard
Powiązania:
https://bibliotekanauki.pl/articles/2057645.pdf
Data publikacji:
1982
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctic
FIBEX
phytoplankton
distribution
Źródło:
Polish Polar Research; 1982, 3, 3-4; 193-202
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phytoplankton composition and biomass distribution in the southern Drake Passage, the Bransfield Strait and the adjacent waters of the Weddell Sea in December 1983 — January 1984 (BIOMASS -SIBEX)
Autorzy:
Kopczyńska, Elżbieta E.
Ligowski, Ryszard
Powiązania:
https://bibliotekanauki.pl/articles/2057362.pdf
Data publikacji:
1985
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctic
SIBEX
net phytoplankton
distribution
Źródło:
Polish Polar Research; 1985, 6, 1-2; 65-77
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phytoplankton of the Olaf Prydz Bay (Indian Ocean, East Antarctica) in February 1969
Autorzy:
Ligowski, Ryszard
Powiązania:
https://bibliotekanauki.pl/articles/2057634.pdf
Data publikacji:
1983
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctic
Indian Ocean
algae
phytoplankton
Źródło:
Polish Polar Research; 1983, 4, 1-4; 21-32
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phytogenic food of Euphausia superba Dana caught in the southern Drake Passage and the Bransfield Strait, February—March 1981 (BIOMASS--FIBEX
Autorzy:
Ligowski, Ryszard
Powiązania:
https://bibliotekanauki.pl/articles/2057644.pdf
Data publikacji:
1982
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctic
Euphausia superba
food
phytoplankton
Źródło:
Polish Polar Research; 1982, 3, 3-4; 281-288
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distribution of microflagellates and diatoms in the sea-ice zone between Elephant Island and the South Orkney Islands (December 1988 - January 1989)
Autorzy:
Kopczyńska, Elżbieta
Powiązania:
https://bibliotekanauki.pl/articles/2052789.pdf
Data publikacji:
1991
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctic
phytoplankton
sea-ice zone
Źródło:
Polish Polar Research; 1991, 12, 4; 515-528
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Environmental conditions and phytoplankton standing crop near pack-ice in the Scotia Sea (December 1988 - January 1989)
Autorzy:
Lipski, Maciej
Powiązania:
https://bibliotekanauki.pl/articles/2052791.pdf
Data publikacji:
1991
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctica
phytoplankton
sea-ice zone
Źródło:
Polish Polar Research; 1991, 12, 4; 507-513
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phytoplankton Susceptibility Towards Toxic Heavy Metal Cadmium: Mechanism and Its Recent Updates
Autorzy:
Permana, Rega
Akbarsyah, Nora
Powiązania:
https://bibliotekanauki.pl/articles/1839870.pdf
Data publikacji:
2021
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Cadmium
Heavy Metals
Phytoplankton
Toxicity
Opis:
Environmental pollution particularly heavy metal pollution into aquatic ecosystem has led to multiple damage in almost all life forms. Cadmium is one of the priority pollutant listed by United States Environmental Protection Agency or US EPA that widely known to have an adverse effect to organisms as well as human health. One type of organism that is susceptible to the effects of metal pollution is phytoplankton. Phytoplankton is a group of microalgae that are easy to find and are primary producers in aquatic environments. Phytoplankton plays an important role in aquatic ecosystems because they serve as primary producers. They are representing the water total primary productivity and reinforcing the aquatic life on the higher food chain. Thus, any threats that endangered the population of phytoplankton can lead to trophical cascade or even worse, biodiversity loss. The exposure of cadmium in high concentration to phytoplankton can lead to various impact including cell damage and disruption, biosynthesis inhibition of photosynthetic pigment (e.g. chlorophyll and carotenoid), chlorphyll degradation or known as chlorosis, thylakoid membrane degradation, inhibition of cellular metabolism and cell division. It is important to study the impact of cadmium to phytoplankton in a cellular level to better understand what mechanism lies and to what extent that the cadmium will be transferred to higher trophical organism via bioaccumulation or biomagnification.
Źródło:
World News of Natural Sciences; 2021, 38; 83-97
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dirty Tricks in the Plankton: Diversity and Role of Marine Parasitic Protists
Autorzy:
Skovgaard, Alf
Powiązania:
https://bibliotekanauki.pl/articles/763561.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
Parasite, parasitoid, phytoplankton, plankton, zooplankton
Opis:
Parasitism is an immensely successful mode of nutrition and parasitic organisms are abundant in most ecosystems. This is also the case for marine planktonic ecosystems in which a large variety of parasitic species are known. Most of these parasites are protists and they infect a wide range of hosts from the marine plankton, ranging from other protists to larger planktonic invertebrates. Parasites often have morphologies and life cycles that are highly specialized as compared to their free-living relatives. However, this does not mean that parasites are necessarily odd or rare phenomena; on the contrary parasites constitute numerically and ecologically important components of the ecosystem. This review gives an overview of the existing knowledge on the diversity and occurrence of parasitic protists in the marine plankton and examines the available information on the potential effects and role of parasitism in this ecosystem. Importance is given to the fact that prevalence and impact of parasitic organisms in marine planktonic systems appear to be overwhelmingly understudied.
Źródło:
Acta Protozoologica; 2014, 53, 1
1689-0027
Pojawia się w:
Acta Protozoologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Contamination of Antarctic marine phytoplankton by chlorinated hydrocarbons (BIOMASS III)
Autorzy:
Łukowski, Aleksy B.
Ligowski, Ryszard
Powiązania:
https://bibliotekanauki.pl/articles/2053198.pdf
Data publikacji:
1988
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctica
phytoplankton
chlorinated hydrocarbons
BIOMASS III
Źródło:
Polish Polar Research; 1988, 9, 2-3; 399-408
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 191

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