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Wyszukujesz frazę "Curonian Lagoon" wg kryterium: Temat


Wyświetlanie 1-11 z 11
Tytuł:
137Cs activity distribution in the Lithuanian coastal waters of the Baltic Sea
Autorzy:
Davuliene, L.
Tarasiuk, N.
Spirkauskaite, N.
Trinkunas, G.
Valkunas, L.
Powiązania:
https://bibliotekanauki.pl/articles/48708.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
hydrodynamic model
coastal water
activity
Curonian Lagoon
concentration
Baltic Sea
Lithuania
radiocaesium
distribution
Opis:
The main 137Cs accumulation zone in the study area was found to be located at depths below the 50-metre isobath, i.e. below the layer of hydrodynamic activity. In coastal waters not influenced by the fresh water discharge from the Curonian Lagoon, 137Cs occurs mostly in soluble form. The particulate 137Cs activity concentration in the marine area affected by Curonian Lagoon water can make up 10% of the total 137Cs activity concentration. The circulation model was developed to assess the distribution of artificial radionuclides in Lithuanian territorial waters. The model was validated on the basis of data acquired during the measurement campaign in the Lithuanian part of the Baltic Sea and the Curonian Lagoon in the years 1999–2001. The model enables the 137Cs activity concentration to be simulated as a passive admixture (error within c. 15%).
Źródło:
Oceanologia; 2007, 49, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Toxic cyanobacteria blooms in the Lithuanian part of the Curonian Lagoon
Autorzy:
Paldaviciene, A.
Mazur-Marzec, H.
Razinkovas, A.
Powiązania:
https://bibliotekanauki.pl/articles/48516.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
Baltic Sea
blue-green alga
Curonian Lagoon
Microcystis aeruginosa
Nodularia spumigena
Cyanoprokaryota
bloom
microcystin
Lithuania
nodularin
Opis:
The phenomenon of cyanobacteria (blue-green algae) blooms in the Baltic and the surrounding freshwater bodies has been known for several decades.The presence of cyanobacterial toxic metabolites in the Curonian Lagoon has been investigated and demonstrated for the first time in this work (2006–07). Microcystis aeruginosa was the most common and widely distributed species in the 2006 blooms. Nodularia spumigena was present in the northern part of the Curonian Lagoon, following the intrusion of brackish water from the Baltic Sea; this is the first time that this nodularin-(NOD)-producing cyanobacterium has been recorded in the lagoon.W ith the aid of high-performance liquid chromatography (HPLC), four microcystins (MC-LR, MC-RR, MC-LY, MC-YR) and nodularin were detected in 2006.T he presence of these cyanobacterial hepatotoxic cyclic peptides was additionally confirmed by enzyme-linked immunosorbent assay (ELISA) and protein phosphatase inhibition assay (PP1).Micr ocystin-LR, the most frequent of them, was present in every sample at quite high concentrations (from <0.1 to 134.2 μg dm−3).I n 2007, no cyanobacterial bloom was recorded and cyanotoxins were detected in only 4% of the investigated samples.A comparably high concentration of nodularin was detected in the northern part of the Curonian Lagoon.I n one sample dimethylated MC-RR was also detected (concentration 7.5 μg dm−3).
Źródło:
Oceanologia; 2009, 51, 2; 203-216
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Long term water level and surface temperature changes in the lagoons of the Southern and Eastern Baltic
Autorzy:
Dailidiene, I.
Baudler, H.
Chubarenko, B.
Navrotskaya, S.
Powiązania:
https://bibliotekanauki.pl/articles/47846.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
Baltic Sea
climate change
coastal lagoon
Curonian Lagoon
erosion
lagoon
linear regression
long-term variation
sea surface temperature
variability
Vistula Lagoon
water level
Źródło:
Oceanologia; 2011, 53, (1-TI)
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microorganisms associated with charophytes under different salinity conditions
Autorzy:
Katarzyte, M.
Vaiciute, D.
Bucas, M.
Gyraite, G.
Petkuviene, J.
Powiązania:
https://bibliotekanauki.pl/articles/48156.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
microorganism
aquatic macrophyte
salinity
charophyte
primary production
bacterial abundance
fungi
brackish water
fresh water
Curonian Lagoon
Baltic Sea
Opis:
Microorganisms associated with aquatic macrophytes can in various ways interact with a plant and influence its activity and vice versa. A low-salinity intrusion into freshwater environment can affect plant-microorganism interactions. In this study, effects of different salinity conditions on the abundance and community composition of associated microorganisms with charophytes in the Curonian Lagoon were assessed. From the results, we found that short term salinity changes affected the abundance of bacteria and fungi associated with charophytes, whereas no response was reflected in the taxa composition of fungi, showing that other factors could be of more importance. The increased fungi abundances and different fungi composition in August in comparison to June was probably related to senescence process of aquatic vegetation. 8 fungi taxa were isolated and identified in association with charophytes, while higher diversity was revealed by DGGE technique.
Źródło:
Oceanologia; 2017, 59, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distribution of metals and extent of contamination in sediments from the South-Eastern Baltic Sea (Lithuanian zone)
Autorzy:
Remeikaite-Nikiene, N.
Garnaga-Budre, G.
Lujaniene, G.
Joksas, K.
Stankevicius, A.
Malejevas, V.
Bariseviciute, R.
Powiązania:
https://bibliotekanauki.pl/articles/49066.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
metal distribution
surface sediment
pollution source
enrichment factor
geoaccumulation index
contamination factor
Baltic Sea
Lithuania
Curonian Lagoon
Źródło:
Oceanologia; 2018, 60, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
In situ measurements and satellite remote sensing of case 2 waters: first results from the Curonian Lagoon
Autorzy:
Giardino, C.
Bresciani, M.
Pilkaityte, R.
Bartoli, M.
Razinkovas, A.
Powiązania:
https://bibliotekanauki.pl/articles/48042.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
satellite remote sensing
satellite image
water
Curonian Lagoon
eutrophication
calibration
validation
eutrophic ecosystem
aquatic ecosystem
Baltic Sea
Opis:
In this study we present calibration/validation activities associated with satellite MERIS image processing and aimed at estimating chl a and CDOM in the Curonian Lagoon. Field data were used to validate the performances of two atmospheric correction algorithms, to build a band-ratio algorithm for chl a and to validate MERIS-derived maps. The neural network-based Case 2 Regional processor was found suitable for mapping CDOM; for chl a the band-ratio algorithm applied to image data corrected with the 6S code was found more appropriate. Maps were in agreement with in situ measurements. This study confirmed the importance of atmospheric correction to estimate water quality and demonstrated the usefulness of MERIS in investigating eutrophic aquatic ecosystems.
Źródło:
Oceanologia; 2010, 52, 2; 197-210
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
First report of endosymbionts in Dreissena polymorpha from the brackish Curonian Lagoon, SE Baltic Sea
Autorzy:
Chuseve, R.
Mastitski, S.E.
Zaiko, A.
Powiązania:
https://bibliotekanauki.pl/articles/48408.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
Dreissena polymorpha
zebra mussel
Conchophthirus acuminatus
parasitic ciliate
Ophryoglena
brackish water
endosymbiont
Curonian Lagoon
Baltic Sea
water salinity
water temperature
Źródło:
Oceanologia; 2012, 54, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morphology and distribution of phage-like particles in a eutrophic boreal lagoon
Autorzy:
Sulcius, S.
Staniulis, J.
Paskauskas, R.
Powiązania:
https://bibliotekanauki.pl/articles/47555.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
aquatic ecosystem
Baltic Sea
biodiversity
Curonian Lagoon
distribution
electron microscopy
morphology
pelagic ecosystem
spatial distribution
virus
virus-like particle
Opis:
In this paper we present the results of direct observations of the morphology and size of phage-like particles by means of transmission electron microscopy (TEM) as a function of their spatial distribution in the shallow highly productive Curonian Lagoon of the Baltic Sea. In total, 26 morphologically different forms of phagelike particles were found. Different trends of distribution in terms of abundance, size and shape of virus-like particles were demonstrated. The total abundance of viruses varied from 1.91×107 ml−1 to 5.06×107 ml−1. The virus to bacteria ratio (VBR) changed from 15.6 to 49 and was negatively associated with total bacterial numbers (r = −0.60; p < 0.05). The phages of family Myoviridae were the most diverse and were dominant at all stations.
Źródło:
Oceanologia; 2011, 53, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tolerance of Paramysis lacustris and Limnomysis benedeni (Crustacea, Mysida) to sudden salinity changes: implications for ballast water treatment
Autorzy:
Ovcarenko, I.
Audzijonyte, A.
Gasiunaite, Z.R.
Powiązania:
https://bibliotekanauki.pl/articles/48901.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
experiment
Curonian Lagoon
Ponto-Caspain mysid
mysid
Paramysis lacustris
Baltic Sea
Crustacea
Sopot
invasive species
conference
Mysida
Limnomysis benedeni
salinity tolerance
Opis:
In order to draw implications for ballast water management, we tested the tolerance of two Ponto-Caspian mysid species Paramysis lacustris and Limnomysis benedeni to sudden salinity changes. The naturally stenohaline P. lacustris was more susceptible to higher salinities; its mortality rate at 19 PSU was 60%, whereas exposure to 23 PSU was 100% lethal. The euryhaline L. benedeni survived in salinities of up to 19 PSU, but experienced 100% mortality at 34 PSU. The return of both mysid species to fresh water after the 24 h exposure to higher salinities did not prevent further mortality. Considering the rather high short-term salinity tolerance of both species, a salinity of at least 30 PSU should be used as an appropriate biocide.
Źródło:
Oceanologia; 2006, 48, S
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biogeochemical alteration of the benthic environment by the zebra mussel Dreissena polymorpha (Pallas)
Autorzy:
Zaiko, A.
Paskauskas, R.
Krevs, A.
Powiązania:
https://bibliotekanauki.pl/articles/47856.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
Baltic Sea
Curonian Lagoon
Dreissena polymorpha
benthic macroinvertebrate
biogeochemical alteration
ecosystem
mineralization
nitrogen
nutrient
oxygen consumption
phosphorus
sediment
shell
zebra mussel
Opis:
The aim of this study was to verify whether the biogeochemical features (e.g. concentration of nutrients, oxygen consumption, mineralization rate, Eh) of sediments changed by the zebra mussel or its shell deposits differ from those in the ambient soft bottom, and how these differences are related to the structure of benthic macroinvertebrates. In 2006 three sampling sessions were carried out in the Curonian Lagoon, SE Baltic Sea, at three pre-defined sites, corresponding to different bottom types: zebra mussel bed, zebra mussel shell deposits and bare soft sediments. Similarity analysis of biogeochemical parameters indicated that bottom sediments covered with zebra mussel shell deposits were rather distinct from the other bottom types because of the lowest total organic matter mineralization rate and highest organic carbon, total phosphorus and total nitrogen content. The parameters measured in the zebra mussel bed did not deviate conspicuously from the values observed in bare bottoms, except for the higher rate of oxygen consumption in the upper sediment layer. Unsuitable anoxic conditions on the one hand and the ‘attractive’ shelters provided by zebra mussels on the other hand may promote the epifaunal life style in the habitats formed by dense zebra mussel clumps.
Źródło:
Oceanologia; 2010, 52, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bioaccumulation of microcystins in invasive bivalves: A case study from the boreal lagoon ecosystem
Autorzy:
Paldaviciene, A.
Zaiko, A.
Mazur-Marzec, H.
Razinkovas-Baziukas, A.
Powiązania:
https://bibliotekanauki.pl/articles/47622.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
microcystin
mussel tissue
zebra mussel
bioaccumulation
bivalve
Dreissena polymorpha
brackish water
eutrophic water
Curonian Lagoon
Baltic Sea
environment condition
biomonitoring
protein phosphatase
ELISA test
Źródło:
Oceanologia; 2015, 57, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-11 z 11

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