Database.use.hdl: https://hdl.handle.net/20.500.14172/20326
Now showing 1 - 3 of 3
  • research article;
    Sinkevičienė, Zofija
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    ; ; ; ;
    Estuarine, coastal and shelf science. London : Academic Press, 2019, vol. 216., p. 128-138
    Aquatic macrophytes play an important role in the structure and functioning of lagoon ecosystems. We assessed the importance of biotic and abiotic environmental factors in controlling spatial patterns of charophyte occurrence and coverage in the Curonian Lagoon. The relationships among five charophyte species, abiotic and biotic environmental factors were assessed using canonical correspondence analysis and multivariate regression trees. Salinity and wave exposure were the most important environmental factors explaining the occurrence and coverage of charophytes species in the estuarine part of the lagoon. The salinity gradient restricted the occurrence of brackish water species (especially Chara baltica and Tolypella nidifica) and freshwater species (especially Nitellopsis obtusa). The occurrence and coverage of C. contraria and T. nidifica were positively associated with the wave exposure and related factors (the bottom slope and grain size of sediments). The cover of N. obtusa could be suppressed by shading and/or space limitation by dense stands of Potamogeton perfoliatus. Relatively low explained variation in the occurrence and coverage (respectively, 28 and 19%) of charophytes by environmental factors highlights the need for analysis of other important factors (e. g. chemical content of sediments, dynamics of propagule bank and herbivory), and better resolution in linking macrophyte community composition with environmental data.
    Scopus© Citations 13WOS© IF 2.333WOS© AIF 2.293Scopus© SNIP 1.115
  • conference paper
    Sokolov, Andrei
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    Chubarenko, Boris
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    2018 IEEE/OES Baltic International Symposium (BALTIC) : 12-15 June, 2018, Klaipeda, Lithuania. Piscataway : IEEE, 2018. ISBN 9781538644683., p. 1-6
    Storm winds with direction from western quarter have a negative impact on the shore of the Sambia Peninsula (South-Eastern Baltic). Cliffs and dunes are partly protected against erosion by different constructions including geotextile. Most of them are located at the northern shore of the Sambia Peninsula, namely, near Svetlogorsk and Pionerskiy towns. Consecutive, storm by storm, forcing destroys the protective constructions, geotextile pieces are spread over surrounding area and the debris of them pollute the sea. The aim of the study was to find out what winds produce the most significant threat for erosion and therefore form the initial conditions for transport of geotextile debris alongshore. Numerical simulations by SHYFEM model calibrated against the field data was used to analyze the structure of near shore hydrodynamics. It was supposed that a threat for coastal erosion is proportional to wind and wave induced sea level run-up and speed of coastal currents. Simulations showed that winds of the northwest and even western directions could potentially cause the maximum erosion at the northern shore of the Sambia Peninsula. These winds may lead to the sea level rise up to 0.3-0.5 m and speed of currents up to 0.7-0.8 m/s and more (at winds of 20 m/s).
  • research article;
    Journal of coastal research. Lawrence : Coastal Education and Research Foundation, 2011, vol. 1, special iss. 64., p. 220-224
    The Lithuanian coast of the south eastern Baltic Sea represents a generic type of more or less straight, high-energy coast. The area is vulnerable to changes in hydrological conditions. This paper investigates the influence of wind wave climate change between 1961 and 2009 on coastal processes in the eastern Baltic Sea, with particular focus on Lithuania. Toward the end of the 20th century more intensive erosion in the investigated coastal area was not accompanied by changes in the wind speed or wave intensity (wave height). However, significant changes in wind direction were observed. Modern prevailing wind directions have led to enhanced occurrence of south west waves. which can be interpreted as one of the causes of the changes in the sediment transport regime at study area.
      1WOS© IF 0.766WOS© AIF 2.342Scopus© SNIP 1.158