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- Title
Seasonal and spatial variations of sedimentary matter and diatom transport in the Klaipėda Strait (Eastern Baltic).
- Authors
Trimonis, Egidijus; Vaikutienė, Giedrė; Gulbinskas, Saulius
- Abstract
The exchange of sediment between the Baltic Sea and the Curonian Lagoon was studied in the Klaipeda Strait from 1994 to 2008 using special sediment traps. The examination of trap samples demonstrates that migrating sedimentary matter, i.e. the concentration and composition of sediment fluxes in the strait, varies widely. Seasonal and spatial variations of sediment fluxes directly depend upon the hydrometeorological situation. The most intensive vertical flux according to mean values is recorded in the port gate water area of the strait during spring and winter seasons and also in the western passage of the Curonian Lagoon in the autumn. The smallest sediment fluxes are determined in the Malkų Bay. Grain sizes of transported sediments vary from silty-clayey mud up to fine sand. The dominating sediment fraction is 0.05-0.01 mm. The grain size of sedimentary matter is associated with the intensity of sediment transport. The more intensive sediment fluxes transport much coarser matter, and when the intensity decreases the amount of finely dispersed matter relatively increases. Variation in numbers of marine, brackish, and freshwater diatom specimens reflects the relative mixing of Baltic Sea marine and Curonian Lagoon fresh water together with transported sediments in the strait.
- Subjects
KLAIPEDA (Lithuania); LITHUANIA; SEDIMENTS; DIATOMS; SPATIAL variation
- Publication
Baltica, 2010, Vol 23, Issue 2, p127
- ISSN
0067-3064
- Publication type
Article