Issue 2/2018 (June 2018)
Spatial variability of long-term trends in significant wave height over the Gulf of Gdańsk using System Identification techniques
The significant wave height field over the Gulf of Gdańsk in the Baltic Sea is simulated back to the late 19th century using selected data-driven System Identification techniques (Takagi-Sugeno-Kang neuro-fuzzy system and non-linear optimization methods)
Size-fractionated chlorophyll a and phycocyanin temporal variations in a highly eutrophic lake and its isolated karstic springs
Monthly variations of size-fractionated chlorophyll a and phycocyanin were studied in Lake Pamvotis between August 2016 and January 2017. Sampling was conducted at two sampling sites: in the main lake (Site 1: Lake) and in
Reproduction of Potamothrix hammoniensis (Oligochaeta) in shallow eutrophic lakes
The aim of the study was to indicate the abiotic parameters of water and bottom sediments, which significantly affect the reproduction of Potamothrix hammoniensis in 9 shallow eutrophic lakes, of which 5 were dominated by
Reduction of nutrient emission from Polish territory into the Baltic Sea (1988–2014) confronted with real environmental needs and international requirements
Eutrophication of the Baltic Sea is considered a major threat to its ecological status. We present and discuss Polish riverine flow normalized loads of total nitrogen (TN) and total phosphorus (TP) discharged into the Baltic
Photosynthetic efficiency of endosymbiotic algae of Paramecium bursaria originating from locations with cold and warm climates
Paramecium bursaria (Ciliophora) is a cosmopolitan unicellular organism that plays a significant role in aquatic ecosystems. P. bursaria contains symbiotic algae and this association is a mutual symbiosis. The aim of the present study was
First record of Sigara assimilis (Fieber, 1848) (Hemiptera: Heteroptera: Corixidae) in Poland
Sigara assimilis (Fieber, 1848) is an aquatic true bug from the family Corixidae. Our paper is the first report on this species from Poland. Numerous males and females of the species were found in a