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  1. Ecology and distribution patterns of Chara connivens (Charophyta, Characeae) on the Canary Islands – the first record from Fuerteventura

    Article • Oceanological and Hydrobiological Studies, December 2019, De Gruyter

    Dr Andrzej Stanisław Rybak

  2. Species of Ulva as indicators of salinity

    Article • Ecological Indicators, February 2018, Elsevier

    Dr Andrzej Stanisław Rybak

  3. The influence of abiotic factors on the bloom-forming alga Ulva flexuosa (Ulvaceae, Chlorophyta): possibilities for the control of the green tides in freshwater ecosystems

    Article • Environmental Biology of Fishes, November 2017, Springer Science + Business Media

    Dr Andrzej Stanisław Rybak

  4. Ulva may be used as a refuge and a source of food by freshwater snails.

    Article • Phycological Research, July 2016, Wiley

    Dr Andrzej Stanisław Rybak

  5. Ecological preferences of freshwater Ulva flexuosa (Ulvales; Ulvophyceae): development of macroalgal mats in a Tulce fishpond (Wielkopolska Region, Poland)

    Article • Oceanological and Hydrobiological Studies, March 2016, De Gruyter

    Dr Andrzej Stanisław Rybak

  6. Differentiation of inland Ulva flexuosa Wulfen (Ulvaceae, Chlorophyta) from Western Poland

    Article • Oceanological and Hydrobiological Studies, September 2015, De Gruyter

    Dr Andrzej Stanisław Rybak

  7. Herbarium of freshwater Ulva

    Article • Phytotaxa, June 2015, Magnolia Press

    Dr Andrzej Stanisław Rybak

  8. Ulva flexuosa(Ulvaceae, Chlorophyta) inhabiting inland aquatic ecosystems: molecular, morphological and ecological discrimination of subspecies

    Article • European Journal of Phycology, October 2014, Taylor & Francis

    Dr Andrzej Stanisław Rybak

  9. Morphological and ultrastructural studies on Ulva flexuosa subsp. pilifera (Chlorophyta) from Poland

    Article • Acta Societatis Botanicorum Poloniae, June 2013, Polish Botanical Society

    Dr Andrzej Stanisław Rybak

  10. The accumulation of metal (Co, Cr, Cu, Mn and Zn) in freshwater Ulva (Chlorophyta) and its habitat

    Article • Ecotoxicology, February 2013, Springer Science + Business Media

    Dr Andrzej Stanisław Rybak

  11. Ulva flexuosa subsp. pilifera (Chlorophyta, Ulvophyceae) from the Wielkopolska region (West Poland): a new observation on the ultrastructure of vegetative cells

    Article • Oceanological and Hydrobiological Studies, January 2013, De Gruyter Open Sp. z o.o.

    Dr Andrzej Stanisław Rybak

  12. Freshwater Ulva (Chlorophyta) as a bioaccumulator of selected heavy metals (Cd, Ni and Pb) and alkaline earth metals (Ca and Mg)

    Article • Chemosphere, November 2012, Elsevier

    Dr Andrzej Stanisław Rybak

  13. Abiotic factors affecting the development of Ulva sp. (Ulvophyceae; Chlorophyta) in freshwater ecosystems

    Article • Aquatic Ecology, July 2010, Springer Science + Business Media

    Dr Andrzej Stanisław Rybak

  14. The distribution of green algae species from the Ulva genera (syn. Enteromorpha; Chlorophyta) in Polish inland waters

    Article • Oceanological and Hydrobiological Studies, March 2009, De Gruyter

    Dr Andrzej Stanisław Rybak