Dr. Łukasz Wejnerowski

Dr. Łukasz Wejnerowski – Zooplankton Ecology Group Member

Position: assistant professor
Email: wejner@amu.edu.pl
Room: 1.28
Phone: +48 61 829 5748
Office hours: 10:00 - 12:00
Reserch Gate

Research Interests

    Interactions between filamentous cyanobacteria and filter-feeders, cyanobacteria isolation, and culture maintenance are the main points of my research interests. My culture collection counts a dozen strains of cyanobacteria of the following genera: Aphanizomenon, Cylindrospermopsis, Planktothrix. I investigate these strains for their morphology, physiology and resistance to various stressors.

Current study topics

  • Influence of Daphnia exudates on the morphology and growth of filamentous cyanobacteria under various abiotic and biotic conditions

  • Effects of filamentous cyanobacteria on the life history, filtration apparatus morphology and filtration efficiency in cladocerans

  • Toxicological screening of cyanobacterial strains held in Department of Hydrobiology at AMU

Research projects

Chosen publications


  • Wejnerowski Ł., Falfushynska H., Horyn P., Osypenko I., Kokociński M., Meriluoto J., Jurczak T., Poniedziałek B., Pniewski F., Rzymski P. In Vitro Toxicological Screening of Stable and Senescing Cultures of Aphanizomenon, Planktothrix, and Raphidiopsis. Toxins 12: 400 https://doi.org/10.3390/toxins12060400.

  • Wejnerowski Ł., Sikora-Koperska A., Dawidowicz P. Temperature elevation reduces the sensitivity of invasive cladoceran Daphnia lumholtzi to filamentous cyanobacterium Raphidiopsis raciborskii. Freshwater Biology 65: 935-946


  • 2018

  • Wejnerowski Ł., Rzymski P., Kokociński M., Meriluoto J. The structure and toxicity of winter cyanobacterial bloom in a eutrophic lake of the temperate zone. Ecotoxicology 27(6):752-760 https://doi.org/10.1007/s10646-018-1957-x.

  • Wejnerowski Ł., Cerbin S., Wojciechowicz M., Jurczak T., Glama M., Meriluoto J., Dziuba M. Effects of Daphnia exudates and sodium octyl sulphates on filament morphology and cell wall thickness of Aphanizomenon gracile (Nostocales), Cylindrospermopsis raciborskii (Nostocales) and Planktothrix agardhii (Oscillatoriales). European Journal of Phycology 53(3):280-289 https://doi.org/10.1080/09670262.2018.1442585.
  • 2017

  • Wejnerowski Ł., Cerbin S., Dziuba M. Setae thickening in Daphnia magna alleviates the food stress caused by the filamentous cyanobacteria. Aquatic Ecology 51(3):485-498 https://doi.org/10.1007/s10452-017-9631-6.

  • Wejnerowski Ł., Wojciechowicz M.K., Glama M., Olechnowicz J., Dziuba M., Cerbin S. Solitary terminal cells of Aphanizomenon gracile (Cyanobacteria, Nostocales) can divide and renew trichomes. Phycological Research 65(3):248-255 https://doi.org/10.1111/pre.12182.

  • Ntalli N., Michaelakis A., Eloh K., Papachristos D.P., Wejnerowski Ł., Caboni P., Cerbin S. Biocidal effect of (E)-anethole on the cyanobacterium Aphanizomenon gracile Lemmermann. Journal of Applied Phycology 29(3):1297-1305 https://doi.org/10.1007/s10811-016-0993-2.

  • Dziuba M.K., Cerbin S., Wejnerowski Ł. 2017. Is bigger better? A possibility for adaptation of Daphnia to filamentous cyanobacteria in the face of global warming. Hydrobiologia 798(1):105-118 https://doi.org/10.1007/s10750-015-2438-3.
  • 2016

  • Wejnerowski Ł., Cerbin S., Wojciechowicz M.K., Dziuba M.K. Differences in cell wall of thin and thick filaments of cyanobacterium Aphanizomenon gracile SAG 31.79 and their implications for different resistance to Daphnia grazing. Journal of Limnology 75(3):634-643 https://doi.org/10.4081/jlimnol.2016.1383.
  • 2015

  • Wejnerowski Ł., Cerbin S., Dziuba M.K. Thicker filaments of Aphanizomenon gracile are more harmful to Daphnia than thinner Cylindrospermopsis raciborskii. Zoological Studies 54:2 https://doi.org/10.1186/s40555-014-0084-5.
  • 2013

  • Cerbin S., Wejnerowski Ł., Dziuba M.K. Aphanizomenon gracile increases in width in the presence of Daphnia. A defence mechanism against grazing? Journal of Limnology 72(3):505-511 https://doi.org/10.4081/jlimnol.2013.e41.

  • Dziuba M.K., Cerbin S., Wejnerowski Ł. Cladocera and Copepoda of the Shallow Eutrophic Lake in Natura 2000 Area in Western Poland. Pakistan Journal of Zoology 45(3):653-659 Link to publication.


  • 2018 – to date

    Assistant Professor at the Department of Hydrobiology, Faculty of Biology at AMU

  • 2018

    PhD in ecology (Faculty of Biology at AMU)

  • 2012

    MSc in biology (Faculty of Biology at AMU)

  • 2010

    BSc in biology (Faculty of Biology at AMU)

Scientific internships

  • 02/2017 – 04/2017

    Department of Biosciences, Åbo Akademi University, Turku, Finland. “Advanced chromatographic (HPLC-DAD, HPLC-FL, LC-MS-MS) analyses for cyanobacterial toxins”.

  • 01/2015 – 03/2015

    Department of Hydrobiology, University of Warsaw, Poland. “The study of the effect of temperature and filamentous cyanobacteria on life history of small- and large-bodied Daphnia species”.

  • 01/2014 – 03/2014

    Department of Algology in Třeboň, Institute of Botany of the ASCR, Research Division Třeboň, Czech Republic. “Isolation of cyanobacteria from natural ecosystems and their cultivation in labororatory”.


  • Experimental Aquatic Ecology (AMU-PIE offer for the academic year 2019/2020)

  • Applied Aquatic Ecology (Module for Environmental Protection for the academic year 2019/2020)

Erasmus student projects

  • Aysu Kendir (2019) Thermal tolerance of filamentous cyanobacteria from geothermal habitats.

  • Maria Barondi (2019) Isolation, purification, and cultivation of cyanobacteria from glaciers of Greenland and Svalbard.

  • Tümer Orhun Aykut (2019/2020) Isolation, purification, and cultivation of filamentous cyanobacteria of the genus Aphanizomenon (Nostocales).

  • Özleyiş Yağmur Binay (2018) The effect of Daphnia chemical stimuli on the growth of filamentous cyanobacterium Aphanizomenon gracile.

  • Ilay Turgut (2018) The growth of cyanobacterium Aphanizomenon gracile at different concentrations of ammonium.