Harmful effects of cyanobacterial blooms in Lake Ludaš (Serbia) on Carassius gibelio tissues

Authors

  • Nada Tokodi University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Trg Dositeja Obradovića 3, Novi Sad 21000, Serbia; Jagiellonian University, Faculty of Biochemistry, Biophysics and Biotechnology, Laboratory of Metabolomics, Gronostajowa 7, Krakow 30387, Poland
  • Damjana Drobac Backović University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Trg Dositeja Obradovića 3, Novi Sad 21000, Serbia
  • Zoran Marinović University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Trg Dositeja Obradovića 3, Novi Sad 21000, Serbia; Hungarian University of Agriculture and Life Sciences, Department of Aquaculture, Páter Károly u. 1, Gödöllő 2100, Hungary
  • Karolina Sunjog University of Belgrade, Institute for Multidisciplinary Research, Kneza Višeslava 1, Belgrade 11030, Serbia
  • Jovana Jovanović Marić University of Belgrade, Institute for Biological Research “Siniša Stanković”, Despota Stefana 142, Belgrade 11000, Serbia
  • Stoimir Kolarević University of Belgrade, Institute for Biological Research “Siniša Stanković”, Despota Stefana 142, Belgrade 11000, Serbia
  • Nevena Kitanović Hungarian University of Agriculture and Life Sciences, Department of Aquaculture, Páter Károly u. 1, Gödöllő 2100, Hungary
  • Branka Vuković-Gačić University of Belgrade, Faculty of Biology, Center for Genotoxicology and Ecogenotoxicology, Chair of Microbiology, Studenski Trg 16, Belgrade 11000, Serbia
  • Jelena Lujić Cornell University, Department of Biomedical Sciences, Center for Reproductive Genomics, Ithaca, NY, USA
  • Zorica Svirčev University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Trg Dositeja Obradovića 3, Novi Sad 21000, Serbia; Åbo Akademi University, Faculty of Science and Engineering, Biochemistry, Tykistökatu 6 A, Turku 20520, Finland

Keywords:

comet assay, cyanobacteria, cyanotoxins, fish, histopathology, micronucleus

Abstract

Lake Ludaš is a protected nature reserve in Serbia that has been the focus of scientific interest, due to perpetual water quality deterioration that has led to consistent cyanobacterial blooms for almost five decades. To describe the possible effects of cyanotoxins on fish (Carrasius gibelio) inhabiting Lake Ludaš, several examinations were performed in November of 2018, including: assessment of water quality (physical and chemical parameters, as well as water microbiology), and assessment of several tissues of C. gibelio (micronucleus test, comet assay, and histopathological analyses). The water quality of Lake Ludaš has been categorized as class III, indicating moderate pollution. Physical and chemical parameters from November of 2018 seemed to be within acceptable levels. Examined fish tissues showed signs of DNA damage (highest in the blood, followed by the liver and gills), and histological alterations (in the liver and gills). Although other xenobiotics can induce similar changes, cyanotoxins could be the most likely cause of the observed alterations in C. gibelio tissues. The present study demonstrates the need to monitor this important wetland of international significance, since the living organisms in Lake Ludaš are showing signs of environmental stress suggesting that the preservation and natural balance of this ecosystem could be in danger.

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Published

2023-09-02

How to Cite

Tokodi, N., Drobac Backović, D., Marinović, Z., Sunjog, K., Jovanović Marić, J., Kolarević, S., Kitanović, N., Vuković-Gačić, B., Lujić, J., & Svirčev, Z. (2023). Harmful effects of cyanobacterial blooms in Lake Ludaš (Serbia) on Carassius gibelio tissues. Biologia Serbica, 45(1). Retrieved from https://journal.pmf.uns.ac.rs/index.php/biologiaserbica/article/view/12

Issue

Vol. 45 No. 1 (2023): Biologia Serbica

Section

Original paper