Please use this identifier to cite or link to this item: https://scidar.kg.ac.rs/handle/123456789/13509
Title: Cyanobacteria, cyanotoxins, and their histopathological effects on fish tissues in Fehérvárcsurgó reservoir, Hungary
Authors: Drobac Backović D.
Tokodi, Nada
Marinovic, Zoran
Lujić J.
Dulić T.
Simić, Snežana
Đorđević, Nevena
Kitanović, Nevena
Šćekić I.
Urbányi B.
Meriluoto, Jussi
Svircev, Zorica
Issue Date: 2021
Abstract: Cyanobacteria are important members of lake plankton, but they have the ability to form blooms and produce cyanotoxins and thus cause a number of adverse effects. Freshwater ecosystems around the world have been investigated for the distribution of cyanobacteria and their toxins and the effects they have on the ecosystems. Similar research was performed on the Fehérvárcsurgó reservoir in Hungary during 2018. Cyanobacteria were present and blooming, and the highest abundance was recorded in July (2,822,000 cells/mL). The species present were Aphanizomenon flos-aquae, Microcystis flos-aquae, Microcystis wesenbergii, Cuspidothrix issatschenkoi, Dolichospermum flos-aquae, and Snowella litoralis. In July and September, the microcystin encoding gene mcyE and the saxitoxin encoding gene sxtG were amplified in the biomass samples. While a low concentration of microcystin-RR was found in one water sample from July, analyses of Abramis brama and Carassius gibelio caught from the reservoir did not show the presence of the investigated microcystins in the fish tissue. However, several histopathological changes, predominantly in gills and kidneys, were observed in the fish, and the damage was more severe during May and especially July, which coincides with the increase in cyanobacterial biomass during the summer months. Cyanobacteria may thus have adverse effects in this ecosystem.
URI: https://scidar.kg.ac.rs/handle/123456789/13509
Type: article
DOI: 10.1007/s10661-021-09324-3
ISSN: 0167-6369
SCOPUS: 2-s2.0-85112129191
Appears in Collections:Faculty of Science, Kragujevac

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