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Cyanobacteria, cyanotoxins, and their histopathological effects on fish tissues in Fehérvárcsurgó reservoir, Hungary

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...

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Autores principales: Drobac Backović, Damjana, Tokodi, Nada, Marinović, Zoran, Lujić, Jelena, Dulić, Tamara, Simić, Snežana B., Đorđević, Nevena B., Kitanović, Nevena, Šćekić, Ilija, Urbányi, Béla, Meriluoto, Jussi, Svirčev, Zorica
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer International Publishing 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8346436/
https://www.ncbi.nlm.nih.gov/pubmed/34357469
http://dx.doi.org/10.1007/s10661-021-09324-3
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author Drobac Backović, Damjana
Tokodi, Nada
Marinović, Zoran
Lujić, Jelena
Dulić, Tamara
Simić, Snežana B.
Đorđević, Nevena B.
Kitanović, Nevena
Šćekić, Ilija
Urbányi, Béla
Meriluoto, Jussi
Svirčev, Zorica
author_facet Drobac Backović, Damjana
Tokodi, Nada
Marinović, Zoran
Lujić, Jelena
Dulić, Tamara
Simić, Snežana B.
Đorđević, Nevena B.
Kitanović, Nevena
Šćekić, Ilija
Urbányi, Béla
Meriluoto, Jussi
Svirčev, Zorica
author_sort Drobac Backović, Damjana
collection PubMed
description 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.
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spelling pubmed-83464362021-08-20 Cyanobacteria, cyanotoxins, and their histopathological effects on fish tissues in Fehérvárcsurgó reservoir, Hungary Drobac Backović, Damjana Tokodi, Nada Marinović, Zoran Lujić, Jelena Dulić, Tamara Simić, Snežana B. Đorđević, Nevena B. Kitanović, Nevena Šćekić, Ilija Urbányi, Béla Meriluoto, Jussi Svirčev, Zorica Environ Monit Assess Article 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. Springer International Publishing 2021-08-06 2021 /pmc/articles/PMC8346436/ /pubmed/34357469 http://dx.doi.org/10.1007/s10661-021-09324-3 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Drobac Backović, Damjana
Tokodi, Nada
Marinović, Zoran
Lujić, Jelena
Dulić, Tamara
Simić, Snežana B.
Đorđević, Nevena B.
Kitanović, Nevena
Šćekić, Ilija
Urbányi, Béla
Meriluoto, Jussi
Svirčev, Zorica
Cyanobacteria, cyanotoxins, and their histopathological effects on fish tissues in Fehérvárcsurgó reservoir, Hungary
title Cyanobacteria, cyanotoxins, and their histopathological effects on fish tissues in Fehérvárcsurgó reservoir, Hungary
title_full Cyanobacteria, cyanotoxins, and their histopathological effects on fish tissues in Fehérvárcsurgó reservoir, Hungary
title_fullStr Cyanobacteria, cyanotoxins, and their histopathological effects on fish tissues in Fehérvárcsurgó reservoir, Hungary
title_full_unstemmed Cyanobacteria, cyanotoxins, and their histopathological effects on fish tissues in Fehérvárcsurgó reservoir, Hungary
title_short Cyanobacteria, cyanotoxins, and their histopathological effects on fish tissues in Fehérvárcsurgó reservoir, Hungary
title_sort cyanobacteria, cyanotoxins, and their histopathological effects on fish tissues in fehérvárcsurgó reservoir, hungary
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8346436/
https://www.ncbi.nlm.nih.gov/pubmed/34357469
http://dx.doi.org/10.1007/s10661-021-09324-3
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