Protected freshwater ecosystem with incessant cyanobacterial blooming awaiting a resolution

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Tokodi, N.; Drobac Backović, D.; Lujić, J.; Šćekić, I.; Simić, S.; Đorđević, N.; Dulić, T.; Miljanović, B.; Kitanović, N.; Marinović, Z.; Savela, H.; Meriluoto, J.; Svirčev, Z. Protected Freshwater Ecosystem with Incessant Cyanobacterial Blooming Awaiting a Resolution. Water 2020, 12, 129. https://doi.org/10.3390/w12010129

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Title: Protected freshwater ecosystem with incessant cyanobacterial blooming awaiting a resolution
Author: Tokodi, Nada; Backovic, Damjana Drobac; Luji, Jelena; Šcekic, Ilija; Simic, Snežana; Đorđevic, Nevena; Dulic, Tamara; Miljanovic, Branko; Kitanovic, Nevena; Marinovic, Zoran; Savela, Henna; Meriluoto, Jussi; Svircev, Zorica
Publisher: MDPI
Date: 2020
Language: en
Belongs to series: Water 12 1 (2020)
ISSN: 2073-4441
DOI: https://doi.org/10.3390/w12010129
URI: http://hdl.handle.net/10138/335970
Abstract: For 50 years persistent cyanobacterial blooms have been observed in Lake Ludoš (Serbia), a wetland area of international significance listed as a Ramsar site. Cyanobacteria and cyanotoxins can affect many organisms, including valuable flora and fauna, such as rare and endangered bird species living or visiting the lake. The aim was to carry out monitoring, estimate the current status of the lake, and discuss potential resolutions. Results obtained showed: (a) the poor chemical state of the lake; (b) the presence of potentially toxic (genera Dolichospermum, Microcystis, Planktothrix, Chroococcus, Oscillatoria, Woronichinia and dominant species Limnothrix redekei and Pseudanabaena limnetica) and invasive cyanobacterial species Raphidiopsis raciborskii; (c) the detection of microcystin (MC) and saxitoxin (STX) coding genes in biomass samples; (d) the detection of several microcystin variants (MC-LR, MC-dmLR, MC-RR, MC-dmRR, MC-LF) in water samples; (e) histopathological alterations in fish liver, kidney and gills. The potential health risk to all organisms in the ecosystem and the ecosystem itself is thus still real and present. Although there is still no resolution in sight, urgent remediation measures are needed to alleviate the incessant cyanobacterial problem in Lake Ludoš to break this ecosystem out of the perpetual state of limbo in which it has been trapped for quite some time.
Subject: cyanobacteria
blooms
microcystin
Lake Ludos
protected
protection
freshwater
ecosystem
incessant
incessant cyanobacterial blooming
cyanobacterial problem
resolution
wetland
Ramsar site
cyanotoxins
saxitoxin
rare bird species
endangered bird species
birds
monitoring
chemical state
water samples
biomass samples
histopathological alterations
fish
health risk
Dolichospermum
Microcystis
Planktothrix
Chroococcus
Oscillatoria
Woronichinia
Limnothrix redekei
Pseudanabaena limnetica
Raphidiopsis raciborskii
Lake Ludoš
Ludoš
Serbia
Subject (ysa): syanobakteerit
kukinnat
mikrosystiini
Ludos-järvi
suojeltu
suojelu
luonnonsuojelu
makea vesi
ekosysteemit (ekologia)
leväongelma
sinileväongelma
ratkaisu
kosteikot
syanotoksiini
saxitoksiini
linnut
harvinaiset linnut
uhanalaiset linnut
seuranta
kemiallinen tila
vesinäytteet
biomassanäytteet
kudospatologinen tutkimus
kalat
terveysriskit
Rights: This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).


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