Changes in the phytoplankton community and dominance of Cylindrospermopsis raciborskii (Wolosz.) Subba Raju in a temperate lowland river (Ponjavica, Serbia)

Karadžić, Vesna; Simić, Gordana Subakov; Natić, Dejan; Ržaničanin, Ana; Ćirić, Miloš; Gačić, Zoran

doi:10.1007/s10750-013-1460-6

Cited by 42 publications

(38 citation statements)

References 52 publications

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“…During 2008 and2009 in the Ponjavica river, MCs (concentrations given as MC-LR equivalents in ELISA) were detected in the water (up to 4.84 mg L -1 ), sediment (5.7 mg per 100 g), macrophytes (up to 5.0 mg per 100 g) and fish (up to 3.3 mg per 100 g), and the dominance of the invasive cyanobacterium Cyl. raciborskii was found (Karadžić, 2011;Natić, 2012;Karadžić et al, 2013). MCs may have contributed to the deaths of animals, however, the exact cause of death has not been determined.…”

Section: Riversmentioning

confidence: 99%

Review of 130 years of research on cyanobacteria in aquatic ecosystems in Serbia presented in a Serbian Cyanobacterial Database

2017

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The presence of toxic cyanobacteria in aquatic ecosystems in the territory of the Republic of Serbia was surveyed over a period of several decades. Increasing attention is being paid to some negative consequences that may be caused by these microorganisms. Information from available literary sources regarding the distribution and frequency of cyanobacteria and their toxins over a period of 130 years, together with the effects on humans and wildlife in aquatic ecosystems, were gathered and incorporated into a Serbian Cyanobacterial Database created for the CYANOCOST Action. This database encompasses information on 65 aquatic ecosystems, including rivers, lakes, ponds, canals, irrigation reservoirs, reservoirs used for drinking water supply and reservoirs used for other purposes. Cyanobacterial blooms were found in almost 80% of the investigated aquatic ecosystems. The analysis of the research showed the presence of more than 70 species, including blooms of 24 species from 13 genera. Five species of cyanobacteria: Microcystis aeruginosa, Aphanizomenon flos-aquae, Planktothrix agardhii, Microcystis flos-aquae and Planktothrix rubescens frequently formed blooms in the investigated waterbodies and cyanotoxins were also detected in some of them, which had certain negative effects. Here, we present an overview of data contained in the Serbian Cyanobacterial Database, concerning cyanobacterial distribution, cyanotoxin production and associated biological effects in different types of water bodies from the Republic of Serbia. Also, recent important and major cases of cyanobacterial blooming in reservoirs used for drinking water supply: at Vrutci and Ćelije, the Aleksandrovac irrigation reservoir, the Ponjavica River and Lake Palić, including systematic research on the Lake Ludoš and few fishponds are further described. It can be concluded that cyanobacteria and cyanotoxins are omnipresent in different water bodies throughout the Republic of Serbia. For these reasons it is imperative to continue with the monitoring of cyanobacteria and cyanotoxins, as well as to continuously supplement the established database with new information. The Serbian Cyanobacterial Database represents a treasury of information on cyanobacteria and their toxins, and as a model for other countries in the region and beyond.

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Section: Riversmentioning

confidence: 99%

Review of 130 years of research on cyanobacteria in aquatic ecosystems in Serbia presented in a Serbian Cyanobacterial Database

2017

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“…In Serbia, S. aphanizomenoides was first recorded during the study of the phytoplankton community of the Ponjavica River (Karadžić et al 2013). This finding has expanded the known geographic distribution of this invasive species, especially regarding rivers, as it has so far been found in many waterbodies of Europe, but the only other record in rivers was from the Danube River in Romania (Caraus 2002).…”

Section: Introductionmentioning

confidence: 83%

Morphological and ecological characteristics of potentially toxic invasive cyanobacterium Sphaerospermopsis aphanizomenoides (Forti) Zapomelová, Jezberová, Hrouzek, Hisem, Reháková & Komárková (Nostocales, Cyanobacteria) in Serbia

et al. 2015

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This study investigates the morphology and occurrence of the potentially toxic invasive cyanobacterium recently detected in Serbia, Sphaerospermopsis aphanizomenoides (Forti) (Zapomelová et al. 2010), in correlation with several environmental parameters. The presence of this species was recorded during warm months in three of four studied sites in the Ponjavica River. It was found in a community with invasive Cylindrospermopsis raciborskii (Woloszynska) (Seenayya and Subba Raju 1972) and Raphidiopsis mediterranea (Skuja 1937) in this small, shallow, eutrophic river, with slow water flow. The peak of its abundance was observed in August 2008(3.36 9 10 6 cell/ml). The proliferation of this cyanobacterium was caused by very high water temperatures at the beginning of the summer, which resulted in an increase in the biomass of this species in August. The blooms of S. aphanizomenoides often occur under nitrogen depletion due to the formation of heterocysts, but in our study, their number was in positive correlation with the concentration of total dissolved nitrogen at the end of the study period. However, PCA analysis, which included the whole study period, indicated that there is a negative correlation between these two parameters. According to this analysis, in this locality, the factors which control the formation of the akinetes of S. aphanizomenoides are both the concentration of phosphate in the water and temperature. The morphological characteristics (trichome length, dimensions of the vegetative cells, heterocysts and akinetes, and their position) of this species, first recorded in Serbia, were mainly in correlation with those from the Czech Republic. However, individuals of S. aphanizomenoides from Serbia have shown a greater range of morphological variability than previously recorded.

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“…Abundant proliferations of cyanobacteria have been observed in many water bodies on all continents as a consequence of increasing eutrophication (Whitton, Potts 2000;Karadžić et al 2013). Toxic cyanobacteria are one of the major causes of problems with water quality in reservoirs, because cyanobacterial blooms have become a serious environmental threat to drinking water safety (Paul 2008).…”

Section: Cylindrospermopsis Raciborskii Dominancementioning

confidence: 99%

Temporal pattern prevails over spatial variability in phytoplankton communities from a subtropical water supply reservoir

Yang

Liu

2013

Oceanological and Hydrobiological Studies

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Phytoplankton species are dominant components in reservoir ecosystems, yet little is known about their variability and dynamics, especially along the depth continuum. This study examined vertical and horizontal differences in phytoplankton communities in a typical subtropical deep reservoir (i.e. Dongzhen Reservoir) from 2011 to 2012. Phytoplankton communities separated into four groups based on the biomass data, indicating that temporal differences in the community structure were greater than spatial differences. Autumn communities had the highest diversity measured by the ShannonWiener index (2.47±0.07), while summer communities had the lowest diversity (0.46±0.09). Both winter and spring communities were dominated by diatoms (90.4±1.7%), while cyanobacteria dominated in summer communities during our * Corresponding author address: Aquatic EcoHealth Group, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, P. R. China; e-mail: jyang@iue.ac.cn sampling period. In spring and summer, however, the three surface communities characterized by high biomass were most similar to each other, indicating that vertical variation was significantly higher than horizontal differences. Furthermore, Cylindrospermopsis raciborskii accounted for over 96% of the total phytoplankton biomass in the summer surface water. The redundancy analysis (RDA) illustrated that the temporal factor (summer), the spatial factor (depth), and nutrients (nitrite and nitrate nitrogen, ammonium nitrogen, phosphate phosphorus) were significant variables affecting the dynamics of phytoplankton communities. High temperature with stable thermal stratification might have been the cause of C. raciborskii dominance in Dongzhen Reservoir in summer. Regular and longterm monitoring of dominant species is urgently needed for water quality protection and sustainable reservoir management.

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Changes in the phytoplankton community and dominance of Cylindrospermopsis raciborskii (Wolosz.) Subba Raju in a temperate lowland river (Ponjavica, Serbia)

Cited by 42 publications

References 52 publications

Review of 130 years of research on cyanobacteria in aquatic ecosystems in Serbia presented in a Serbian Cyanobacterial Database

Review of 130 years of research on cyanobacteria in aquatic ecosystems in Serbia presented in a Serbian Cyanobacterial Database

Morphological and ecological characteristics of potentially toxic invasive cyanobacterium Sphaerospermopsis aphanizomenoides (Forti) Zapomelová, Jezberová, Hrouzek, Hisem, Reháková & Komárková (Nostocales, Cyanobacteria) in Serbia

Temporal pattern prevails over spatial variability in phytoplankton communities from a subtropical water supply reservoir

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