Phytoplankton community of the drinking water supply reservoir Borovitsa (South Bulgaria) with an emphasis on cyanotoxins and water quality

Teneva, Ivanka; Mladenov, Rumen; Belkinova, Detelina; Dimitrova-Dyulgerova, Ivanka; Dzhambazov, Balik

doi:10.2478/s11535-010-0009-1

Cited by 22 publications

(15 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…showed strong seasonal relationships with temperature [28], and this genera provided important sources of organic carbon and nutrients for the summer food web [29]. This is a health concern in some cases, as Synechococcus blooms can produce harmful toxins [30][31][32]. Thus, we should strengthen the prevention and treatment of Cyanobacteria Synechococcus blooms in warmer seasons.…”

Section: Discussionmentioning

confidence: 99%

Dynamics of Bacterial Community Diversity and Structure in the Terminal Reservoir of the South-To-North Water Diversion Project in China

Jia

Liu

et al. 2018

Water

View full text Add to dashboard Cite

Abstract:The South-to-North Water Diversion Project (SNWDP) is the largest water transfer project in the world, and its purpose is to relax water constraints in a region facing severe water scarcity. Bacterial communities from these reservoirs are important to human health, and analyzing their diversity and structure is crucial to water safety. Here, we investigated the dynamics of bacterial communities and their relationship with environmental parameters in the terminal reservoir (Miyun Reservoir) of the Middle Route of the SNWDP by high-throughput sequencing technology. Our results showed that Firmicutes, Proteobacteria, Cyanobacteria and Bacterioidetes were the most abundant phyla in the water column, and the community composition fluctuated seasonally. Moreover, the detected diversity of the bacterial community composition provided novel insights into the ongoing biogeochemical processes. The temperature was positively correlated with the dominant bacteria, with other factors, including the total dissolved solids, total phosphorus, dissolved oxygen and total nitrogen, shaping the structure and distribution of the microbial community. Furthermore, the metagenome showed broad phylogenetic diversity, indicating that organisms were involved in multiple essential environmental processes. This work is important for building a database to understand how microbial communities change after water transfers.

show abstract

Section: Discussionmentioning

confidence: 99%

Dynamics of Bacterial Community Diversity and Structure in the Terminal Reservoir of the South-To-North Water Diversion Project in China

Jia

Liu

et al. 2018

Water

View full text Add to dashboard Cite

show abstract

“…2). According to Pavlova et al (2006Pavlova et al ( , 2007Pavlova et al ( , 2013aPavlova et al ( , 2014, Pavlova (2007) and Georgieva et al (2015) (Pavlova, 2007;Pavlova et al, 2007) and LA type was reported once from Borovitsa by Teneva et al (2010b).…”

Section: Environmental Gradients and Cyanoprokaryotes Distributionmentioning

confidence: 97%

“…This study compiles and evaluates the currently available data on phytoplankton and relevant environmental data on Bulgarian WBs (mainly reservoirs and lakes) gathered during the period 2000-2015 (Stoyneva, 2003(Stoyneva, , 2010(Stoyneva, , 2014(Stoyneva, , 2015Beshkova and Botev, 2004;Kalchev et al, 2004;Traykov, 2005;Pavlova et al, 2006Pavlova et al, , 2013aPavlova et al, , 2014Pavlova et al, , 2015Beshkova et al, 2008aBeshkova et al, , 2008bBeshkova et al, , 2012Pavlova, 2007;Tsanev and Belkinova, 2008;Teneva et al, 2009Teneva et al, , 2010aTeneva et al, , 2010bTeneva et al, , 2011Teneva et al, , 2014Cheshmedjiev et al, 2010aCheshmedjiev et al, , 2013Stoyanov et al, 2012Stoyanov et al, , 2013Stoyanov et al, , 2016Stoyanov, 2014Stoyneva et al, 2013Belkinova et al, 2014;Dimitrova et al, 2014aDimitrova et al, , 2014bDochin andStoyneva, 2014, 2015;Dochin, 2015;Georgieva et al, 2015).…”

Section: Data Collection On Planktonic Cyanoprokaryotesmentioning

confidence: 99%

“…The assessment of cyanotoxins registered in the country in relation to their potential producers is based on the works of Pavlova (2007), Pavlova et al (2006Pavlova et al ( , 2007Pavlova et al ( , 2013aPavlova et al ( , 2014Pavlova et al ( , 2015, Teneva et al (2009Teneva et al ( , 2010aTeneva et al ( , 2010bTeneva et al ( , 2011Teneva et al ( , 2014, Stoyanov et al (2012) and Georgieva et al (2015) -Tabs. 2 and 3.…”

Section: Collection and Assessment Of Cyanotoxin Data Algal Blooms Amentioning

confidence: 99%

See 1 more Smart Citation

Assessment of cyanoprokaryote blooms and of cyanotoxins in Bulgaria in a 15-years period (2000-2015)

et al. 2017

View full text Add to dashboard Cite

The scientific and public awareness of hazardous photosynthetic prokaryotes (cyanobacteria/cyanoprokaryotes) and especially the contamination of drinking-water reservoirs with cyanotoxins is world-wide increasing. Recently much more attention has been paid to the events and results of mass proliferation of these toxic organisms even in South-East European countries in spite of the fact that, as a rule, they are not controlled by national legislation.The present paper presents a summary of results of such studies carried out in summer-autumn periods of the last 15 years (2000-2015) in Bulgarian water bodies differing by location, morphometry and trophic status, incl. drinking water reservoirs, recreational lakes and sites of nature conservation importance. A multivariate analysis allowed to outline the distribution patterns and environmental drivers of the planktonic cyanoprokaryote assemblages in relation with the available data on the water bodies, highlighting species composition and abundance of the main taxa, including potentially toxic species. Samples analysis by HPLC-DAD and/or LC/MS, ELISA and in vitro cytotoxicity tests allowed detection of microcystins, nodularins and saxitoxins. Toxin concentration ranged between 0.1 and 26.5 µg L-1 in water samples and between 10.9 and 1070 µg g-1 (d.w.) in concentrated (net) samples. Despite the fact that microcystins were not found in all studied water bodies and that the recorded levels were still lower in comparison with some other European countries, the fact that cyanotoxins were detected in 16 water bodies (incl. 3 drinking water reservoirs) could serve as an alert for the need of recognition of cyanotoxins as a new health risk factor in the country. Therefore, permanent monitoring with identification of toxins in water bodies at risk and activities for limitation and control of toxic blooms are urgently needed, in combination with increase of the attention to the effects of cyanotoxins on both human health and health of aquatic ecosystems in Bulgaria.

show abstract

“…This situation agrees with results of Ömerli Dam (Albay & Akçalan, 2003). Additionally, Teneva, Belkinova, Dimitrova-Dylgerova, Vlaknova & Mladenov, 2010a;Teneva, Mladenov, Belkinova, Dimitrova-Dylgerova &Dzhambazov, 2010b andDimitrova, Nenova, Uzunov, Shishinova &Stoyneva, 2014 showed that in Bulgaria (Borovitsa Vacha and Vaya reservoirs), a neighboring country with similar climatic conditions, and cyanoprokariotic blooms in September were always dominated by the genus Microcystis. M. aeruginosa was also found in several studied reservoirs in Turkey such as Hasan Uğurlu, Kemer, Çamlıdere, Derbent, Hirfanlı, Ömerli and Kadıköy Reservoirs (Fakıoğlu et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

Untitled

Öterler¹,

Elipek²,

Arat³

2018

Turk. J. Fish. Aquat. Sci.

View full text Add to dashboard Cite

Freshwater resources are some of the most important basic needs necessary for usage by people, especially for drinking water. Reservoirs that are built to store freshwater resources and access water on demand, may be prone to get more environmental effects than natural resources. Phytoplankton, which is the first level of in primary production, is specifically affected by environmental changes in different ways. This study investigated the algal flora of Süloğlu Reservoir (Edirne, Turkey) which is utilized as a freshwater reserve, as well as environmental variables influential on its community structure. For this reason a sampling campaign was performed in three stations selected in the reservoir in 3 different depths between January 2013 and November 2013. The study found 111 phytoplanktonic algae taxa belong to the divisions of Chlorophyta, Bacillariphyta, Cyanobacteria, Euglenophyta, Charophyta Miozoa and Ochrophyta. Chlorophyta members were generally dominant, and some environmental factors (i.e. light, pH values, temperature) were significantly effective on the distribution of all algal communities. The Shannon diversity values changed in the range of 1.02-2.75. CCA analysis results showed that there was a noticeable relationship between water quality parameters (chlorophyll-a, pH and water temperature) and timebased changes in dominant phytoplankton species. Moreover, recommendations were provided for sustainable usage of the reservoir whose trophic level was determined.

show abstract

Phytoplankton community of the drinking water supply reservoir Borovitsa (South Bulgaria) with an emphasis on cyanotoxins and water quality

Cited by 22 publications

References 21 publications

Dynamics of Bacterial Community Diversity and Structure in the Terminal Reservoir of the South-To-North Water Diversion Project in China

Dynamics of Bacterial Community Diversity and Structure in the Terminal Reservoir of the South-To-North Water Diversion Project in China

Assessment of cyanoprokaryote blooms and of cyanotoxins in Bulgaria in a 15-years period (2000-2015)

Untitled

Contact Info

Product

Resources

About