Changes in Phytoplankton and Water Quality during Sustainable Restoration of an Urban Lake Used for Recreation and Water Supply

Kozák, Anna; Gołdyn, Ryszard; Dondajewska, Renata; Kowalczewska‐Madura, Katarzyna; Holona, Tomasz

doi:10.3390/w9090713

Cited by 20 publications

(13 citation statements)

References 59 publications

(48 reference statements)

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“…The water quality in other urban lakes was monitored by Kang et al [ 18 ], who found that the highest TN in Fengqing lake was 6.5 mg/L, while the COD Mn was 13.12 mg/L. A similar study conducted by Kozak et al [ 29 ] showed a TN of 4 mg/L, NO 3 − -N of 1.9 mg/L and a TP of 0.08 mg/L in the urban Lake Głębokie, Poland. The nutrients in the urban lakes of Xi’an City had higher levels than that of the largest freshwater lake in China, Lake Poyang, where the water quality was assessed using eutrophication and ecological indicators [ 30 ].…”

Section: Resultsmentioning

confidence: 94%

Water Bacterial and Fungal Community Compositions Associated with Urban Lakes, Xi’an, China

Zhang

Wang

Chen

et al. 2018

IJERPH

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Urban lakes play a vital role in the sustainable development of urbanized areas. In this freshwater ecosystem, massive microbial communities can drive the recycling of nutrients and regulate the water quality. However, water bacterial and fungal communities in the urban lakes are not well understood. In the present work, scanning electron microscopy (SEM) was combined with community level physiological profiles (CLPPs) and Illumina Miseq sequence techniques to determine the diversity and composition of the water bacterial and fungal community in three urban lakes, namely Xingqing lake (LX), Geming lake (LG) and Lianhu lake (LL), located in Xi’an City (Shaanxi Province, China). The results showed that these three lakes were eutrophic water bodies. The highest total nitrogen (TN) was observed in LL, with a value of 12.1 mg/L, which is 2 times higher than that of LG. The permanganate index (CODMn) concentrations were 21.6 mg/L, 35.4 mg/L and 28.8 mg/L in LG, LL and LX, respectively (p < 0.01). Based on the CLPPs test, the results demonstrated that water bacterial communities in the LL and LX urban lakes had higher carbon source utilization ability. A total of 62,742 and 55,346 high quality reads were grouped into 894 and 305 operational taxonomic units (OTUs) for bacterial and fungal communities, respectively. Water bacterial and fungal community was distributed across 14 and 6 phyla. The most common phyla were Proteobacteriaand Cyanobacteria. Cryptomycota was particularly dominant in LL, while Chytridiomycota and Entomophthormycota were the most abundant fungal phyla, accounting for 95% of the population in the LL and 56% in the LG. Heat map and redundancy analysis (RDA) highlighted the dramatic differences of water bacterial communities among three urban lakes. Meanwhile, the profiles of fungal communities were significantly correlated with the water quality parameters (e.g., CODMn and total nitrogen, TN). Several microbes (Legionella sp. and Streptococcus sp.) related to human diseases, such as infectious diseases, were also found. The results from this study provides useful information related to the water quality and microbial community compositions harbored in the aquatic ecosystems of urban lakes.

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Section: Resultsmentioning

confidence: 94%

Water Bacterial and Fungal Community Compositions Associated with Urban Lakes, Xi’an, China

Zhang

Wang

Chen

et al. 2018

IJERPH

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“…The diversity was higher than noted in shallow hypertrophic Syczyńskie Lake (Toporowska and Pawlik-Skowrońska 2014). An increase in the value of phytoplankton diversity during lake restoration is usually associated with the improvement of water quality, which has been demonstrated in several lakes (Gołdyn et al 2014;Kozak et al 2017Kozak et al , 2018. The intensity of the internal P-loading process was significantly lower in the littoral zone, where good oxygenation of water overlying the sediments was observed throughout the whole year.…”

Section: Discussionmentioning

confidence: 90%

Internal Loading of Phosphorus from Bottom Sediments of Two Meso-eutrophic Lakes

et al. 2019

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The aim of the study was to determine the seasonal and spatial variability of phosphorus release from bottom sediments of two lakes in Poland (Wielkopolska Region): Lusowskie Lake and Prawe Lake. The comparison of results from these two lakes could have been reliably made, because they were characterized by a similar trophic state (meso-eutrophic), were located in the same climatic zone, and were examined at the same time but differed in terms of morphometry (area, depth, and shape) as well as land use of catchment area. These dimictic lakes were characterized by hypolimnetic oxygen deficits in summer. The internal loading of phosphorus was analysed on the basis of ex situ experiments with intact cores of bottom sediments sampled at two stations, situated in the profundal (the deepest place in the lake) and in the littoral (2.0 m depth). The results indicated that a higher phosphorus load was released from bottom sediments in the profundal zone than in the littoral zone of both lakes. Phosphorus release from the profundal zone was twofold higher in Prawe Lake than in Lusowskie Lake. It reached 2.6 mg P m −2 d −1 in spring and winter in the larger and deeper Lusowskie Lake, compared to 6.04 mg P m −2 d −1 in autumn in the smaller and shallower Prawe Lake. In the littoral zone, phosphorus release reached 1.67 mg P m −2 d −1 and 0.16 mg P m −2 d −1 in both lakes, respectively. Differences in phosphorus internal loading between the lakes were due to differences in the stability of thermal stratification, time of water mixing and oxygen concentration in the depth profile of the lake. Article Highlights • Seasonal and spatial changes of P internal loading from bottom sediments in meso-eutrophic lakes is presented • P release from the profundal zone was twofold higher in Prawe than in Lusowskie Lake. • Differences in P internal loading between the lakes were due to differences in the stability of thermal stratification, time of water mixing, and oxygen concentration

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“…In China, the main environmental parameter that influenced blooms was water temperature (Zhao et al, 2013;Wu et al 2017). The summer period was also related to an increase in blooms in China (Xu et al, 1992) and in Poland (Kozak et al, 2017). Another study (Henry and Santos, 2008) indicated that a temperature of 25ºC was most favorable for the excretion of ammonia and phosphorus by Chironomus larvae, which can be an indicator of increased eutrophication of the reservoir during summer, leading to increase in blooms in the water body.…”

Section: Resultsmentioning

confidence: 99%

Cyanobacteria bloom variations and atmospheric variables, an environmental health contribution

Oliver¹,

Ikefuti²,

Ribeiro³

2020

Rev. ambiente água

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Urbanization in river basins contributes to the anthropogenic eutrophication of their water bodies, leading to the proliferation of toxic algae such as cyanobacteria. There is a characteristic pattern of seasonality in algal blooms and cyanobacterial communities, although these algae may be present or even dominant for most of the year, causing practical problems associated with high cyanobacterial biomass and potential health threats. The increased concentration of toxins originating from these algae, cyanotoxins, in water-supply reservoirs puts the population at serious risk, since they are not removed by conventional treatment and filtration. This study analyzed possible associations between climate elements and cyanobacteria biomass in the Guarapiranga dam reservoir, located in the metropolitan region of São Paulo, Brazil. Meteorological variables were studied exclusively in relation to the cyanobacteria biomass, in order to perceive the influence of weather and climate in this complex system and to provide data for modeling future climate change scenarios. For this purpose, cyanobacteria count data were used for the period from 2010 to 2016, grouped by month, in addition to the atmospheric variables. The strongest correlation with the blooms was with Irradiation and Total Rainfall, explaining 30% of cases of the occurrence of cyanobacteria proliferation at the point of collection GU 101. Despite the notable influence of climatic seasonality on the algae blooms, this difference varies and is not homogeneous, depending on the location and the species studied.

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Changes in Phytoplankton and Water Quality during Sustainable Restoration of an Urban Lake Used for Recreation and Water Supply

Cited by 20 publications

References 59 publications

Water Bacterial and Fungal Community Compositions Associated with Urban Lakes, Xi’an, China

Water Bacterial and Fungal Community Compositions Associated with Urban Lakes, Xi’an, China

Internal Loading of Phosphorus from Bottom Sediments of Two Meso-eutrophic Lakes

Cyanobacteria bloom variations and atmospheric variables, an environmental health contribution

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