Environmental factors controlling colony formation in blooms of the cyanobacteria Microcystis spp. in Lake Taihu, China

Ma, Jing; Brookes, Justin D.; Qin, Boqiang; Paerl, Hans W.; Gao, Guang; Wu, Pan; Zhang, Wei; Deng, Jianming; Zhu, Guangwei; Zhang, Yunling; Xu, Hai; Niu, Hailin

doi:10.1016/j.hal.2013.10.016

Cited by 118 publications

(54 citation statements)

References 59 publications

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“…Generally, nutrient limitation for eutrophication of lakes is a case-specific question, depending on various factors such as temperature (Moss et al 2013), N deposition (Elser et al 2009), lake age (Moss et al 2013), and nutrient loading (Paerl et al 2011). For the three lake basins in this study, the high concentration of N in water is considered to be one of the main stressors for eutrophication in Lake Taihu, Lake Chaohu, and Lake Dianchi since phytoplankton is dominated by non-N-fixing cyanobacteria such as Microcystis (Liu 1999;Paerl et al 2011;Li et al 2014;Ma et al 2014). Recent studies on the relationship between nutrient concentrations and eutrophication show that N rather than P is the limiting nutrient in eutrophication of Lake Dianchi Fig.…”

Section: Introductionmentioning

confidence: 99%

Evaluating anthropogenic N inputs to diverse lake basins: A case study of three Chinese lakes

Gao

Swaney

Hong

et al. 2015

Ambio

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The environmental degradation of lakes in China has become increasingly serious over the last 30 years and eutrophication resulting from enhanced nutrient inputs is considered a top threat. In this study, a quasi-mass balance method, net anthropogenic N inputs (NANI), was introduced to assess the human influence on N input into three typical Chinese lake basins. The resultant NANI exceeded 10 000 kg N km -2 year -1 for all three basins, and mineral fertilizers were generally the largest sources. However, rapid urbanization and shrinking agricultural production capability may significantly increase N inputs from food and feed imports. Higher percentages of NANI were observed to be exported at urban river outlets, suggesting the acceleration of NANI transfer to rivers by urbanization. Over the last decade, the N inputs have declined in the basins dominated by the fertilizer use but have increased in the basins dominated by the food and feed import. In the foreseeable future, urban areas may arise as new hotspots for nitrogen in China while fertilizer use may decline in importance in areas of high population density.

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Section: Introductionmentioning

confidence: 99%

Evaluating anthropogenic N inputs to diverse lake basins: A case study of three Chinese lakes

Gao

Swaney

Hong

et al. 2015

Ambio

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“…Light intensity was measured using a ZDS-10W underwater light meter (lux) and converted to photosynthetic photon density using the following formula: 1000 lux ≈ 19.53 µmol m -2 s -1 . In the lab, TN, TP and NH 3 -N were quantified using the alkaline potassium persulfate oxidation method (Ma et al, 2014).…”

Section: Samples Preparation and Analysismentioning

confidence: 99%

“…Chlorophyll-a (chl-a) was analyzed by spectrophotometry after extraction in 90% acetone (Ma et al, 2014 Additional data from 1980-2004 was also examined using previous research (Chen et al, 1998;Chen et al, 2008;Li, 2001;Liang et al, 1998;Liang et al, 1999;Liao et al, 2004;Long et al, 2013;Pang and Pang, 2007;Shen et al, 2006;Shi and Wu, 1982;Wu et al, 2004;Zhou et al, 1987).…”

Section: Samples Preparation and Analysismentioning

confidence: 99%

“…Cyanobacteria under certain conditions can also produce toxins which along with taste and odor compounds have negative biological and human health effects (Jonas et al, 2014;Pick, 2016;Wiegand and Pflumacher, 2005). Massive proliferations of harmful algae in freshwater and marine ecosystems have caused losses to natural resources, national economies, and resulted in human sickness and death worldwide (Bláha et al, 2009;Lewitus et al, 2012;Ma et al, 2014). A previous study has shown that biological and economic losses due to HABs were estimated at US$82 million annually in the United States and nearly US$813 million annually in Europe (Hoagland and Scatasta, 2006).…”

Section: Introductionmentioning

confidence: 99%

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Multi-year succession of cyanobacteria blooms in a highland reservoir with changing nutrient status, Guizhou Province, China

Long¹,

Hamilton

Yang³

et al. 2018

J Limnol

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Over the last 22 years significant phytoplankton changes in Hongfeng lake reservoir have been observed with multiple years of harmful cyanobacteria blooms (cHABs). Fish farming and other anthropogenic activities from 1994-2001 triggered the harmful blooms. Nine years after the cessation of aquaculture, a conversion from problematic species (Microcystis spp, Aphanizomenon flos-aquae) to the less problematic species P. limnetica and other associated non-cyanobacteria taxa was recorded. Through this period of change, trophic factors (bottom-up) were re-examined, and correlations between cHABs and selected environmental variables were observed. Higher temperatures, nutrients [total nitrogen (TN), total phosphorus (TP)] and available light significantly favored the development of Microcystis spp blooms. With declining nutrient loads, and a decline in TP relative to TN there was a competitive shift from Microcystis summer blooms to the growth of Pseudanabaena limnetica and other non-cyanobacteria. Pseudanabaena limnetica was favored over Microcystis spp when temperatures were <20°C and TP was <0.03 mg L -1 . The apparent species succession to P. limnetica was enhanced by a competitive advantage under varied light conditions. Multiple environmental and biotic conditions (not always nutrients) were driving cHABs. Although only a selected number of environmental variables were examined, the CCA analysis supports observations that temperature and nutrients were associated with the species shift. The replacement of cHABs with the growth of less toxic cyanobacteria like P. limnetica, and other algae creates an interesting scenario (new community condition) for the removal of problematic taxa in reservoir systems. Diverting or controlling blooms will have direct implications on water quality and economic remediation initiatives in reservoir and lake management.

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“…They found that the presence and concentration of microcystin increase along a gradient of increasing lake trophic status. Ma et al [42] reported the influence of N, P and pH on…”

Section: Conventional Approach: Investigating the Relation Between Enmentioning

confidence: 99%

Current Trend of Metagenomic Data Analytics for Cyanobacteria Blooms

Huang¹,

Zheng²,

Wang³

2017

GEP

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Cyanobacterial harmful algal blooms are a major threat to freshwater ecosystems globally. To deal with this threat, researches into the cyanobacteria bloom in fresh water lakes and rivers have been carried out all over the world. This review presents an overlook of studies on cyanobacteria blooms. Conventional studies mainly focus on investigating the environmental factors influencing the blooms, with their limitation in lack of viewing the microbial community structures. Metagenomics study provides insight into the internal community structure of the cyanobacteria at the blooming, and there are researchers reported that sequence data was a better predictor than environmental factors. This further manifests the significance of the metagenomic study. However, large number of the latter appears to be confined only to present snapshoot of the microbial community diversity and structure. This type of investigation has been valuable and important, whilst an effort to integrate and coordinate the conventional approaches that largely focus on the environmental factors control, and the Metagenomics approaches that reveals the microbial community structure and diversity, implemented through machine learning techniques, for a holistic and more comprehensive insight into the cause and control of Cyanobacteria blooms, appear to be a trend and challenge of the study of this field.

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Environmental factors controlling colony formation in blooms of the cyanobacteria Microcystis spp. in Lake Taihu, China

Cited by 118 publications

References 59 publications

Evaluating anthropogenic N inputs to diverse lake basins: A case study of three Chinese lakes

Evaluating anthropogenic N inputs to diverse lake basins: A case study of three Chinese lakes

Multi-year succession of cyanobacteria blooms in a highland reservoir with changing nutrient status, Guizhou Province, China

Current Trend of Metagenomic Data Analytics for Cyanobacteria Blooms

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