Seasonal Dynamics of Microcystins with Associated Biotic and Abiotic Parameters in Two Bays of Lake Taihu, the Third Largest Freshwater Lake in China

Liu, Y.Q.; Xie, Ping; Zhang, D. W.; Wen, Zihao

doi:10.1007/s00128-007-9293-5

Cited by 23 publications

(11 citation statements)

References 27 publications

(23 reference statements)

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“…Gonghu Bay (31°310′230″N, 120°160′350″E) is located at the northeast portion of Taihu Lake, serves as the main drinking water sources of Wuxi city. It suffers a wind-driven dense surface accumulation of toxic Microcystis bloom in warm seasons of recent years and the toxic Microcystis aeruginosa was the absolute dominant species in the water column of Gonghu Bay during the bloom period (Liu et al, 2008;Xie, 2008). During January to December 2008, fifteen sampling sites were selected along the northern shore of Gonghu Bay (Fig.…”

Section: Study Site and Sample Collectionmentioning

confidence: 99%

A systematic study on spatial and seasonal patterns of eight taste and odor compounds with relation to various biotic and abiotic parameters in Gonghu Bay of Lake Taihu, China

Xie¹,

Ma²,

Niu³

et al. 2010

Science of The Total Environment

110

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Section: Study Site and Sample Collectionmentioning

confidence: 99%

A systematic study on spatial and seasonal patterns of eight taste and odor compounds with relation to various biotic and abiotic parameters in Gonghu Bay of Lake Taihu, China

Xie¹,

Ma²,

Niu³

et al. 2010

Science of The Total Environment

110

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“…were common, cyanobacterium Microcystis spp. were the dominant phytoplankton Liu et al 2008), and phosphorus was a limiting factor in Lake Taihu, a large, shallow, eutrophic lake between Jiangsu and Zhejiang Provinces, China (Yang 2004;Xie 2008). Although light also has an effect on algal cells (Fujita et al 2001;Hill et al 2009), we mainly focused on the effect of temperature and phosphorus concentrations on chl a and sizes of two algae under the condition of fixed light intensity.…”

Section: Introductionmentioning

confidence: 99%

Effect of phosphorus and temperature on chlorophyll a contents and cell sizes of Scenedesmus obliquus and Microcystis aeruginosa

Chen

Dai

et al. 2010

Limnology

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An experiment was carried out to evaluate the effects of phosphorus concentration (1, 4 and 10 mg l -1 ) and temperature (15 and 25°C) on chlorophyll a (chl a) contents and cell size/volume of green alga Scenedesmus obliquus and blue green alga Microcystis aeruginosa. Long-term field data from Lake Taihu, a large, shallow eutrophic lake between Jiangsu and Zhejiang Provinces, China, was also used to evaluate the effect of temperature on the model between chl a and total phosphorus (TP). The chl a content of both algae increased with an increase in phosphorus concentration and temperature. Temperatures showed a significantly different effect on chl a content of S. obliquus at a phosphorus concentration of 10 mg l -1 , whereas there was no significant difference at the two lower phosphorus levels. For M. aeruginosa, temperatures presented significantly different effects on the chl a contents at three phosphorus concentrations. Chl a content of neither alga presented an interaction between the nutrient and the temperature. Long-term field data from Lake Taihu also indicated that the addition of temperature to the model increased predictability of chl a by TP. The length/diameter and volume of both algae were greater at the lower temperature and phosphorus concentration. Moderate negative correlations were observed between algal size, volume, and chl a content. Our results suggest that phosphorus concentration and temperature could change chl a contents and size in species-specific algal cells and that temperature should be considered when building the model of TP and chl a concentration.

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“…In northern lake areas, MC-LR and MC-RR were strongly negatively correlated to Chl-a ( p < 0.05, p < 0.01 respectively) and have no clear relation with various forms of nutrients. The reason for high biomass of Microcystis whereas low relatively MCs might be due to a lower ratio of toxic to nontoxic strains [47]. In western lake areas, MC-LR concentration showed a positive correlation with TP ( p < 0.01) and TN ( p < 0.01), suggesting that nutrients favored Microcystis strains to produce MC-LR more than MC-RR in this area.…”

Section: Resultsmentioning

confidence: 99%

Spatio-Temporal Distribution Patterns in Environmental Factors, Chlorophyll-a and Microcystins in a Large Shallow Lake, Lake Taihu, China

Rui

Shan

Gao

et al. 2014

IJERPH

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The spatio-temporal distribution of environmental factors, chlorophyll-a (Chl-a), and microcystins (MCs) in a shallow lake, Lake Taihu (China), were investigated from 2009 to 2011 on a monthly basis at nine sampling stations. The annual mean concentration ranges of total nitrogen (TN), total phosphorus (TP), Chl-a, MC-LR and MC-RR were 0.17–10.53 mg/L, 0.027–0.581 mg/L, 0.10–129.75 µg/L, 0.013–2.019 µg/L and 0.002–0.794 µg/L, respectively. The average TN, ammonium (NH4+) and TP concentrations in Meiliang Bay decreased from 3.54 to 2.26 mg/L, 0.63 to 0.31 mg/L and 0.150 to 0.124 mg/L, respectively, when compared with values from 2006–2008, indicating that water quality has improved in severe cyanobacterial bloom areas in recent years. Additionally, the distribution of MCs was northern lake areas > western lake areas > central lake areas > macrophyte-dominated areas. Correlation analysis revealed that nutrients were the most important variable accounting for the variation of extracellular MC-LR concentration in heavy cyanobacterial bloom areas of Lake Taihu. During the study period, the maximum MCs concentration reached 2.75 ± 0.27 μg/L in the bloom period in the northern lake areas, which is more than two times the safety limit of 1 μg/L MCs required for drinking water. However, microcystins decreased gradually as the water quality improved from 2009 to 2011, indicating that the risk of MCs exposure was slightly decreased in Lake Taihu.

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Seasonal Dynamics of Microcystins with Associated Biotic and Abiotic Parameters in Two Bays of Lake Taihu, the Third Largest Freshwater Lake in China

Cited by 23 publications

References 27 publications

A systematic study on spatial and seasonal patterns of eight taste and odor compounds with relation to various biotic and abiotic parameters in Gonghu Bay of Lake Taihu, China

A systematic study on spatial and seasonal patterns of eight taste and odor compounds with relation to various biotic and abiotic parameters in Gonghu Bay of Lake Taihu, China

Effect of phosphorus and temperature on chlorophyll a contents and cell sizes of Scenedesmus obliquus and Microcystis aeruginosa

Spatio-Temporal Distribution Patterns in Environmental Factors, Chlorophyll-a and Microcystins in a Large Shallow Lake, Lake Taihu, China

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