Phytoplankton functional groups in a high spatial heterogeneity subtropical reservoir in China

Shen, Henglun; Li, Bin; Cai, Qinghua; Han, Qingxiang; Gu, Yang; Qu, Yuanzhi

doi:10.1016/j.jglr.2014.09.007

Cited by 22 publications

(21 citation statements)

References 61 publications

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“…Medeiros et al [53] also found that group Y favoured waters with high inorganic turbidity during a drought period in a semi-arid region. The current results are in line with studies [8,18,24,54] that were conducted in Chinese lakes and reservoirs. It seems that group Y dominance can account for drought seasons, low light and high turbidity in the reservoir.…”

Section: Response Of Phytoplankton Communities and Functional Groups supporting

confidence: 92%

“…The functional groups theory can be highlighted with two ideas: (1) a species belonging to a functionally well-adapted group can tolerate the limiting environment of factor deficiency more successfully than a less adapted species; (2) a light, P, or C or N constrained habitat is more likely to be populated by species with the appropriate adaptation properties [20]. Although phytoplankton functional groups have been described for lakes, this approach has also been applied to certain types of reservoirs in various regions [12,16,[22][23][24]. This has proved to be a useful method of evaluating ecological status in reservoir ecosystems.…”

Section: Introductionmentioning

confidence: 99%

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Driving Factors and Dynamics of Phytoplankton Community and Functional Groups in an Estuary Reservoir in the Yangtze River, China

Yang

Nan

2019

Water

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Qingcaosha Reservoir, an estuary reservoir on the Yangtze River and a drinking water source, is facing phytoplankton blooms and the factors driving changes in phytoplankton composition and distribution have not been well understood so far. To facilitate the understanding of this problem, we collected surface water samples from January to December 2014 monthly at 12 sampling sites. A total of 205 taxa classified into eight major taxonomic groups were identified. Cyclotella meneghiniana, Melosira varians, Melosira granulata, Cryptomonas ovata and Chlorella vulgaris were the species dominating at least one season. The long stratification period and high nutrient concentration resulted in high chlorophyll a concentration (36.1 ± 18.5 μg L−1) in the midstream and downstream during summer, and mass phytoplankton growth and sedimentation process led to nutrients decrease. In the reservoir, neither P or N limitation was observed in the study period. We observed that water temperature, nutrient concentrations and light availability (Zeu/Zmix) are critical in selecting functional groups. These results highlight that the functional groups characterized the water body well and showed a good ecological status based on the assemblage index (Q average = 4.0). This work also highlights that mixing regime, water temperature and light availability were the driving factors that determine phytoplankton dynamics.

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Section: Response Of Phytoplankton Communities and Functional Groups supporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Driving Factors and Dynamics of Phytoplankton Community and Functional Groups in an Estuary Reservoir in the Yangtze River, China

Yang

Nan

2019

Water

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“…The nutrients analysis (total nitrogen, ammonium, nitrate, and total phosphorus and chemical oxygen demand) was done according to the environmental quality standards for surface water of China (MEP, Ministry of Environmental Protection, 2002). Biomass of phytoplankton in terms of chlorophyll-a concentration was determined according to the protocols for standard observation and measurement in aquatic ecosystems by filtering 100 mL of water through a GF/C whatman filter and the filters were put in a dark cooler and placed in ice box until analysis (Cai et al, 2007;Shen et al, 2014). Pigments extraction was done in 90% aqueous solution of acetone, and chlorophyll-a concentrations were measured spectrometrically.…”

Section: Field Sampling and Analysis 221 Sample Collectionmentioning

confidence: 99%

“…For instance, dams and reservoirs have been constructed to supply water for irrigation and other anthropogenic users. Construction of reservoirs along rivers for water supplies has altered the natural flow pattern, linkages with floodplain lead to the discontinuity of river physical structures which may cause the reduction of ecological diversity of river communities such as zooplankton (Martinet et al, 2014;Shen et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Seasonal dynamics of Zooplankton functional groups in relation to environmental variables in Xiquanyan Reservoir, Northeast China

Mwagona

2018

Ann. Limnol. - Int. J. Lim.

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In this study, the concept of functional feeding groups was used to classify and model the seasonal variation of zooplankton functional groups in relation to environmental variables. A total of 48 zooplankton species were observed in the reservoir and grouped into 8 functional groups. Both environmental variable and the biomass of zooplankton functional groups vary spatially and seasonally. Water temperature, water transparency, total nitrogen and nitrates were significantly higher in summer, while chlorophyll-a and ammonium were higher in autumn and spring, respectively. Biomass of zooplankton was significantly higher in summer (245.81 μg/L), followed by autumn (196.54 μg/L) and spring (54.25 μg/L). Group RF (rotifer filter feeders) dominated in spring, accounting for 80% of the total biomass. In summer and autumn, group RC (rotifer carnivore) and SCF (small copepods and cladocerans filter feeders) were the dominant, respectively. Total nitrogen, total phosphorus, ammonium, chlorophyll-a and water transparency were the major factor influencing zooplankton community. Group RF was positively influenced by ammonium and total phosphorus, while RC, SCF and MCF (middle copepods and cladocerans filter feeders) were positively correlated with chlorophyll-a. Top-down control of phytoplankton by groups RC, SCF and MCF in Xiquanyan reservoir is not strong enough to produce negative effect. Increase in predator size biomass did not strengthen top-down control on prey. It is quite clear that the zooplankton function groups of Xiquanyan reservoir followed a predictable seasonal pattern. This therefore highlights the significance of environmental variables in structuring plankton composition in the reservoir.

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“…As complex artificial ecosystems, they may have artificial or natural cycles (depending on replenishments and withdrawals) as well as high spatial and temporal heterogeneity [1,2]. Such changes can have profound impacts on the compositions of prokaryotic communities and other organisms [3][4][5].…”

Section: Introductionmentioning

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

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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.

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Phytoplankton functional groups in a high spatial heterogeneity subtropical reservoir in China

Cited by 22 publications

References 61 publications

Driving Factors and Dynamics of Phytoplankton Community and Functional Groups in an Estuary Reservoir in the Yangtze River, China

Driving Factors and Dynamics of Phytoplankton Community and Functional Groups in an Estuary Reservoir in the Yangtze River, China

Seasonal dynamics of Zooplankton functional groups in relation to environmental variables in Xiquanyan Reservoir, Northeast China

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

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