Temporal and spatial variations in phytoplankton: correlations with environmental factors in Shengjin Lake, China

Wang, Lan; Wang, Chao; Deng, Dexiang; Zhao, Xinquan; Zhou, Zhongze

doi:10.1007/s11356-015-4640-2

Cited by 48 publications

(23 citation statements)

References 31 publications

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“…With the increase of nutrient concentration, the density of phytoplankton in Nansi Lake increased significantly in summer in 2014 and biomass of that increased significantly in 2014 in spring and summer, which indicated that nutrients had important influence on the growth of phytoplankton, and similar results were reported in previous studies [21][22], while the decrease of TP, density, and biomass of phytoplankton in Nansi Lake decreased significantly in 2015. Moreover, in our study, density and biomass of phytoplankton were significantly and positively correlated with TP in 2015.…”

Section: Annual Dynamics Of Plankton and Zoobenthossupporting

confidence: 86%

Differentiated Responses of Plankton and Zoobenthos to Water Quality Based on Annual and Seasonal Analysis in a Freshwater Lake

Jin

Miao

et al. 2017

Pol. J. Environ. Stud.

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In order to reveal the differentiated responses of plankton and zoobenthos to water quality on both annual and seasonal time scales, an ecological study on plankton and zoobenthos community was conducted during 2011 to 2015 in Nansi Lake in northern China. Different dynamics were found among phytoplankton, zooplankton, and zoobenthos in terms of density, biomass, and biodiversity. On an annual time scale and with deterioration of water quality, density and biomass of plankton and zoobenthos showed different variations, while phytoplankton (density, biomass, and biodiversity) changed significantly when water quality improved. On a seasonal time scale, density and biomass of phytoplankton showed significant differences between spring and summer. Results of Pearson's correlation analysis revealed that phytoplankton, zooplankton, and zoobenthos were significantly affected by different environmental factors. Our study demonstrated that phytoplankton was more sensitive to water quality changes than zooplankton and zoobenthos. These results suggest that density and biomass of phytoplankton could rapidly reflect water quality, whereas biodiversity of phytoplankton could indicate long-term status of water quality combined with the physico-chemical parameters of water. The results could contribute to predicting the dynamics of plankton and zoobenthos in freshwater lakes and to selecting effective bio-indicators for ecosystem health assessment of freshwater lakes.

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Section: Annual Dynamics Of Plankton and Zoobenthossupporting

confidence: 86%

Differentiated Responses of Plankton and Zoobenthos to Water Quality Based on Annual and Seasonal Analysis in a Freshwater Lake

Jin

Miao

et al. 2017

Pol. J. Environ. Stud.

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“…Dissolve oxygen concentration ranged between 3 to 4 mg/L which is consistent with previous studies in the same estuary and in Meghna river estuary in Bangladesh [44]. The obtained DO level was lower than the minimum recommended standard (5 mg/L) set by EPA Redbook [45]. Relatively low level of DO can be explained by the fact that the estuarine area receives high load of organic material coming from the nearby agriculture field of upstream areas, which needs high amount of oxygen for consequent decomposition.…”

Section: Discussionsupporting

confidence: 87%

Fish Diversity and Water Characteristics in the Reju Khal River

Parvez¹,

Billah²,

Iqbal³

et al. 2018

Water conserv. manag.

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Hydrobiological characteristics determine the health of an aquatic ecosystem. Reju Khal estuary on the subtropical coasts is among the major estuarine system in Bangladesh. Monitoring the water characteristics and fish diversity of this estuary is very important due to its ecological and economical services provided to the coastal areas. Consequently, the present study investigated the occurrence and abundance of the ichthyofaunal assemblages and hydrobiological characteristics (temperature, pH, salinity, dissolve oxygen, total dissolve solids, sechi depth, phytoplankton and zooplankton abundance) from December 2012 to August 2013. The ranges of the hydrobiological factors were 16-26C for surface water temperature, 7-8 for pH, 8-29 PSU for salinity, 3-4 mg/L for dissolved oxygen (DO), 33-35 mg/L for total dissolved solids (TDS), 21-45 cm for sechi depth, 27-45 individuals/m 3 for zooplankton abundance and 9400-17100 cells/L for phytoplankton abundance. Overall, 6706 individuals of the faunal population comprised of 36 species from 23 families were captured. The species recorded during the study are the representative of the subtropical coasts. The similarity percentage analysis (SIMPER) suggested that Stolephorus indicus was found to be the most contributory species followed by Mugil cephalus and Mystus gulio. The results of this study will be helpful for management and planning for water quality monitoring in this estuary. It is suggested that frequent monitoring of the hydrobiological recourses of the estuarine systems is very necessary in near future to detect the shifting of baselines, assisting ecosystems-based monitoring and enhancing restoration efforts.

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“…Large colonies of aquatic birds have the potential to affect, via droppings, the water quality of aquatic ecosystems [27][28][29][30]. They may affect microbial communities [29,[31][32][33][34], increase nutrient availability [15,[35][36][37][38] and stimulate phytoplankton or macrophyte growth [39,40]. Results from our experiment suggest that feces from herbivorous and piscivorous aquatic birds may produce different effects on dissolved inorganic nutrient concentrations, their ecological stoichiometry, and phytoplankton growth rates, but not on algal community composition and bacterial enrichment.…”

Section: Discussionmentioning

confidence: 92%

“…Aquatic birds are hypothesized as one of the drivers of cyanobacteria blooms due to their large numbers and their demonstrated direct and indirect effects on nutrients [49]. Nutrients associated with aquatic bird feces may prime local blooms [40]. Such blooms may trigger a cascade series of events including light limitation in the water column, high pelagic respiration, water stratification, and sediment anoxia, resulting in a large bottom release of P bound to Fe, increasing the extent and duration of blooms.…”

Section: Discussionmentioning

confidence: 99%

Feces from Piscivorous and Herbivorous Birds Stimulate Differentially Phytoplankton Growth

Petkuvienė

Vaičiūtė

Kataržytė

et al. 2019

Water

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Aquatic birds may impact shallow ecosystems via organic and nutrient enrichment with feces. Such input may alleviate nutrient limitation, unbalance their ecological stoichiometry, and stimulate primary production. Herbivorous and piscivorous birds may produce different effects on aquatic ecosystems due to different physiology, diet and feces elemental composition. We analyze the effects of droppings from swans (herbivorous) and cormorants (piscivorous) on phytoplankton growth via a laboratory experiment. These birds are well represented in the Curonian Lagoon, where they form large colonies. As this lagoon displays summer algal hyper-blooms, we hypothesize an active, direct role of birds via defecation on algal growth. Short-term incubations of phytoplankton under low and high feces addition produces different stimulation of algal growth, significantly higher with high inputs of cormorant feces. The latter produces a major effect on reactive phosphorus concentration that augments significantly, as compared to treatments with swan feces, and determines an unbalanced, N-limited stoichiometry along with the duration of the experiment. During the incubation period, the dominant algal groups switch from blue-green to green algae, but such switch is independent of the level of feces input and from their origin. Heterotrophic bacteria also are stimulated by feces addition, but their increase is transient.

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Temporal and spatial variations in phytoplankton: correlations with environmental factors in Shengjin Lake, China

Cited by 48 publications

References 31 publications

Differentiated Responses of Plankton and Zoobenthos to Water Quality Based on Annual and Seasonal Analysis in a Freshwater Lake

Differentiated Responses of Plankton and Zoobenthos to Water Quality Based on Annual and Seasonal Analysis in a Freshwater Lake

Fish Diversity and Water Characteristics in the Reju Khal River

Feces from Piscivorous and Herbivorous Birds Stimulate Differentially Phytoplankton Growth

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