Phytoplankton responses to changes in macrophyte density in a tropical artificial pond in Zaria, Nigeria

Chia, Mathias Ahii; Iortsuun, Dora Nguemo; Stephen, Bala John; Ayobamire, A E; Ladan, Zakari

doi:10.2989/16085914.2011.559697

Cited by 12 publications

(2 citation statements)

References 31 publications

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“…Some scholars pointed out that allelochemicals produced by Potamogeton crispus significantly inhibited the growth of Scenedesmus [14]. Others uncovered that Nymphaea lotus and Polygonum limbatum contain phenolic and carboxyl compounds which can inhibit phytoplankton reproduction [15]. Our investigation revealed that floating plants, mainly T. bispinosa and Eichhornia crassipes, recovered rapidly after the removal of the aquaculture seine in Caizi Lakes, especially in Lake Baitu, where 40% of the water surface was covered by aquatic vegetation.…”

Section: Introductionmentioning

confidence: 57%

Effect of Aquatic Vegetation Restoration after Removal of Culture Purse Seine on Phytoplankton Community Structure in Caizi Lakes

et al. 2022

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Many reports have demonstrated that the removal of aquaculture purse seine is conducive to the restoration of aquatic vegetation and the improvement in water quality, but less attention has been paid to the effects on phytoplankton. This paper addressed the response of phytoplankton community structure to aquatic vegetation restoration after purse seine removal in Caizi Lakes. The results showed that the average dissolved oxygen (from 7.43 ± 0.25 mg/L to 9.12 ± 0.49 mg/L) and Secchi depth (from 28.40 ± 6.20 cm to 47.61 ± 14.62 cm) in the water column of the Caizi Lakes increased after the restoration of aquatic vegetation, while the average concentrations of total nitrogen (from 2.00 ± 0.16 mg/L to 1.34 ± 0.18 mg/L) and total phosphorus (from 0.15 ± 0.02 mg/L to 0.06 ± 0.01 mg/L) decreased. After the restoration of the aquatic vegetation, the cell density of phytoplankton declined from 21.04 ± 4.57 × 106 cells/L to 12.74 ± 3.63 × 106 cells/L, and the biomass fell from 18.13 ± 3.57 mg/L to 9.72 ± 2.55 mg/L. We also observed that Shannon–Wiener diversity, Margalef and Pielou indices of phytoplankton surged by 66.50%, 46.20% and 84.68%, respectively. Because this study demonstrated that aquatic vegetation could alleviate the eutrophication, it can provide guidance for the restoration and protection of the aquatic ecosystem.

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Section: Introductionmentioning

confidence: 57%

Effect of Aquatic Vegetation Restoration after Removal of Culture Purse Seine on Phytoplankton Community Structure in Caizi Lakes

et al. 2022

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“…[ 31 , 32 , 33 ], Ascophyllum nodosum [ 34 ], and Polygonum limbatum Meisn. [ 35 ]. The exudation of tannic acid and other phenols by the aquatic macrophytes are documented to suppress the abundance of phytoplankton [allelopathic effect] [ 36 ].…”

Section: Introductionmentioning

confidence: 99%

Physiological and Molecular Response of Prorocentrum minimum to Tannic Acid: An Experimental Study to Evaluate the Feasibility of Using Tannic Acid in Controling the Red Tide in a Eutrophic Coastal Water

Jeong

Malazarte

et al. 2016

IJERPH

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Bioassay and gene expression experiments were conducted in order to evaluate the growth and physiology of Prorocentrum minimum isolated from a eutrophic coastal water in response to tannic acid. In the bioassay experiments, variations in abundance, chlorophyll (chl) a concentration, maximum fluorescence (in vivo Fm), and photosynthetic efficiency (Fv/Fm) were measured over the course of a seven-day incubation. Moreover, stress-related gene expression in both the control and an experimental (2.5 ppm TA treatment) group was observed for 24 h and 48 h. The molecular markers used in this study were the heat shock proteins (Hsp70 and Hsp90) and cyclophilin (CYP). The findings show that P. minimum can thrive and grow at low concentrations (<2.5 ppm) of tannic acid, and, above this concentration, cells begin to slow down development. In addition, TA concentration of 10 ppm halted photosynthetic activity. At the molecular level, treatment with tannic acid increased the expression of Hsp70, Hsp90, and CYP, and heat shock proteins are more upregulated than the cyclophilin gene. Exposure to tannic acid increased the expression of stress factors over time (48 h) by 10- to 27-fold the expression level of the control group. These results suggest that tannic acid can be used to control harmful algal blooms such as those containing P. minimum in eutrophic coastal waters.

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Spatiotemporal Assessment of Water Quality of River Ndakotsu in Lapai, Nigeria

Dadi-Mamud

Oniye²,

Jehu³

et al. 2015

Geo-Informatics in Resource Management and Sustainable Ecosystem

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Phytoplankton responses to changes in macrophyte density in a tropical artificial pond in Zaria, Nigeria

Cited by 12 publications

References 31 publications

Effect of Aquatic Vegetation Restoration after Removal of Culture Purse Seine on Phytoplankton Community Structure in Caizi Lakes

Effect of Aquatic Vegetation Restoration after Removal of Culture Purse Seine on Phytoplankton Community Structure in Caizi Lakes

Physiological and Molecular Response of Prorocentrum minimum to Tannic Acid: An Experimental Study to Evaluate the Feasibility of Using Tannic Acid in Controling the Red Tide in a Eutrophic Coastal Water

Spatiotemporal Assessment of Water Quality of River Ndakotsu in Lapai, Nigeria

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