Influence of algal blooms on the efficacy of La/Al-based phoslock in the control of phosphorus release from sediment in shallow lakes: a microcosm study

Han, Tianlun; Kong, Ming; Tang, Chenjie; Xu, Xueting; Zhu, Yanzhong; Gao, Yuexiang; Zhang, Tao; Zhang, Yimin; Li, Weixin

doi:10.1007/s11368-021-02972-5

Cited by 10 publications

(1 citation statement)

References 35 publications

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“…Severe eutrophication can lead to algal blooms that have deteriorating effects on water quality and aquatic biodiversity [29]. The process of eutrophication gives rise to the emergence of harmful algal blooms (HABs), resulting in the synthesis of harmful toxins that exert adverse impacts on the developmental, locomotor, immunological, neurological, and reproductive functionalities of aquatic organisms [30][31][32]. Another study also reported that secondary metabolites produced by toxic algae affect the feeding, survival, and reproduction of zooplankton, which are sufficiently potent to cause a decline in survival over the life span [33].…”

Section: Introductionmentioning

confidence: 99%

Composition, Distribution, and Biodiversity of Zooplanktons in Tropical Lentic Ecosystems with Different Environmental Conditions

Umi,

Yusoff,

Balia Yusof

et al. 2024

Arthropoda

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A study was conducted to evaluate zooplankton species composition, abundance, and diversity in both natural and artificial lakes with varying trophic levels and to determine the relationship between zooplankton community structure and lake environmental conditions. This study hypothesized that correlations exist between zooplankton community structures and environmental parameters associated with eutrophication in natural and man-made lakes. Sampling was conducted across 16 distinct freshwater lentic ecosystems in Malaysia, including natural lakes/swamps, reservoirs, constructed lakes/ponds, and old mining lakes, spanning a range of trophic levels from mesotrophic to hypereutrophic conditions. Physicochemical parameters were measured in situ, while water and zooplankton samples were collected for nutrient analyses, as well as for zooplankton identification and enumeration. Throughout this study, a total of 58 zooplankton species, consisting of 36 species of rotifers, 12 species of cladocerans, and 10 species of copepods, were recorded. The highest zooplankton density (365.7 ± 13.7 ind L−1) was recorded in constructed lakes/ponds while the lowest density was recorded in natural shallow lakes/swamps (200.5 ± 25.5 ind L−1). On the other hand, significantly higher (p < 0.05) mean species diversity was observed in natural lakes/swamps (H’ = 2.2 ± 0.0); whereas, the lowest diversity was in old mining lakes (H’ = 1.5 ± 0.1). The canonical correspondence analysis (CCA) scores indicated that Polyarthra vulgaris and Chydorus ventricosus were the discriminating species in natural shallow lakes/swamps associated with high water transparency. Meanwhile, the small-sized cladocerans (Ceriodaphnia cornuta) and rotifers (Keratella spp., Brachionus spp., and Trichocerca spp.) were the most discriminating species in lakes with high turbidity, nutrients, and chlorophyll a concentrations, which are the main features of reservoirs and constructed lakes/ponds. Low density and diversity in old mining lakes were due to a low species number and the dominance of two species, Lophocharis curvata (38.8%) and Ptygura libera (39.7%). Overall, the high dominance of a specific zooplankton species resulted in lower biodiversity in artificial ecosystems compared to natural ecosystems. This study elucidated that zooplankton community structure in lakes was significantly influenced by the environmental conditions related to the lake trophic status.

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Section: Introductionmentioning

confidence: 99%

Composition, Distribution, and Biodiversity of Zooplanktons in Tropical Lentic Ecosystems with Different Environmental Conditions

Umi,

Yusoff,

Balia Yusof

et al. 2024

Arthropoda

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Sulfate reduction promotes the release of organic phosphorus and iron-bound phosphorus in black-odor sediments in response to increased temperatures

et al. 2023

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Control of Cyanobacterial Algal Blooms and Soluble Reactive Phosphorus Using PAK-27 and Phoslock®

Akther,

Cutright

2024

Water Conserv Sci Eng

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Cyanobacterial harmful algal blooms (cHABs) can pose a threat to human health and aquatic ecosystems when they release cyanotoxins in water. This research used samples from two northeastern reservoirs in Ohio and assessed (i) the effectiveness of two PAK-27 dosages, (ii) the potential interference of natural organic matter (NOM) on PAK-27 effectiveness, and (iii) the ability of Phoslock® to adsorb phosphorus released during cell lysis to prevent future bloom formation. PAK-27 was applied in either a quarter (15 mg) or full (58 mg) dose in 1.6 L. Two sets of jars were amended with 200:1 Phoslock®:phosphorus 24 h after PAK-27 application to assess the adsorption of phosphorus released upon cell lysis. A final set of jars was amended with 5 mg NOM to evaluate if NOM would interfere with PAK-27 effectiveness. Quarter and full doses of PAK-27 significantly decreased total phycocyanin content within 2 days of application (p < 0.05). However, the addition of 5 mg NOM influenced nutrient availability and algal response. All jars that received algaecide had increased extracellular microcystin levels (p < 0.05). Although Phoslock® adsorbed soluble reactive phosphorus (SRP), jars treated with only PAK-27 or amended with 5 mg NOM reduced more SRP than Phoslock®. Graphical Abstract

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Influence of algal blooms on the efficacy of La/Al-based phoslock in the control of phosphorus release from sediment in shallow lakes: a microcosm study

Cited by 10 publications

References 35 publications

Composition, Distribution, and Biodiversity of Zooplanktons in Tropical Lentic Ecosystems with Different Environmental Conditions

Composition, Distribution, and Biodiversity of Zooplanktons in Tropical Lentic Ecosystems with Different Environmental Conditions

Sulfate reduction promotes the release of organic phosphorus and iron-bound phosphorus in black-odor sediments in response to increased temperatures

Control of Cyanobacterial Algal Blooms and Soluble Reactive Phosphorus Using PAK-27 and Phoslock®

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