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Journal articles on the topic 'Algal bloom control'

Author: Grafiati

Published: 4 June 2021

Last updated: 19 February 2022

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1

Jiang, Hao, Jian Liang Rui, Hai Lin Li, De Hua Zhao, Jing Jing Fu, and Shu Qing An. "Research on Algal Bloom Control for Environment Engineering." Applied Mechanics and Materials 340 (July 2013): 971–74. http://dx.doi.org/10.4028/www.scientific.net/amm.340.971.

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Aquatic plants inhibit algae through nutrient competition, sludge sedimentation and the release of allelochemicals in three ways. Investigating Pistia stratiotes L in East Lake, Shao (2001) observed removal rate of the BOD5 achieved more than 70%; the total nitrogen removal efficiency was 60%, the total phosphorus removal efficiency was approximately 70% or more, and this biochemical inhibitory effect may promote algal settlement. Ho Pool (1999) found that the Rhizoma AcoriGraminei could cause a water total nitrogen (TN) removal rate of 87.4%, a total phosphorus (TP) removal rate of 43.9%, and

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2

Jing, Yuanyuan, Yuchao Zhang, Minqi Hu, Qiao Chu, and Ronghua Ma. "MODIS-Satellite-Based Analysis of Long-Term Temporal-Spatial Dynamics and Drivers of Algal Blooms in a Plateau Lake Dianchi, China." Remote Sensing 11, no. 21 (2019): 2582. http://dx.doi.org/10.3390/rs11212582.

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Algal blooms in eutrophic lakes have been a global issue to environmental ecology. Although great progress on prevention and control of algae have been made in many lakes, systematic research on long-term temporal-spatial dynamics and drivers of algal blooms in a plateau Lake Dianchi is so far insufficient. Therefore, the algae pixel-growing algorithm (APA) was used to accurately identify algal bloom areas at the sub-pixel level on the Moderate Resolution Imaging Spectroradiometer (MODIS) data from 2000 to 2018. The results showed that algal blooms were observed all year round, with a reduced

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3

Zhang, Yuchao, Steven Loiselle, Kun Shi, et al. "Wind Effects for Floating Algae Dynamics in Eutrophic Lakes." Remote Sensing 13, no. 4 (2021): 800. http://dx.doi.org/10.3390/rs13040800.

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Wind-speed decline is an important impact of climate change on the eastern Asian atmospheric circulation. Although wind does not determine algae biomass in eutrophic lakes, it is a decisive factor in the formation and severity of algae blooms. Based on 2000–2018 MODIS images, this study compared the effects of wind speed on algal blooms in three typical eutrophic lakes in China: Lake Taihu, Lake Chaohu and Lake Dianchi. The results indicate that climate change has different effects on the wind speed of the three lakes, but a common effect on the vertical distribution of algae. A wind speed of

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4

Mayali, Xavier, Peter J. S. Franks, and Farooq Azam. "Cultivation and Ecosystem Role of a Marine Roseobacter Clade-Affiliated Cluster Bacterium." Applied and Environmental Microbiology 74, no. 9 (2008): 2595–603. http://dx.doi.org/10.1128/aem.02191-07.

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ABSTRACT Isolation and cultivation are a crucial step in elucidating the physiology, biogeochemistry, and ecosystem role of microorganisms. Many abundant marine bacteria, including the widespread Roseobacter clade-affiliated (RCA) cluster group, have not been cultured with traditional methods. Using novel techniques of cocultivation with algal cultures, we have accomplished successful isolation and propagation of a strain of the RCA cluster. Our experiments revealed that, in addition to growing on alga-excreted organic matter, additions of washed bacterial cells led to significant biomass decr

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5

Qingxin, Yang. "Algal bloom in Taihu Lake and its control." Journal of Lake Sciences 8, no. 1 (1996): 67–74. http://dx.doi.org/10.18307/1996.0109.

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6

Zeng, Guoming, Jing Luo, Xiaowan Liu, Maolan Zhang, and Hengjun Tang. "Research on the changes of physiological characteristics of algal cells in the process of algae dissolving by immobilized white rot fungi." E3S Web of Conferences 165 (2020): 05033. http://dx.doi.org/10.1051/e3sconf/202016505033.

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With the increasing of water pollution, water eutrophication is seriously affecting people’s daily life and production. Therefore, it is particularly important to explore safe and efficient algae control technology. In the current algal bloom treatment methods, the physical method is not complete in algae dissolving, and the cost of algal control is high. The chemical method is easy to produce secondary pollution and toxic by-products, and the safety is not high. However, the biological method has the advantages of low cost, high ecological security and good ecological compatibility. It is con

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7

Lathrop, Richard C., Stephen R. Carpenter, Craig A. Stow, Patricia A. Soranno, and John C. Panuska. "Phosphorus loading reductions needed to control blue-green algal blooms in Lake Mendota." Canadian Journal of Fisheries and Aquatic Sciences 55, no. 5 (1998): 1169–78. http://dx.doi.org/10.1139/f97-317.

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We evaluated the reductions in P loading needed to control blue-green algal blooms in Lake Mendota, Wisconsin. After developing a 21-year loading data set, we used a P mass balance model expressed as a difference equation with an annual time step indexed from mid-April. We defined and estimated a loss parameter lambda as the proportion of the lake's April P concentration lost through sedimentation and outflow during the following year. Using the distribution of annual lambda 's and input loadings, we predicted the steady-state distribution of April P concentrations that would result from scena

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8

Simões, Erik, Renato Campos Vieira, Mathias Alberto Schramm, et al. "Impact of harmful algal blooms (Dinophysis acuminata) on the immune system of oysters and mussels from Santa Catarina, Brazil." Journal of the Marine Biological Association of the United Kingdom 95, no. 4 (2014): 773–81. http://dx.doi.org/10.1017/s0025315414001702.

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Blooms of the harmful alga Dinophysis acuminata, which produces okadaic acid (OA), are becoming recurrent in Santa Catarina coast, where most of the shellfish marine farms in Brazil are located. We evaluated the impact of D. acuminata blooms on various haemato-immunological parameters and on tissue integrity of cultivated oysters (Crassostrea gigas) and mussels (Perna perna). Animals were sampled during two natural algal blooms, one at Praia Alegre (PA: 2950 cells l−1) and the other at Praia de Zimbros (PZ: 4150 cells l−1). Control animals were sampled at the same sites, 30 days after the end

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9

Ohadi, Sara, Amar Godar, John Madsen, and Kassim Al-Khatib. "Response of Rice Algal Assemblage to Fertilizer and Chemical Application: Implications for Early Algal Bloom Management." Agronomy 11, no. 3 (2021): 542. http://dx.doi.org/10.3390/agronomy11030542.

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California water-seeded rice is challenged with the rapid growth of nuisance algae at the beginning of the season. Rice seedlings entangled in the algal mat may not be established, causing empty rice patches in the field. Two separate studies were conducted to (1) evaluate the effect of nutrients (nitrogen and phosphorous) on algae growth, and (2) test various chemical options to control algae. Both studies utilized 19 L buckets inoculated with algae collected from a rice field. In the nutrient evaluation study, 36 nutrient treatments obtained from a combination of nitrogen (0, 60, 120, 180, 2

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Bae, Jong Hyuk, Jae-Hyoung Joo, You Jung Lee, Myung-Soo Han, and Seong Hun Kim. "Fabrication of biodegradable polylactide foam for algal bloom control." Fibers and Polymers 16, no. 10 (2015): 2087–93. http://dx.doi.org/10.1007/s12221-015-5555-8.

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11

Chung, Se-Woong, Heungsoo Lee, and Yongrock Jung. "The effect of hydrodynamic flow regimes on the algal bloom in a monomictic reservoir." Water Science and Technology 58, no. 6 (2008): 1291–98. http://dx.doi.org/10.2166/wst.2008.482.

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The effectiveness of a proposed curtain weir to be installed in the transitional zone of a eutrophic reservoir located in monsoon areas on the control of algal blooms in the lacustrine zone where drinking water withdrawals occur was assessed with various hydrodynamic flow regimes. A two-dimensional hydrodynamic and eutrophication model that can accommodate vertical displacement of the weir following the water surface changes was developed and validated using field data obtained from two distinctive hydrological years; drought (2001) and wet (2004). The model adequately reproduced the temporal

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12

Yu, Li, Weihua Li, Rong Wang, and Qiang Yuan. "Effects of nutrient addition on algae pigments during the early stages of phytoplankton bloom." E3S Web of Conferences 136 (2019): 06033. http://dx.doi.org/10.1051/e3sconf/201913606033.

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To clarify the effects of nutrient addition on algal growth during the early stages of phytoplankton bloom, an microcosm experiment was conducted in early spring; it included two groups of in situ samples: sediment plus lake water (S+W), representing the nominal “control”, and sediment plus 50% BG11 medium and 50% lake water (S+BW), representing the treatment of nutrient addition. The results demonstrated the recruitment biomass of non-cyanobacteria in the treatment group was about 46.7% of that in the control group, and the recruitment biomass of cyanobacteria in the treatment group was appro

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13

Mitra, Aditee, and Kevin J. Flynn. "Promotion of harmful algal blooms by zooplankton predatory activity." Biology Letters 2, no. 2 (2006): 194–97. http://dx.doi.org/10.1098/rsbl.2006.0447.

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The relationship between algae and their zooplanktonic predators typically involves consumption of nutrients by algae, grazing of the algae by zooplankton which in turn enhances predator biomass, controls algal growth and regenerates nutrients. Eutrophication raises nutrient levels, but does not simply increase normal predator–prey activity; rather, harmful algal bloom (HAB) events develop often with serious ecological and aesthetic implications. Generally, HAB species are outwardly poor competitors for nutrients, while their development of grazing deterrents during nutrient stress ostensibly

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14

Tiwari, Pankaj Kumar, Sudip Samanta, Jocirei D. Ferreira, and Arvind Kumar Misra. "A Mathematical Model for the Effects of Nitrogen and Phosphorus on Algal Blooms." International Journal of Bifurcation and Chaos 29, no. 10 (2019): 1950129. http://dx.doi.org/10.1142/s0218127419501293.

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The increase of nutrients in lakes typically stimulates the growth of algae in this environment. Therefore, it is important to understand the connection between nutrient concentration and algal biomass to manage the water pollution caused by excessive plant nutrients. It is worth observing that phosphorus and nitrogen are often considered as the principal limiting nutrients for aquatic algal production due to their short supply compared to cellular growth requirements. In freshwaters, phosphorus is the least abundant among the nutrients needed in large quantity by photosynthetic organisms, hen

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15

Chen, Feiran, Zhenggao Xiao, Le Yue, et al. "Algae response to engineered nanoparticles: current understanding, mechanisms and implications." Environmental Science: Nano 6, no. 4 (2019): 1026–42. http://dx.doi.org/10.1039/c8en01368c.

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16

Liu, Ting Ting, Yu Fu Peng, Li Liu, and Xue Shan Xia. "Isolation and Characterization of the Algicidal Bacterium DCJ-2." Advanced Materials Research 1065-1069 (December 2014): 3077–82. http://dx.doi.org/10.4028/www.scientific.net/amr.1065-1069.3077.

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Algicidal bacteria as part of the microbial populations in natural waters, is possible toinhibit the growth of algae or kill algae, dissolve algal cells in a direct or indirect way. In this study,four algicidal bacteria were isolated from cyanobacteria bloom water of Lake Dianchi, designated asDCJ-1, DCJ-2, DCJ-3, DCJ-4 respectively. The algicidal range and algicidal activity assay of the fouralgicidal bacteria showed that they have different algicidal range on the 10 tested algal species, whichstrain DCJ-2 has the best algicidal activity. The results indicated that bacterial strain DCJ-2 has

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17

Yin, Wei, Xiao Kang Xin, and Hai Yan Jia. "Preliminary Research on Hydrodynamic Dispatch Method of Algal Blooms in Three Gorges Reservoir Bays." Applied Mechanics and Materials 675-677 (October 2014): 811–17. http://dx.doi.org/10.4028/www.scientific.net/amm.675-677.811.

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Spring algal happened in the bays area frequently after Three Gorges Reservoir’s impoundment. Algal bloom is closely related with nutrients, light, temperature and flow velocity. This paper carried out preliminary research on algal blooms hydrodynamic control method by optimizing reservoirs dispatch on main and tributary channels. Making use of software MIKE 21, a Xiangxi River-Three Gorges Reservoir integrate hydrodynamic numerical model has been established, and a series of conditions have been simulated and studied. The result shows that if Three Gorges Reservoir operates alone, velocity at

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18

GHOSH, MINI. "MODELING BIOLOGICAL CONTROL OF ALGAL BLOOM IN A LAKE CAUSED BY DISCHARGE OF NUTRIENTS." Journal of Biological Systems 18, no. 01 (2010): 161–72. http://dx.doi.org/10.1142/s021833901000324x.

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This paper proposes and analyzes a nonlinear model for the biological control of algal bloom in a lake. Algal bloom often occurs in a lake due to excessive flow of nutrients from domestic drainage, industrial and agricultural waste, and this causes the decrease in the concentration of dissolved oxygen in the lake. Hence, it threatens the survival of other species of the ecosystem indirectly, and it is also responsible for the degradation of water quality in the lake because of less oxygen content. In this work we study biological control which means the introduction of predatory fish, i.e. the

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19

Hu, Hongying, and Yu Hong. "Algal-bloom control by allelopathy of aquatic macrophytes — A review." Frontiers of Environmental Science & Engineering in China 2, no. 4 (2008): 421–38. http://dx.doi.org/10.1007/s11783-008-0070-4.

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20

Liao, Chunli, Xiaobo Liu, and Linna Shan. "Optimization of liquid media and biosafety assessment for algae-lysing bacterium NP23." Canadian Journal of Microbiology 60, no. 9 (2014): 593–97. http://dx.doi.org/10.1139/cjm-2014-0322.

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To control algal bloom caused by nutrient pollution, a wild-type algae-lysing bacterium was isolated from the Baiguishan reservoir in Henan province of China and identified as Enterobacter sp. strain NP23. Algal culture medium was optimized by applying a Placket–Burman design to obtain a high cell concentration of NP23. Three minerals (i.e., 0.6% KNO3, 0.001% MnSO4·H2O, and 0.3% K2HPO4) were found to be independent factors critical for obtaining the highest cell concentration of 1013 CFU/mL, which was 104 times that of the control. In the algae-lysing experiment, the strain exhibited a high ly

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21

Kim, Hee-Jun, Gui-Sook Nam, Jung-Seok Jang, Chan-Hee Won, and Hyun-Woo Kim. "Cold Plasma Treatment for Efficient Control over Algal Bloom Products in Surface Water." Water 11, no. 7 (2019): 1513. http://dx.doi.org/10.3390/w11071513.

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Algal bloom significantly alters the physicochemical properties of water due to drastic pH change, dissolved oxygen depletion/super-saturation, and toxicity, which lead to ecosystem destruction. To prevent this, this study evaluated the reduction performance of algal biomass by applying a non-thermal or cold plasma process. We used chlorophyll-a (chl-a), suspended solids (SS), and turbidity as indicators of the biomass. Results demonstrated that their removal efficiencies were in the ranges 88–98%, 70%–90%, and 53%–91%, respectively. Field emission scanning electron microscopy indicated how th

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22

Pan, Gang, Xiaojun Miao, Lei Bi, et al. "Modified Local Soil (MLS) Technology for Harmful Algal Bloom Control, Sediment Remediation, and Ecological Restoration." Water 11, no. 6 (2019): 1123. http://dx.doi.org/10.3390/w11061123.

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Harmful algal blooms (HABs), eutrophication, and internal pollutant sources from sediment, represent serious problems for public health, water quality, and ecological restoration worldwide. Previous studies have indicated that Modified Local Soil (MLS) technology is an efficient and cost-effective method to flocculate the HABs from water and settle them onto sediment. Additionally, MLS capping treatment can reduce the resuspension of algae flocs from the sediment, and convert the algal cells, along with any excessive nutrients in-situ into fertilisers for the restoration of submerged macrophyt

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23

Cao, Mengmeng, Kebiao Mao, Xinyi Shen, Tongren Xu, Yibo Yan, and Zijin Yuan. "Monitoring the Spatial and Temporal Variations in The Water Surface and Floating Algal Bloom Areas in Dongting Lake Using a Long-Term MODIS Image Time Series." Remote Sensing 12, no. 21 (2020): 3622. http://dx.doi.org/10.3390/rs12213622.

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Significant water quality changes have been observed in the Dongting Lake region due to environmental changes and the strong influence of human activities. To protect and manage Dongting Lake, the long-term dynamics of the water surface and algal bloom areas were systematically analyzed and quantified for the first time based on 17 years of Moderate Resolution Imaging Spectroradiometer (MODIS) observations. The traditional methods (index-based threshold algorithms) were optimized by a dynamic learning neural network (DL-NN) to extract and identify the water surface area and algal bloom area wh

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24

Knapp, Abigail S., and Adam M. Milewski. "Spatiotemporal Relationships of Phytoplankton Blooms, Drought, and Rainstorms in Freshwater Reservoirs." Water 12, no. 2 (2020): 404. http://dx.doi.org/10.3390/w12020404.

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Algal blooms, especially those composed of toxic phytoplankton, are a global threat to eutrophic and mesotrophic freshwater reservoirs. While extreme hydrologic events such as flooding and drought have been shown to control bloom onset and success, the spatiotemporal dynamics of these relationships are still unclear for mesotrophic reservoirs. In this study, the relationships between hydrologic events and phytoplankton in Lake Allatoona and Lake Lanier, Georgia, United States, were characterized using historical and satellite datasets from 2008 to 2017 and statistical modeling. Results showed

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Kim, Sok, Changsu Lee, Thi-Thao Vo, Sang-Il Han, and Yoon-E. Choi. "Eco-friendly Control of Harmful Algal Bloom Species Using Biological Predators." Korean Journal of Environmental Biology 34, no. 2 (2016): 91–96. http://dx.doi.org/10.11626/kjeb.2016.34.2.091.

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26

Mallin, Michael A., and Lawrence B. Cahoon. "The Hidden Impacts of Phosphorus Pollution to Streams and Rivers." BioScience 70, no. 4 (2020): 315–29. http://dx.doi.org/10.1093/biosci/biaa001.

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Abstract Phosphorus (P) enrichment to streams, lakes, and estuaries is increasing throughout the United States. P loading is typically viewed from a harmful algal bloom perspective; if added P causes excess growths of phytoplankton or macroalgae, it may become targeted for control. However, P loading also contributes to two other non–algae-based aquatic problems. Field and experimental evidence shows that P loading directly stimulates growth of aquatic bacteria, which can increase to concentrations that exert a significant biochemical oxygen demand on water bodies, contributing to hypoxia, a w

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27

Paerl, Hans W., Rolland S. Fulton, Pia H. Moisander, and Julianne Dyble. "Harmful Freshwater Algal Blooms, With an Emphasis on Cyanobacteria." Scientific World JOURNAL 1 (2001): 76–113. http://dx.doi.org/10.1100/tsw.2001.16.

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Suspended algae, or phytoplankton, are the prime source of organic matter supporting food webs in freshwater ecosystems. Phytoplankton productivity is reliant on adequate nutrient supplies; however, increasing rates of nutrient supply, much of it manmade, fuels accelerating primary production or eutrophication. An obvious and problematic symptom of eutrophication is rapid growth and accumulations of phytoplankton, leading to discoloration of affected waters. These events are termed blooms. Blooms are a prime agent of water quality deterioration, including foul odors and tastes, deoxygenation o

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28

Xie, Zheng Chao, In Chio Lou, Wai Kin Ung, and Kai Meng Mok. "A Prediction Model for Phytoplankton Abundance Based on Relevance Vector Machine." Applied Mechanics and Materials 145 (December 2011): 314–19. http://dx.doi.org/10.4028/www.scientific.net/amm.145.314.

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Freshwater algal bloom is caused by rapid increases or accumulations of phytoplankton abundance due to the excess of nutrients in eutrophic lakes or reservoirs. The population dynamics in such ecosystem is difficult to explain and predict due to the high non-linearity of the relationship between phytoplankton abundance and water variables. Thus the capacity of model is a crucial point for system simulation and information abstraction about the target ecosystem. Recently relevance vector machine (RVM) has been reported to be able to work more effectively with simpler algorithm, faster convergen

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Sarkar, R. R., B. Mukhopadhyay, R. Bhattacharyya, and Sandip Banerjee. "Time lags can control algal bloom in two harmful phytoplankton–zooplankton system." Applied Mathematics and Computation 186, no. 1 (2007): 445–59. http://dx.doi.org/10.1016/j.amc.2006.07.113.

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30

Kalinichenko, Antonina, Pavlo Pisarenko, and Maksym Kulyk. "Algae in urban water bodies - control of growth and use as a biomass." E3S Web of Conferences 45 (2018): 00028. http://dx.doi.org/10.1051/e3sconf/20184500028.

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Enhancing the ecology security of Ukraine and other developing countries is predetermined by the environmental problems of cities. It prompts studies on the contamination of city's and adjacent water bodies. The control of blue-green algae distribution and the use of its biomass for production of the biofuels, energy, oils, medicine, etc. is one of the contributing factors to the well-balanced development of infrastructure of cities. The intensity of the processes of eutrophication and the species composition of the algae, which cause algal blooming, was investigated based on data of the Vorsk

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31

Kim, Young-Hyo, En-Mi Gwon, Ha-Kyung Kim, In-Hwan Cho, Hyuk Lee, and Baik-Ho Kim. "Control of Nuisance Cyanobacteria in Drinking Water Resources Using Alternative Algae-Blocking Mats." Water 12, no. 6 (2020): 1576. http://dx.doi.org/10.3390/w12061576.

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The water intake facility of Paldangho Lake (PIF), constructed in 1988, supplies drinking water to the Seoul metropolitan area and satellite city (ca. 20 million inhabitants) in South Korea. A nuisance cyanobacterial bloom (CB) has been observed every year in the PIF. Thus, related governments have been funding the control of CBs and algal-originated materials (AOMs). In this study, an algae-blocking mat (ABM) was developed to protect against CBs and AOMs considering temperature and water depth. We evaluated the daily and monthly performance of the ABM on phytoplankton, pH, dissolved oxygen, c

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Jing, Yuan Shu, Zhi Hao Jing, Jing Yuan Hu, and Fei Chen. "Meteorological Conditions Influences on the Variability of Algae Bloom in Taihu Lake and its Risk Prediction." Applied Mechanics and Materials 253-255 (December 2012): 935–38. http://dx.doi.org/10.4028/www.scientific.net/amm.253-255.935.

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Lake eutrophication and algal bloom is one of the most important environmental problems facing China's lakes, and it is also the focus of lake eutrophication control of the world's attention. The monitoring data on chlorophyll concentration was analyzed every one month, combined with corresponding weather conditions from 2004 to 2006. According to the degree of eutrophication in Taihu Lake, it is divided into five Lakes: heavy eutrophication region V, eutrophication region IV, middle-level eutrophication region III, light eutrophication region II and nutrition region I. Based on fuzzy factor o

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Kim, D. W., J. H. Min, M. Yoo, M. Kang, and K. Kim. "Long-term effects of hydrometeorological and water quality conditions on algal dynamics in the Paldang dam watershed, Korea." Water Supply 14, no. 4 (2014): 601–8. http://dx.doi.org/10.2166/ws.2014.014.

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The primary goal of this study is to shed light on some important factors that control algal bloom in a large-scale regulated river system. Long-term impacts of environmental conditions on algal dynamics were investigated in the Paldang dam watershed, Korea. Dam inflow, water temperature, chlorophyll-a, TN, PO4-P and TP data collected at five major dams located on the North Han River (NHR) and at four water quality monitoring sites on the South Han River were analyzed for 21 years (1992 to 2012) to examine spatio-temporal variations in each. A pattern of slightly increasing chlorophyll-a and n

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Wang, Changhui, Leilei Bai, He-Long Jiang, and Huacheng Xu. "Algal bloom sedimentation induces variable control of lake eutrophication by phosphorus inactivating agents." Science of The Total Environment 557-558 (July 2016): 479–88. http://dx.doi.org/10.1016/j.scitotenv.2016.03.082.

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Yang, Jing, Kai Qiao, Junping Lv, et al. "Isolation and Identification of Two Algae-Lysing Bacteria against Microcystis aeruginosa." Water 12, no. 9 (2020): 2485. http://dx.doi.org/10.3390/w12092485.

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Algae blooms present an environmental problem worldwide. In response to the outbreak of harmful algal blooms in cyanobacteria, the role of biological control has drawn wide attention, particularly for algicidal bacteria. The mechanism underlying algicidal activity was determined in our study. Algae-lysing bacteria used were separated from water and sediment collected from the Fenhe scenic spot of Taiyuan. Genetic and molecular identification was conducted by polymerase chain reaction amplification based on 16S rDNA gene. These bacterial strains were identified as Raoultella planticola and Aero

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Lan, Yu, Qi Chen, Ting Gou, et al. "Algicidal Activity of Cyperus rotundus Aqueous Extracts Reflected by Photosynthetic Efficiency and Cell Integrity of Harmful Algae Phaeocystis globosa." Water 12, no. 11 (2020): 3256. http://dx.doi.org/10.3390/w12113256.

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Phaeocystis globosa is regarded as a notoriously harmful algal bloom species. Suppressing harmful algae using algicidal substances extracted from plants is considered an effective method. The physiological and biochemical processes of P. globosa were explored by exposure to different concentrations of aqueous extracts of Cyperus rotundus. All treatments indicated various inhibitory effects on the algal growth compared to the control samples without adding extracts. At 48 h, the 4, 8, and 16 mg/mL treatment groups showed a significant inhibitory effect, consistent with a decrease in the chlorop

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Nagasaki, Keizo, Kenji Tarutani, and Mineo Yamaguchi. "Growth Characteristics of Heterosigma akashiwo Virus and Its Possible Use as a Microbiological Agent for Red Tide Control." Applied and Environmental Microbiology 65, no. 3 (1999): 898–902. http://dx.doi.org/10.1128/aem.65.3.898-902.1999.

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ABSTRACT The growth characteristics of Heterosigma akashiwovirus clone 01 (HaV01) were examined by performing a one-step growth experiment. The virus had a latent period of 30 to 33 h and a burst size of 7.7 × 102 lysis-causing units in an infected cell. Transmission electron microscopy showed that the virus particles formed on the peripheries of viroplasms, as observed in a natural H. akashiwo cell. Inoculation of HaV01 into a mixed algal culture containing four phytoplankton species, H. akashiwo H93616 , Chattonella antiqua (a member of the family Raphidophyceae), Heterocapsa triquetra (a me

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Kang, Hye-Eun, Tae-Ho Yoon, Sunyoung Yoon, et al. "Genomic analysis of red-tide water bloomed with Heterosigma akashiwo in Geoje." PeerJ 6 (May 29, 2018): e4854. http://dx.doi.org/10.7717/peerj.4854.

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Microbial community structures of harmful algal bloom (HAB) caused by Heterosigma akashiwo in Geoje were analyzed using the MiSeq platform. To analyze phytoplankton communities without cross-reactivity with predominant bacteria, a new phytoplankton-specific 23S universal primer set was designed by modifying two previously used ones. The new universal primer set turned out to be a useful tool for the analysis of the phytoplankton community; it showed a high specificity for phytoplankton without cross-reactivity to bacterial sequences as well as the wide taxon coverage presenting from prokaryoti

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SANO, Akira, Yumina OGURA, Shinichi BABA, Ryuichi EZAKI, and Masashi SUZUKI. "Algal Bloom and Water Quality Control Using Environmental Reclamation Sand Recycled from Casting Waste." Journal of Japan Society on Water Environment 38, no. 4 (2015): 101–7. http://dx.doi.org/10.2965/jswe.38.101.

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Park, Jungsu, Younggyu Son, and Woo Hyoung Lee. "Variation of efficiencies and limits of ultrasonication for practical algal bloom control in fields." Ultrasonics Sonochemistry 55 (July 2019): 8–17. http://dx.doi.org/10.1016/j.ultsonch.2019.03.007.

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Donaghay, Percy L., and Thomas R. Osborn. "Toward a theory of biological-physical control of harmful algal bloom dynamics and impacts." Limnology and Oceanography 42, no. 5part2 (1997): 1283–96. http://dx.doi.org/10.4319/lo.1997.42.5_part_2.1283.

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Zhang, L., S. T. Liu, T. Liu, C. Yu, and Z. Hu. "Control effect of periodic variation on the growth of harmful algal bloom causative species." Communications in Nonlinear Science and Numerical Simulation 54 (January 2018): 185–201. http://dx.doi.org/10.1016/j.cnsns.2017.05.023.

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Wang, Zhifu, Zhiming Yu, Xiuxian Song, Xihua Cao, and Xiaotian Han. "Effects of modified clay on cysts of Scrippsiella trochoidea for harmful algal bloom control." Chinese Journal of Oceanology and Limnology 32, no. 6 (2014): 1373–82. http://dx.doi.org/10.1007/s00343-015-4008-y.

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Kenefick, S. L., S. E. Hrudey, H. G. Peterson, and E. E. Prepas. "Toxin Release from Microcystis Aeruginosa after Chemical Treatment." Water Science and Technology 27, no. 3-4 (1993): 433–40. http://dx.doi.org/10.2166/wst.1993.0387.

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Cyanobacterial (blue-green algal) blooms in agricultural dugouts and eutrophic lakes or reservoirs are common across the Canadian prairies. These blooms have caused livestock and wildlife poisonings that have been attributed to neurotoxins and/or hepatotoxins produced by various species of cyanobacteria. The hepatotoxins are extremely potent acute poisons. For example, microcystin LR has an LD50 of 50 µg/kg, by intraperitoneal injection, in mice. Hepatotoxins may also pose chronic health risks. Consequently, their presence in drinking water sources is attracting increasing attention. Chemical

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Korosi, Jennifer B., Samantha M. Burke, Joshua R. Thienpont, and John P. Smol. "Anomalous rise in algal production linked to lakewater calcium decline through food web interactions." Proceedings of the Royal Society B: Biological Sciences 279, no. 1731 (2011): 1210–17. http://dx.doi.org/10.1098/rspb.2011.1411.

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Increased algal blooms are a threat to aquatic ecosystems worldwide, although the combined effects of multiple stressors make it difficult to determine the underlying causes. We explore whether changes in trophic interactions in response to declining calcium (Ca) concentrations, a water quality issue only recently recognized in Europe and North America, can be linked with unexplained bloom production. Using a palaeolimnological approach analysing the remains of Cladocera (herbivorous grazers) and visual reflectance spectroscopically inferred chlorophyll a from the sediments of a Nova Scotia (C

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Huang, Yawen, Yong Pang, Guoxiang Wang, et al. "Using PAC-modified clays to control black-bloom-induced black suspended matter in Lake Taihu: deposition and resuspension of black matter/clay flocs." Water Supply 16, no. 1 (2015): 180–85. http://dx.doi.org/10.2166/ws.2015.126.

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Flocculation using modified clays is a technique widely applied in the management of harmful algal blooms (HABs). Polyaluminum chloride (PAC) modified clay is an efficient flocculating agent in HAB control; however its effectiveness in black bloom management is still largely unknown. In the present study, PAC-modified clay was used to flocculate a black bloom under simulated flows. The deposition and resuspension of the black matter/clay flocs and the impact of the spreading of quartz sand to the flocs were quantitatively studied. The results showed that a dosage of 1.8 g/L PAC-modified clay (

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Shoaib Shariati. "Algal bloom inhibition through cobalt nano particles to control Oscillatoria growth in fresh water lakes." GSC Advanced Research and Reviews 3, no. 2 (2020): 031–38. http://dx.doi.org/10.30574/gscarr.2020.3.2.0035.

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Purcell, Diane, Simon A. Parsons, Bruce Jefferson, et al. "Experiences of algal bloom control using green solutions barley straw and ultrasound, an industry perspective." Water and Environment Journal 27, no. 2 (2012): 148–56. http://dx.doi.org/10.1111/j.1747-6593.2012.00338.x.

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Tan, Yi, Jia Li, Linglei Zhang, Min Chen, Yaowen Zhang, and Ruidong An. "Mechanism Underlying Flow Velocity and Its Corresponding Influence on the Growth of Euglena gracilis, a Dominant Bloom Species in Reservoirs." International Journal of Environmental Research and Public Health 16, no. 23 (2019): 4641. http://dx.doi.org/10.3390/ijerph16234641.

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The effects of hydrodynamics on algae growth have received considerable attention, and flow velocity is one of the most frequently discussed factors. For Euglena gracilis, which aggregates resources and is highly resistant to environmental changes, the mechanism underlying the impact of flow velocity on its growth is poorly understood. Experiments were conducted to examine the response of algae growth to different velocities, and several enzymes were tested to determine their physiological mechanisms. Significant differences in the growth of E. gracilis were found at different flow velocities,

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Park, Myung-Hwan, Keonhee Kim, and Soon-Jin Hwang. "Differential Effects of the Allelochemical Juglone on Growth of Harmful and Non-Target Freshwater Algae." Applied Sciences 10, no. 8 (2020): 2873. http://dx.doi.org/10.3390/app10082873.

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Allelopathy has been applied to control nuisance algae in aquatic systems, but the effects of allelochemicals on the broad spectrum of algae are not well understood. We investigate algicidal effects of the allelochemical juglone on the bloom-forming, harmful algae Microcystis aeruginosa and Stephanodiscus hantzschii, and on several non-target algal species including cyanobacteria (Anabaena flos–aquae, Oscillatoria curviceps, and Phormidium subfuscum), diatoms (Asterionella formosa, Fragilaria crotonensis, and Synedra acus), and green algae (Chlorella vulgaris, Scenedesmus ecornis, and Scenedes

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