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Letteratura scientifica selezionata sul tema "Aquatic plants"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 31 luglio 2024

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Articoli di riviste sul tema "Aquatic plants"

Cota-Sánchez, J. Hugo, e Kirsten Remarchuk. "An Inventory of the Aquatic and Subaquatic Plants in SASKWater Canals in Central Saskatchewan, Canada, Before and After the Application of the Herbicide Magnacide". Canadian Field-Naturalist 121, n. 2 (1 aprile 2007): 164. http://dx.doi.org/10.22621/cfn.v121i2.441.

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This study focuses on the floristic composition of aquatic and semi-aquatic plants in the SASKWater canal system and their potential effect on irrigation systems. A checklist, evaluation, and synthesis of the species identified in this survey before and after the application of the herbicide Magnacide are provided, in addition to a brief discussion of the environmental effects of Magnacide. Thirty-three species in 26 genera within 20 plant families were identified. Two unidentified green algae were also collected. Common aquatics (i.e., green algae, Potamogeton spp., Alisma gramineum, A. plantago-aquatica, Ceratophyllum demersum, and Myriophyllum sibiricum) combined with debris from terrestrial plants were the primary contributors to blockage of irrigation drains. In general, the concentration of Magnacide used in this study had a minor effect on aquatic plant diversity, but effectively reduced plant density. However, the long-term effects of pesticides on the surrounding aquatic and terrestrial environments of the SASKWater irrigation system are unknown.

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Singh, Sangeeta. "Insights in Medicinal Value of Aquatic Plants Eichhornia Crassipes, Ipomoea Aquatica, and Hydrilla Verticillata: Potential Therapeutics in Drug Design and Discovery". African Journal of Biological Sciences 6, Si4 (5 luglio 2024): 2097–106. http://dx.doi.org/10.48047/afjbs.6.si4.2024.2097-2106.

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Plants play a pivotal role in human medicine, offering a vast array of bioactive compounds with therapeutic properties. As the main producers in most water habitats, aquatic plants are crucial. Though the aquatic habitat is rich in plant species, little research has been done on their medicinal potential. Some studies studied aquatic flora's ethno-medicinal, economic, and edible functions. Aquatic plants contain unique biological properties that could be used in agriculture, ornamentation, nutraceuticals, horticulture, and medicine. Aquatic plants, such as Eichhornia crassipes, Ipomoea aquatica, and Hydrilla verticillata, possess valuable effects like antimicrobial, antitumor, and antioxidant effects. Despite their potential, aquatic plants have often been undervalued, and more work required to fully explore their medicinal properties in various regions. In this review aquatic plants from India which is calmed to cure various diseases in Indian system of medicine. Moreover, the present review highlights the therapeutic potential of above three aquatic plants, urging researchers to evaluate their medicinal effectiveness and consider their applicability in medical fields.

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Indriani, Rafiatun, Yani Hadiroseyani, Iis Diatin e Media Fitri Isma Nugraha. "The The Growth Performance and Physiological Status of Comet Goldfish (Carassius auratus) in Aquascape System with Different Aquatic Plant Species". Jurnal Akuakultur Indonesia 22, n. 1 (10 febbraio 2023): 36–46. http://dx.doi.org/10.19027/jai.22.1.36-46.

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This study aimed to evaluate the physiological performance and status of comet goldfish (Carassius auratus) in aquascape system with different aquatic plant species. Comet goldfish (6.5 ± 0.073 cm length and 9.1 ± 0.1 g weight in average) were reared in aquaria with 10 fish/L density per aquarium for 45 days. The results obtained a positive correlation between SR value and SGR value, followed by a significant different value among the treatments applied (P<0.05). Based on the total chromatophore cells, comet goldfish reared in aquarium containing aquatic plants had a significant different (P<0.05) on the total chromatophore cells compared to aquarium without aquatic plants (control). After blood glucose test, comet goldfish reared with aquatic plants consistently showed a lower blood glucose level than without aquatic plants. The liver SOD level of comet goldfish obtained a significant different value between fish reared with aquatic plants and without aquatic plants, while the MDA value on all treatments was insignificantly different. Also, increased total erythrocytes, total leucocytes, hemoglobin, and hematocrit were found on comet goldfish reared with aquatic plants. This study concludes that aquatic plants in rearing system can improve the survival rate, specific growth rate, health status of comet goldfish due to mutualistic symbiosis discovered between fish and aquatic plants. Key words: aquatic plants, comet goldfish, growth performance, and health status.

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Elakovich, Stella D. "Allelopathic aquatic plants for aquatic weed management". Biologia Plantarum 31, n. 6 (novembre 1989): 479–86. http://dx.doi.org/10.1007/bf02876221.

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Sudipta, I. Gusti Made, I. Wayan Arthana e Endang Wulandari Suryaningtyas. "Kerapatan dan Persebaran Tumbuhan Air di Danau Buyan Kabupaten Buleleng, Provinsi Bali". Journal of Marine and Aquatic Sciences 6, n. 1 (11 settembre 2020): 67. http://dx.doi.org/10.24843/jmas.2020.v06.i01.p09.

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The Bali province has four lakes, one of them is Buyan lake. One of communities that has important roles in lake waters ecosystem as an primary production is a community of aquatic plants. The existence of aquatic plants as weed will suffer losses more than the beneficial. So that research on density and distribution of aquatic plants in Buyan lake is very important to do. The research aims to find out the density, distribution, domination, percent of closure and other types of aquatic plants in Buyan lake. This research was conducted for 1 month during the month of March until April 2017. The value of the density of the population (KP) aquatic plants has ranged from 2-357 individuals/m2. The value of the frequency of attendance (FK) aquatic plants ranging between 0,1-1. Morisita Index (Id) has ranged from 4,9-1,39 which shows a pattern of clumped. The value of Dominance (D) aquatic plants has ranged between 0,0001-0,9823 that showed with its low variation and high abundance. The value of aquantic plant cover has percent range from 1-72% that showed of the vegetation very rare, rare and dense. The aquatic plants found during research had 4 types of living that were type of free float (Free Floating) Salvinia molesta, Eichhornia crassipes (Submerged) Myriophyllum aquaticum, (Floating) Alternanthera philoxeroides, sticking (Emergent) Schoenoplectus paludicola, Phragmites australis, Typha capensis.

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Volin, Valeria C. "Southern Aquatic Plants CD". Economic Botany 57, n. 2 (aprile 2003): 292. http://dx.doi.org/10.1663/0013-0001(2003)057[0292:sapc]2.0.co;2.

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Cook, Christopher D. K. "Aquatic plants of Japan". Aquatic Botany 49, n. 4 (marzo 1995): 277–78. http://dx.doi.org/10.1016/0304-3770(95)90024-1.

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GOLDMAN, J. C. "Aquatic Plants: Phytoplankton Ecology." Science 234, n. 4777 (7 novembre 1986): 767–68. http://dx.doi.org/10.1126/science.234.4777.767.

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Sipple, Bill. "Aquatic plants Preston, C.D. and J.M. Croft. Aquatic plants in Britain and Ireland". Wetlands 18, n. 2 (giugno 1998): 305–6. http://dx.doi.org/10.1007/bf03161666.

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Adamec, Lubomir, e Kamil Pasek. "Photosynthetic CO2 affinity of aquatic carnivorous plants growing under nearly-natural conditions and in vitro". Carnivorous Plant Newsletter 38, n. 4 (1 dicembre 2009): 107–13. http://dx.doi.org/10.55360/cpn384.la235.

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Net photosynthetic rate of aquatic carnivorous plants in standing waters can sometimes be limited by low concentration of free CO2. As net photosynthetic rate of terrestrial plants growing in vitro is greatly reduced, as compared to the same plants grown naturally, it could be assumed that photosynthetic CO2 affinity in aquatic carnivorous plants growing in vitro will be reduced. The aim of this study was to compare values of CO2 compensation point of photosynthesis in several strains of Aldrovanda vesiculosa and in 13 aquatic Utricularia species, both in plants growing under nearly-natural conditions in containers or aquaria and in vitro. The dependence of CO2 compensation point on growth conditions is discussed.

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Più fonti

Tesi sul tema "Aquatic plants"

Tront, Jacqueline Marie. "Plant Activity and Organic Contaminant Processing by Aquatic Plants". Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/5234.

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This research explored fate of organic contaminants in aquatic plant systems through (i) experimental development of relationships to describe sorption, uptake and enzymatic processing of contaminants by plants and inhibition of aquatic plants by contaminants and (ii) incorporation of experimental relationships into a conceptual model which describes contaminant fate in aquatic plant systems. This study focused on interactions of aquatic plants L. minor and M. aquaticum with halogenated phenols. 2,4,5-trichlorophenol (2,4,5-TCP) and 2,4-dichlorophenol (2,4-DCP) are precursors for the highly toxic and heavily applied herbicides 2,4,5-T and 2,4-D and were examined in detail. Chlorophenols are generally resistant to microbial degradation, a property which may limit microbial remediation options as effective alternatives for clean up of contaminated sites. Relationships for fundamental interactions between plants and contaminants that dictate uptake, enzymatic processing and sequestration of contaminants by aquatic plants were established. An assay which quantified production of oxygen by plants was developed to quantify plant metabolic activity and inhibition. Uptake of chlorinated phenols depended on plant activity and aqueous phase concentration of contaminant in the protonated form. Therefore, plant activity, contaminant pKa and media pH were established as critical parameters controlling rate of contaminant uptake. A conceptual model was developed which incorporated plant activity and inhibition into a mathematical description of uptake of organic contaminants by aquatic plants. The conceptual model was parameterized using experimental data delineating effect of plant activity, inhibition and speciation on contaminant uptake and the model was verified using independently gathered data. Experimentation with radio-labeled chlorinated phenols established that contaminants were sequestered internal to plants by plant enzymatic processing. 19F NMR was established as a technique to quantify transformation and conjugation products internal to plants and contaminant assimilation by plants and demonstrated that multiple metabolites containing the parent compound were present and quantifiable internal to plants. Finally, fate of plant-sequestered contaminants in an anaerobic bioassay was examined using Desulfitobacterium sp. strain Viet1. The results of this study address the role of aquatic plants in sequestration of contaminants in surface waters that indicate the potential and limitations of use of aquatic plants in natural and engineered treatment systems.

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Poli, Delci Magalhães. "Leitos cultivados utilizando crostas de eletrofusão da bauxita". [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/286836.

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Orientador: José Teixeira Filho
Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Geociências
Made available in DSpace on 2018-08-22T23:02:36Z (GMT). No. of bitstreams: 1 Poli_DelciMagalhaes._M.pdf: 7037560 bytes, checksum: a3c49fdccdd6e0ddac9ecf51ba79b687 (MD5) Previous issue date: 2012
Resumo: O trabalho foi desenvolvido no campo experimental da Faculdade de Engenharia Agrícola da Universidade Estadual de Campinas, Campinas, SP, posição geográfica definida pelas coordenadas 22° 53' 22" LS e 47° 044' 39" LW. O estudo procurou verificar se a utilização de crostas de eletrofusão da bauxita como substrato, em leitos cultivados construídos ou "Constructeds Wetlands" com os vegetais aquáticos emergentes Typha sp, Canna limbata e Cyperus prolifer, interfere na dinâmica do pH, fósforo e nitrogênio presentes em águas residuárias domésticas. Foram utilizados 6 tanques artificiais, sendo constituído por 3 séries de duas unidades, com fluxo vertical e saídas subsuperficiais, nominados por série Typha, leitos 3.1 e 3.2; série Canna, leitos 2.1 e 2.2; série Cyperus 1.1 e 1.2 e preenchidos com crostas de eletrofusão da Bauxita. A dimensão de cada tanque é de 4 metros de comprimento por 3 metros de largura por 1 metro de altura, totalizando 12 m³. Em cada uma das séries foram plantados os vegetais Typha sp, Canna limbata e Cyperus prolifer respectivamente. O período de monitoramento foi de setembro de 2009 a fevereiro de 2010. O desempenho do foi avaliado considerando o desenvolvimento dos vegetais, quantidades e qualidades químicas das águas residuárias. As águas foram coletadas semanalmente, em dias aleatórios, nas entradas e saídas dos tanques durante o período monitorado; os vegetais foram colhidos, somente uma vez, no final do período. As vazões médias diárias e os pH médios ocorridos no período monitorado, observados no afluente e nas saídas da série Typha foram 962 l/dia, 864 l/dia e 804 l/dia; os pH foram 6,9; 8,6 e 9,0. Na série Canna as vazões foram 954 l/dia, 797 l/dia e 735 l/dia; os pH foram 6,9; 9,2 e 9,3. Na série Cyperus as vazões foram 792 l/dia, 723 l/dia e 664 l/dia; os pH foram 6,9; 9,0 e 9,1. Os tempos de detenções hidráulicas, considerando os leitos nas séries citadas foram: 4,2 dias e 4,6 dias; 4,0 dias e 4,6 dias e 4,3 dias e 4,4 dias. As porcentagens médias de retenções de nitrogênio total nos leitos, considerando as massas que entraram, por intermédio dos afluentes, durante o período monitorado foram: a) Série Typha 27% e 19%; b) Série Canna 35% e 19%; c) Série Cyperus 32% e 21%. As remoções realizadas pelos vegetais foram: a) Série Typha 26% e 9%; b) Série Canna 42% e 11%; Série Cyperus 22% e 15%. Em relação ao fósforo, as porcentagens médias de retenções, considerando as massas que entraram nos leitos por meio dos afluentes, foram: a) Série Typha 70% e 31%; b) Série Canna 73 e 19%; Série Cyperus 74% e 27%. As remoções realizadas pelos vegetais foram: a) Série Typha 11% e 4%; b) Série Canna 17% e 4%; c) Série Cyperus 7% e 11%. As massas vegetais totais secas produzidas foram: a) Série Typha 39,9 Kg e 11.2 Kg; b) Série Canna 50,5 Kg e 26,4 Kg; Série c) Cyperus 24 Kg e 15 Kg. O estudo mostrou que o substrato promoveu alterações na eficiência e eficácia da retenção e remoção de nutriente, crescimentos dos vegetais, produção de matéria seca e qualidades da água efluente
Abstract: The study was conducted in the experimental field of the Faculty of Agricultural Engineering, State University of Campinas, Campinas, SP, geographical position defined by coordinates 22° 53' 22" LS and 47° 04' 39" LW. The study examined whether the use of bauxite electrofusion crusts, as a substrate in constructed wetlands with emergent vegetables Typha sp, Canna limbata and Cyperus prolifer, interferes on the dynamics of pH, phosphorus and nitrogen present in domestic wastewater. It was used 6 artificial beds, consisting of 3 sets of two units with vertical flow and subsurface outflows, nominated by Typha series, 3.1 and 3.2 beds; series Canna, 2.1 and 2.2 beds, series Cyperus, 1.1 and 1.2 and filled with Bauxite electrofusion crusts. The size of each bed was 4 meters long by 3 meters wide by 1 meter high, totaling 12 m³. In each series the vegetables Typha sp, Canna limbata and Cyperus prolifer were planted respectively. The monitoring period was from September 2009 to February 2010. The performance was evaluated considering the development of plants, the chemical quantities and qualities of wastewater. The waters were collected weekly, on random days, at the entrances and exits of the beds during the monitoring period; the plants were harvested only once, at the end of each period. The average daily flow rates and average pH occurred during this period, observed in the tributary and the outflow of the series Typha were 962 l/day, 864 l/day and 804 l/day, the pH were 6.9, 8.6 and 9.0. In the series Canna flow rates were 954 l/day, 797 l/day and 735 l/day, the pH were 6.9, 9.2 and 9.3. In the series Cyperus flow rates were 792 l/day, 723 l/day and 664 l/day, the pH were 6.9, 9.0 and 9.1. The hydraulic detention time, considering the beds in the series cited were 4.2 days and 4.6 days, 4.0 days and 4.6 days and 4.3 days and 4.4 days. The average percentage of total nitrogen retention in the beds, considering the masses that came through the tributaries during the monitoring period was: a) Series Typha 27% e19% b) Series Canna 35% and 19%, c) Series Cyperus 32% and 21%. The removals conducted by the plants were : a) Series Typha 26% and 9%, b) Series Canna 42% and 11%; Series Cyperus 22% and 15%. Regarding the phosphorus, the average percentage of retention, considering the masses that entered the bed through the tributaries was: a) Series Typha 70% and 31%, b) Canna Series 73 and 19%; Series Cyperus 74% and 27 %. The removals conducted by the plant were: a) Series Typha 11% and 4%, b) Series Canna 17% and 4%, c) Cyperus Series 7% and 11%. The total dry plant mass produced were: a) Series Typha 39.9 Kg is 11.2 Kg b) Series Canna 50.5 kg is 26.4 kg; Series c) Cyperus 24 Kg is 15 Kg. The study has shown that the substrate promoted changes in the efficiency and effectiveness of nutrient removal and retention, growth of vegetables, dry material production and quality of effluent water
Mestrado
Análise Ambiental e Dinâmica Territorial
Mestre em Geografia

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Spósito, Thadeu Henrique Novais. "Matéria seca e acúmulo de nutrientes no aguapé utilizado para fitorremediação em águas residuárias de suinocultura /". Ilha Solteira, 2018. http://hdl.handle.net/11449/180866.

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Orientador: Marcelo Carvalho Minhoto Teixeira Filho
Resumo: As águas residuárias de suinocultura (ARS) são consideradas um grande problema de cunho ambiental. Porém o aguapé (Eichhornia crassipes) parece ter uma capacidade de adaptação em meios com alta concentração da ARS, o que pode ser interessante para diminuir os nutrientes e as cargas orgânicas das ARS, cujo destino são mananciais ou até mesmo lagoas conhecidas como sumidouros, causando problemas ambientais, como a eutrofização. Neste sentido, objetivou-se analisar o polimento de água residuária de suinocultura em diferentes concentrações, por meio do cultivo de aguapé, determinou-se a concentração de elementos químicos presentes na ARS, assim como o acúmulo destes elementos na matéria seca e produção desta macrófita. O experimento foi conduzido na área experimental da ETEC (Colégio Agrícola) de Presidente Prudente - SP. Utilizou-se o delineamento experimental inteiramente casualizado, com parcelas subdivididas e cinco repetições. As parcelas constituíram de três tratamentos (água potável “Testemunha”, diluição de 50% ARS e 100% ARS) e subparcelas com cinco períodos de coleta da ARS para análise química [0 (caracterização), 7, 14, 21 e 28 dias], sendo a coleta das plantas de aguapé realizada aos 28 dias, junto a última coleta da ARS. O cultivo de aguapé em 100% de ARS proporcionou maior absorção de nutrientes, desenvolvimento e acúmulo de matéria seca desta macrófita aquática, reduzindo gradativamente conforme vai diminuindo a concentração da ARS. Recomenda-se o cultivo do aguap... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: Swine wastewater (SWW) is considered to be a major environmental problem, but water hyacinth (Eichhornia crassipes) seems to have a capacity for adaptation in environments with high concentration of the same, which may be interesting to reduce nutrients and loads organic matter of this material, the destination of which are fountains or even ponds known as sinks, causing environmental problems such as eutrophication. In this sense, the aim of this study was to analyze the polishing SWW in different concentrations, by the E. crassipes crop, was determined the concentration of chemical elements present in the SWW, as well as the accumulation of these elements in the dry matter and production of this macrophyte. The experiment was conducted in the experimental area of the ETEC (Agricultural College) of Presidente Prudente - SP, Brazil. We used the fully randomized experimental design with split plots and five replications. The plots consisted of three treatments ("Witness" drinking water, 50% of SWW and 100% of SWW dilution) and the five-period ARS collection periods for chemical analysis [0 (characterization), 7, 14, 21 and 28 days]. The collection of the E. crassipes plants was carried out at 28 days along with the last SWW collection. The E. crassipes cropped in 100% SWW provided greater nutrient uptake, plant development and dry matter accumulation of this aquatic macrophyte, reducing gradually as the SWW concentration decreases. It is recommended the E. crassipes crop in SW... (Complete abstract click electronic access below)
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Reeves, Justin. "Plant Finding Behavior of Phytophagous Insects and Biological Control of Aquatic Plants". Kent State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=kent1285168402.

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Göthberg, Agneta. "Metal fate and sensitivity in the aquatic tropical vegetable Ipomoea aquatica". Doctoral thesis, Stockholms universitet, Institutionen för tillämpad miljövetenskap (ITM), 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-7625.

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The aquatic plant Ipomoea aquatica is a popular vegetable in Southeast Asia, often cultivated in nutrient rich and polluted waters. The overall aim of this thesis was to estimate potential risks for human health and reduced plant growth due to accumulation and toxicity of total-Hg, methyl-Hg, Cd and Pb. In plants from cultivations in Thailand, the concentrations of Cd and Pb in the shoots were well beneath recommended maximum values for human consumption, but at some sites the Hg concentrations were high. It was demonstrated that I. aquatica has the capacity to accumulate much higher Cd and Pb concentrations in the shoots than found in field-cultivations, before exhibiting toxic symptoms. The Hg concentrations, however, occasionally reached levels that are toxic for the plant. Up to11% of total-Hg was methyl-Hg, the most toxic Hg species, though at one site it was 50-100%. To study if methyl-Hg is formed in I. aquatica, plants were exposed to inorganic Hg through the roots. Of the Hg that reached the young, metabolically active parts of the shoots, a part was transformed to methyl-Hg. A major proportion of absorbed metals was retained in the roots, which had a high tolerance for high internal metal concentrations. The nutrient level did influence accumulation and effects of Hg, Cd and Pb in I. aquatica. Low external nutrient levels resulted in increased metal accumulation in the shoots and in metal-induced toxic effects in the plant at low external metal levels. A generous supply of sulphur or nitrogen induced formation of thiol-rich peptides in I. aquatica, compounds that have a metal detoxifying effect in plants. To conclude, the levels of Cd and Pb in field cultivated I. aquatica do not pose any apparent threat to human health or risk for reduced plant growth. The levels of Hg however, were high at some sites and could be a health threat, for children and foetuses in particular, and especially considering the presence of methyl-Hg. The use of fertilizers is favourable as it reduces the risk for increased metal concentrations in I. aquatica and for reduced crop yields.

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White, Sean D. "Internal pressurisation and convective flow in two species of emergent macrophyte; Typha domingensis and Phragmites australis /". Title page, contents and summary only, 1999. http://web4.library.adelaide.edu.au/theses/09PH/09phw5877.pdf.

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MacFarlane, Jeffrey Julius. "Diffusion, boundary layers and the uptake of nutrients by aquatic macrophytes /". Title page, contents and summary only, 1985. http://web4.library.adelaide.edu.au/theses/09PH/09phm1431.pdf.

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Sabet, Mitra Deliri, e n/a. "Aquatic plants as indicators of heavy metal contamination". University of Canberra. Resource, Environmental & Heritage Sciences, 1997. http://erl.canberra.edu.au./public/adt-AUC20061107.161814.

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Concentrations of heavy metals (Cu, Cd, Cr, Zn, Mn, Fe and Pb) in the water columns, aquatic plants and sediments of fourteen lakes of varied levels of pollution were measured. Correlation analysis was carried out between heavy metal concentrations in aquatic plants and heavy metal concentrations in water and sediment. The aquatic plants which accumulated heavy metals in their tissues in proportion to that in water and sediments were identified. The aquatic plants studied were: 8/yxa auberti Rich, Cabomba caroliniana Gray, Ceratophyllum demersum L, Ceratopteris thalictroides (L.) Bron, Chara globularis, Eichhornia crassipes Solmn, Hydrilla verticillata Royle, Ipomoea aquatica Forsk, Limnophila aromatica (Lam.) Merr., Ludwigia adscendens (L) Hara, Nelumbo nucifera Gaertn, Nymphaea stallata Linn, Nymphoides indica (L.) Kuntze, Typha angustata Bony & Chaub and Utricularia aurea Lour. Metal uptake by aquatic plants varied between different species and within the same species depending on lake water contamination levels. The level of metal uptake to a great extent was a function of the environment water metal concentration. Results showed that Utricularia accumulated Mn, Zn, Cr, Cd and Pb in direct proportion to the overlying waters (r2 = 0.69, 0.63, 0.69, 0.65 and 0.39 respectively). Hydrilla accumulated Cu, Mn, Zn, Fe, Cr, Cd and Pb in direct proportion to the overlying waters (r2 = 0.65, 0.66, 0.44, 0.72, 0.38, 0.63, and 0.73 respectively). Blyxa leaves accumulated Zn, Fe, Cr, Cd and Pb in direct proportion to the overlying waters (r2 = 0.74, 0.74, 0.72, 0.60 and 0.82 respectively). Echhornia leaf accumulated only Cr in direct proportion to the overlying waters r2 = 0.81. Nymphaea leaf and Chara did not accumulate any metal in direct proportion to the overlying waters. Roots of Blyxa auberti, Ceratopteris thalictroides, and Eichhornia crassipes contained higher concentrations of heavy metals than their leaves. Roots of Blyxa accumulated Cr, Cd and Pb in direct proportion to the overlying waters (r2 = 0.91, 0.65 and 0.69 respectively). Echhornia root accumulated Cd in direct proportion to the overlying waters with r2 = 0.90. Nymphaea stem showed no significant correlations between the metal concentrations in the waters and in the plant. Utricularia accumulated Zn, Fe, Cr, Cd and Pb in direct proportion to the metals in the underlying sediment extracted by cold hydrochloric acid (r2 = 0.84, 0.51, 0.47, 0.68 and 0.80 respectively). Hydrilla accumulated Cu, Zn, Cr, Cd and Pb in direct proportion to the underlying sediment (r2 = 0.34, 0.37, 0.91, 0.49 and 0.96 respectively). Blyxa accumulated Zn, Fe, Cr, Cd and Pb in direct proportion to the underlying sediments (r2 = 0.99, 0.61, 0.82, 0.75 and 0.64 respectively) . Echhornia leaf showed significant correlation between the Cu (r2 = 0.83) and Cr (i2 = 0.88) concentration in underlying sediment and the plant. Nymphaea leaf showed a significant correlation between the Zn (r2 = 0.83) concentration in the plant and the underlying sediments. Roots of Blyxa showed significant correlation between concentrations of Cu, Cr and Pb in sediment extracted by hydrochloric acid and plant (r2 = 0.9, 0.7 and 0.9 respectively). Roots of Echhornia had no significant correlation with the sediment metal concentrations (hydrochloric acid extractable). Two techniques (cold hydrochloric acid extractable and nitric acid extractable) to extract metals from sediment were compared. Based on correlations of metal concentrations in plant tissue and metal extracted from the sediment, it was concluded that the cold hydrochloric acid extractable metal technique is more suitable for determining bioavailable sediment metal concentration in environmental studies. Laboratory studies investigations on the bioaccumulation of Zn and Cu in Hydrilla confirmed that Hydrilla is a good bioindicator of Cu as it accumulated 20360 ug/g dry weight of Cu in 72 hours. Hydrilla showed higher bioaccumulation factor with low concentration of Cu in the solution, in the laboratory studies. Hydrilla was determined to be the best indicator species as it reflected the heavy metal concentration in the environment which was supported by the laboratory studies.

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Forster, Rodney Malcolm. "The control of photosynthetic capacity in aquatic plants". Thesis, Queen's University Belfast, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317439.

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Littles, Chanda Jones. "Effects of rapid salinity change on submersed aquatic plants". [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0011820.

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Libri sul tema "Aquatic plants"

Lall, Namrita, a cura di. Aquatic Plants. Boca Raton, FL : CRC Press, 2020.: CRC Press, 2020. http://dx.doi.org/10.1201/9780429429095.

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Spencer-Jones, David. Aquatic plants. Farnham, Surrey: ICI Professional Products, 1986.

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Bachheti, Archana, Rakesh Kumar Bachheti e Azamal Husen. Aquatic Medicinal Plants. Boca Raton: CRC Press, 2023. http://dx.doi.org/10.1201/9781003256830.

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Michael, Quigley. Herbaceous flowering aquatic plants. Oxford: Blackwell, 1986.

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Nelson, Edward N. Aquatic plants of Oklahoma. Tulsa, OK]: Oral Roberts University, 1985.

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Schenck, H. The biology of aquatic plants. Ruggell: A.R.G. Gantner, 2003.

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Schenck, H. The biology of aquatic plants. Ruggell: A.R.G. Gantner, 2003.

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Abbasi, S. A. Wastewater treatment with aquatic plants. Roorkee: INCOH Secretariat, 1995.

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Curtis, Linda. Aquatic plants of Northeastern Illinois. [Lake Villa? Ill.]: L. Curtis, 1998.

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Parsons, Jenifer. Aquatic plant sampling protocols. Olympia, Wash: Washington State Dept. of Ecology, Environmental Assessment Program, 2001.

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Capitoli di libri sul tema "Aquatic plants"

Hellström, Thomas, Rhodes W. Fairbridge, Lars Bengtsson, Barbara Wohlfarth, Reginald W. Herschy, Anders Hargeby, Irmgard Blindow et al. "Aquatic Plants". In Encyclopedia of Lakes and Reservoirs, 39–42. Dordrecht: Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-1-4020-4410-6_42.

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Pott, Vali Joana, e Arnildo Pott. "Aquatic Plants". In Flora and Vegetation of the Pantanal Wetland, 229–88. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-83375-6_4.

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Szuman, Karina M., Analike Blom van Staden, Bonani Madikizela e Namrita Lall. "An Introduction to Aquatic Plants". In Aquatic Plants, 1–7. Boca Raton, FL : CRC Press, 2020.: CRC Press, 2020. http://dx.doi.org/10.1201/9780429429095-1.

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Szuman, Karina M., Mala V. Ranghoo-Sanmukhiya, Joyce Govinden-Soulange e Namrita Lall. "Aquatic Plants Native to Africa". In Aquatic Plants, 9–35. Boca Raton, FL : CRC Press, 2020.: CRC Press, 2020. http://dx.doi.org/10.1201/9780429429095-2.

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De Canha, Marco Nuno, Danielle Twilley, B. Venugopal Reddy, SubbaRao V. Madhunapantula, N. P. Deepika, T. N. Shilpa, B. Duraiswamy, S. P. Dhanabal, Suresh M. Kumar e Namrita Lall. "Aquatic Plants Native to Asia and Australia". In Aquatic Plants, 37–120. Boca Raton, FL : CRC Press, 2020.: CRC Press, 2020. http://dx.doi.org/10.1201/9780429429095-3.

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Fibrich, Bianca D., Jacqueline Maphutha, Carel B. Oosthuizen, Danielle Twilley, Khan-Van Ho, Chung-Ho Lin, Leszek P. Vincent et al. "Aquatic Plants Native to America". In Aquatic Plants, 121–239. Boca Raton, FL : CRC Press, 2020.: CRC Press, 2020. http://dx.doi.org/10.1201/9780429429095-4.

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Lambrechts, Isa A., Lydia Gibango, Antonios Chrysargyris, Nikolaos Tzortzakis e Namrita Lall. "Aquatic Plants Native to Europe". In Aquatic Plants, 241–90. Boca Raton, FL : CRC Press, 2020.: CRC Press, 2020. http://dx.doi.org/10.1201/9780429429095-5.

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Coles, Zane S., e Namrita Lall. "Sustainable Production of Aquatic and Wetland Plants". In Aquatic Plants, 291–329. Boca Raton, FL : CRC Press, 2020.: CRC Press, 2020. http://dx.doi.org/10.1201/9780429429095-6.

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Abate, Limenew, Archana Bachheti, Mesfin Getachew Tadesse, D. P. Pandey, Azamal Husen e Rakesh Kumar Bachheti. "Chemical Composition and Biological Activity of Red Algae (Rhodophyta)". In Aquatic Medicinal Plants, 251–64. Boca Raton: CRC Press, 2023. http://dx.doi.org/10.1201/9781003256830-15.

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Gupta, Prakash Chandra, e Nisha Sharma. "An Overview of Traditional Uses and Pharmacological Profile of Sphaeranthus indicus". In Aquatic Medicinal Plants, 121–32. Boca Raton: CRC Press, 2023. http://dx.doi.org/10.1201/9781003256830-8.

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Atti di convegni sul tema "Aquatic plants"

Liu, Yu H., Chun L. Wu, Ting C. Hsu, Yun H. Huang e Li Chen. "Swinery Wastewater Purification Using Aquatic Plants". In World Water and Environmental Resources Congress 2001. Reston, VA: American Society of Civil Engineers, 2001. http://dx.doi.org/10.1061/40569(2001)476.

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Neidoni, Dorian-Gabriel, Valeria Nicorescu, Ladislau Andres, Monica Ihos e Carol Blaziu Lehr. "ACCUMULATION OF TOXIC METALS IN AQUATIC PLANTS". In International Symposium "The Environment and the Industry". National Research and Development Institute for Industrial Ecology, 2018. http://dx.doi.org/10.21698/simi.2018.ab30.

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Kumar, Kamlesh, e Deepu Prabhakaran. "Dynamics of aquatic plants interacting with waves". In OCEANS 2022, Hampton Roads. IEEE, 2022. http://dx.doi.org/10.1109/oceans47191.2022.9977056.

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Fu, Xiaoyun. "Phosphorus removal from wastewater by five aquatic plants". In 2015 3rd International Conference on Advances in Energy and Environmental Science. Paris, France: Atlantis Press, 2015. http://dx.doi.org/10.2991/icaees-15.2015.186.

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Gonçalves de Azevedo, Claudia, e Ruan Vitor Cortelassi da Cruz. "PRELIMINARY STUDY FOR OBTAINING BIOFUELS FROM AQUATIC PLANTS". In 26th International Congress of Mechanical Engineering. ABCM, 2021. http://dx.doi.org/10.26678/abcm.cobem2021.cob2021-1933.

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Raković, Maja, Nataša Popović, Bojana Tubić, Jelena Đuknić, Momir Paunović, Snežana Jarić e Uroš Živković. "INFLUENCE OF ALLOCHTHONOUS AQUATIC VEGETATION ON THE MACROINVERTEBRATE FAUNA OF THE CANAL NETWORK ON THE LEFT BANK OF THE DANUBE". In 53rd Annual Conference of the Serbian Water Pollution Control Society. SERBIAN WATER POLLUTION CONTROL SOCIETY, 2024. http://dx.doi.org/10.46793/voda24.065r.

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Aquatic plants include a complex group of different adaptable plant species that inhabit different water basins. They are the primary producers, the first link in the food chain, and all other life forms in the aquatic environment depend on them. On the other hand, overgrowth of the canal network with vegetation, especially with new, allochthonous species, has a major impact on the functionality of the system. The pumping stations and the sewer network as a system for protecting agricultural and urban units cannot respond adequately to the new challenges. Hydromorphological changes have a significant impact on the native flora and fauna of the area. Research into the interaction of aquatic plants and macroinvertebrate communities is not only of scientific importance, but also forms the basis for appropriate management of aquatic ecosystems. The aim of the work is to illustrate the changes in the biodiversity caused by the different maintenance of aquatic vegetation in the canal network of the left bank of the Danube.

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Nagarajan, Praveena, K. S. Sruthy, Veena P. Lal, Veena P. Devan, Anupama Krishna, Aarathi Lakshman, K. M. Vineetha, Ajith Madhavan, Bipin G. Nair e Sanjay Pal. "Biological treatment of domestic wastewater by selected aquatic plants". In 2017 International Conference on Technological Advancements in Power and Energy (TAP Energy). IEEE, 2017. http://dx.doi.org/10.1109/tapenergy.2017.8397350.

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Li, Shaopeng, Ligang Wang e Peizhen Chen. "The effects of purifying livestock wastewater by different aquatic plants". In 2013 International Conference on Materials for Renewable Energy and Environment (ICMREE). IEEE, 2013. http://dx.doi.org/10.1109/icmree.2013.6893757.

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Wu, Yihong, Baoligao Bai-Yin, Xiangpeng Mu, Shengzong Xie e Shuang Zheng. "Hydrodynamic characteristics in channel flow with submerged flexible aquatic plants". In The International Conference On Fluvial Hydraulics (River Flow 2016). Taylor & Francis Group, 6000 Broken Sound Parkway NW, Suite 300, Boca Raton, FL 33487-2742: CRC Press, 2016. http://dx.doi.org/10.1201/9781315644479-346.

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СЕРИКОВА, В. И. "ФОРМИРОВАНИЕ ЛАНДШАФТНО-ДЕКОРАТИВНЫХ ЭЛЕМЕНТОВ ИСКУССТВЕННОГО ВОДОЁМА НА БАЗЕ ЭКСПОЗИЦИИ "ВОДНЫЕ И ПРИБРЕЖНО-ВОДНЫЕ РАСТЕНИЯПРИРОДНОЙ ФЛОРЫ ЦЕНТРАЛЬНОГО ЧЕРНОЗЕМЬЯ" В БОТАНИЧЕСКОМ САДУ ВОРОНЕЖСКОГО ГОСУНИВЕРСИТЕТА". In ПРОБЛЕМЫ ИНТРОДУКЦИИ РАСТЕНИЙ И СОХРАНЕНИЯ БИОЛОГИЧЕСКИХ РЕСУРСОВ. Voronezh State University, 2023. http://dx.doi.org/10.17308/978-5-907669-40-6-2023-251.

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The characteristic of artificial phytocenose as a decorative element of landscape architecture is presented in the paper. The basic environmental principles to create of exposition "Water and coastal aquatic plants of the natural flora of the Central Chernozem" are investigated. A scientifically based list of species of aquatic and coastal aquatic plants of natural flora for the creation of floral and decorative compositions in the conditions of the Middle Band is provided. A set of basic agrotechnical measures necessary for the normal functioning of artificial water cenosis is also proposed.

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Rapporti di organizzazioni sul tema "Aquatic plants"

Westerdahl, Howard E., e Kurt D. Getsinger. Aquatic Plant Control Research Program: Aquatic Plant Identification and Herbicide Use Guide. Volume 2. Aquatic Plants and Susceptibility to Herbicides. Fort Belvoir, VA: Defense Technical Information Center, novembre 1988. http://dx.doi.org/10.21236/ada203243.

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Crosby, David, Brian Nerrie e Cynthia L. Gregg. Edible Aquatic Plants in Farm Ponds. Blacksburg, VA: Virginia Cooperative Extension, gennaio 2021. http://dx.doi.org/10.21061/cnre-127np.

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Herrel, Sherry L., Eric D. Dibble e K. J. Killgore. Foraging Behavior of Fishes in Aquatic Plants. Fort Belvoir, VA: Defense Technical Information Center, febbraio 2001. http://dx.doi.org/10.21236/ada392062.

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Larson, Gary E. Aquatic and wetland vascular plants of the northern Great Plains. Ft. Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1993. http://dx.doi.org/10.2737/rm-gtr-238.

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Mudge, Christopher, Glenn Suir e Benjamin Sperry. Unmanned aircraft systems and tracer dyes : potential for monitoring herbicide spray distribution. Engineer Research and Development Center (U.S.), ottobre 2023. http://dx.doi.org/10.21079/11681/47705.

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Chemical control of nuisance aquatic vegetation has long been the most widely utilized management tool due to its high level of efficacy, limited environmental impacts, and relatively low cost. However, unprecise application of herbicides can lead to uncontrolled invasive plants and unintended management costs. Therefore, precision herbicide delivery techniques are being developed to improve invasive plant control and minimize impacts to non-target plants. These technological advancements have the potential to enhance aquatic ecosystem protection from invasive species while reducing associated management costs. Despite the benefits of using registered herbicides for aquatic plant control in efforts to restore aquatic habitats, their use is often misunderstood and opposed by public stakeholders. This can lead to significant challenges related to chemical control of nuisance aquatic vegetation. Thus, US Army Corps of Engineers (USACE) Districts seek improved methods to monitor and quantify the distribution (i.e., amount of herbicide retained on plant foliage compared to those deposited into the water column) of herbicides applied in aquatic systems. Monitoring herbicide movement in aquatic systems can be tedious and costly using standard analytical methods. However, since the inert fluorescent tracer dye Rhodamine WT (RWT) closely mimics product movement in the aquatic environment it has been used as a cost-effective surrogate for herbicides tracing. The use of RWT (or other inert tracer dyes) can be an efficient way to quantify herbicide retention and deposition following foliar treatments. However, the collection of operational spray deposition data in large populations of invasive floating and emergent plant stands is labor intensive and costly. One proposed solution is the use of remote sensing methods as an alternative to traditional in situ samples. Specifically, using unmanned aircraft systems (UAS) in conjunction with RWT could provide more efficient monitoring and quantification of herbicide spray distribution and in-water concentrations when using RWT in combination with herbicides. A better understanding of UAS capabilities and limitations is key as this technology is being explored for improved and integrated management of aquatic plants in the U.S. This technical note (TN) provides a review of literature to assess the state of knowledge and technologies that can assist USACE Districts and partners with tracking herbicide movement (using RWT as a surrogate or additive), which could improve operational monitoring, thus reducing the level of uncertainty related to chemical applications and non-target impacts, and thus improve management in aquatic systems.

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Smart, R. M., e Gary O. Dick. Propagation and Establishment of Aquatic Plants: A Handbook for Ecosystem Restoration Projects. Fort Belvoir, VA: Defense Technical Information Center, febbraio 1999. http://dx.doi.org/10.21236/ada369779.

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Dick, Gary O., R. M. Smart e Lynde L. Dodd. Propagation and Establishment of Native Plants for Vegetative Restoration of Aquatic Ecosystems. Fort Belvoir, VA: Defense Technical Information Center, giugno 2013. http://dx.doi.org/10.21236/ada582960.

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Wersal, Ryan, Bradley Sartain, Kurt Getsinger, John Madsen, John Skogerboe, Justin Nawrocki, Robert Richardson e Morgan Sternberg. Improving chemical control of nonnative aquatic plants in run-of-the-river reservoirs. Engineer Research and Development Center (U.S.), marzo 2024. http://dx.doi.org/10.21079/11681/48350.

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Current dam discharge patterns in Noxon Rapids Reservoir reduce concentration and exposure times (CET) of herbicides used for aquatic plant management. Herbicide applications during periods of low dam discharge may increase herbicide CETs and improve efficacy. Applications of rhodamine WT dye were monitored under peak (736 to 765 m³ s⁻¹) and minimum (1.4 to 2.8 m³ s⁻¹) dam discharge patterns to quantify water-exchange processes. Whole-plot dye half-life under minimal discharge was 33 h, a 15-fold increase compared with the dye treatment during peak discharge. Triclopyr concentrations measured during minimum discharge within the treated plot ranged from 214 ± 25 to 1,243 ± 36 μgL⁻¹ from 0 to 48 h after treatment (HAT), respectively. Endothall concentrations measured during minimum discharge in the same plot ranged from 164 ± 78 to 2,195 ± 1,043 μgL⁻¹ from 0 to 48 HAT, respectively. Eurasian watermilfoil (Myriophyllum spicatum L.) occurrence in the treatment plot was 66%, 8%, and 14% during pretreatment, 5 wk after treatment (WAT), and 52 WAT, respectively. Myriophyllum spicatum occurrence in the nontreated plot was 68%, 71%, and 83% during pre-treatment, 5 WAT, and 52 WAT, respectively. Curlyleaf pondweed (Potamogeton crispus L.) occurrence in the treatment plot was 29%, 0%, and 97% during pretreatment, 5 WAT, and 52 WAT, respectively. Potamogeton crispus increased from 24% to 83% at 0 WAT to 52 WAT, respectively, in the nontreated plot. Native species richness declined from 3.3 species per point to 2.1 in the treatment plot in the year of treatment but returned to pretreatment numbers by 52 WAT. Native species richness did not change during the study in the nontreated reference plot. Herbicide applications during periods of low flow can increase CETs and improve control, whereas applications during times of high-water flow would shorten CETs and could result in reduced treatment efficacy.

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Owens, Chetta S., Michael J. Grodowitz e Fred Nibling. A Survey of the Invasive Aquatic and Riparian Plants of the Low Rio Grande. Fort Belvoir, VA: Defense Technical Information Center, aprile 2005. http://dx.doi.org/10.21236/ada433828.

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Owens, Chetta S., Michael J. Grodowitz e Fred Nibling. A Survey of the Invasive Aquatic and Riparian Plants of the Lower Rio Grande. Fort Belvoir, VA: Defense Technical Information Center, aprile 2005. http://dx.doi.org/10.21236/ada434539.

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