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1

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
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2

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<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Geociências<br>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<br>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 cros
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3

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<br>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 concentra
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4

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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5

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
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6

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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7

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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8

Sabet, Mitra Deliri, and 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 g
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9

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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10

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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11

Damiri, Basma. "Risk characterization for boron and aquatic plants and animals." Connect to this title online, 2007. http://etd.lib.clemson.edu/documents/1202498572/.

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12

Kelly, Wanda Jean. "Geometrical relationships specifying the phyllotactic pattern of aquatic plants." College Park, Md. : University of Maryland, 2008. http://hdl.handle.net/1903/8074.

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Thesis (M.S.) -- University of Maryland, College Park, 2008.<br>Thesis research directed by: Dept. of Cell Biology and Molecular Genetics. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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13

Lu, Qin. "Evaluation of aquatic plants for phytoremediation of eutrophic stormwaters." [Gainesville, Fla.] : University of Florida, 2009. http://purl.fcla.edu/fcla/etd/UFE0024791.

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14

Reinhold, Dawn Marie. "Fate of fluorinated organic pollutants in aquatic plant systems studies with lemnaceae and lemnaceae tissue cultures /." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/26506.

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Thesis (Ph.D)--Civil and Environmental Engineering, Georgia Institute of Technology, 2008.<br>Committee Chair: Saunders, F. Michael; Committee Member: Huang, Ching-Hua; Committee Member: Hughes, Joseph; Committee Member: Loeffler, Frank; Committee Member: Pullman, Gerald; Committee Member: Spain, Jim. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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15

Santana, Harrson Silva 1984. "Bioadsorção de íons de Cd2+, Cu2+, Pb2+ Ni2+ e Zn2+ pela macrófita aquática Limnobium spongia." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/266699.

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Orientadores: Meuris Gurgel Carlos da Silva, Sirlei Jaiana Kleinübing<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Química<br>Made available in DSpace on 2018-08-21T03:51:16Z (GMT). No. of bitstreams: 1 Santana_HarrsonSilva_M.pdf: 3086288 bytes, checksum: df57d56b5e16a94632301ad2849fb91b (MD5) Previous issue date: 2012<br>Resumo: Este trabalho teve como objetivo avaliar a bioadsorção dos íons Cd2+, Cu2+, Pb2+, Ni2+ e Zn2+ pela macrófita aquática Limnobium spongia em sistema estático. Diagramas de especiação em função do pH, foram simulados usando o s
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16

Larson, Daniel. "Non-indigenous freshwater plants : patterns, processes and risk evaluation /." Uppsala : Dept. of Environmental Assessment, Swedish University of Agricultural Sciences, 2007. http://epsilon.slu.se/200715.pdf.

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17

Ström, Emma. "Leachate treatment and anaerobic digestion using aquatic plants and algae." Thesis, Linköping University, Department of Water and Environmental Studies, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-57512.

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<p>Phytoremediation as a way to control and lessen nutrient concentrations in landfill leachate is a cheap and environmentally sustainable method. Accumulated nutrients in the plants can then be removed by harvesting and anaerobically digesting the biomass. This study presents two aquatic plants (L. minor (L.) and P. stratiotes (L.)) and one microalgae species (C. vulgaris (L.)), their capacities for growth and nutrient removal in leachate from Häradsudden landfill, Sweden, are investigated. The biogas potential of the two plants is determined via anaerobic digestion in a batch run, followed b
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18

Becker, Lindsey M. "Aquatic invertebrate, vegetation, and hydrology assessment of Long Meadow Lake prior to effects of hydrological manipulations /." Link to full text, 2007. http://epapers.uwsp.edu/thesis/2007/Becker.pdf.

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19

Nachtrieb, Julie G. Kennedy James H. "The impact of invertebrates to four aquatic macrophytes Potamogeton nodosus, P. illinoensis, Vallisneria americana and Nymphaea mexicana /." [Denton, Tex.] : University of North Texas, 2008. http://digital.library.unt.edu/permalink/meta-dc-9058.

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20

Begg, Fiona H. "Anthropogenic '1'4C in the natural (aquatic) environment." Thesis, University of Glasgow, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.300458.

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21

Souza, Clara Sampaio Dias de. "Levantamento floristico da restinga de Maraú, Sul do Estado da Bahia : chave interativa de entradas multiplas para identificação das plantas aquaticas e palustres." [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/315653.

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Orientadores: Maria do Carmo Estanislau do Amaral, Andre Marcio Araujo Amorin<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia<br>Made available in DSpace on 2018-08-11T23:14:54Z (GMT). No. of bitstreams: 1 Souza_ClaraSampaioDiasde_M.pdf: 29137311 bytes, checksum: ee98cc502c433070913564d6268045d7 (MD5) Previous issue date: 2008<br>Resumo: As restingas são áreas com vegetação bem estudada nas regiões sudeste e sul do Brasil, mas ainda faltam dados publicados sobre esses ambientes no norte e nordeste do país. Esses ecossistemas fazem parte do bioma da Mata A
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22

Summers, Jacqueline Elizabeth. "Regulation of shoot extension in overwintering tubers of Potamogeton pectinatus L in aerobic and anaerobic conditions." Thesis, University of Bristol, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337261.

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23

Landry, J. Brooke. "Changes in the distribution and density of Florida Bay macrophytes: 1995-2004 /." Electronic version (PDF), 2005. http://dl.uncw.edu/etd/2005/landryj/jbrookelandry.pdf.

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24

Watanabe, Shohei. "Subsurface light conditions and light attenuation mechanisms in Missouri reservoirs /." free to MU campus, to others for purchase, 2004. http://wwwlib.umi.com/cr/mo/fullcit?p1426113.

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25

Newbolt, Chad Haynes Hepp Gary R. "Environmental parameters related to growth of submersed aquatic vegetation in the lower Mobile Delta, Alabama." Auburn, Ala., 2005. http://repo.lib.auburn.edu/2005%20Fall/Thesis/NEWBOLT_CHAD_22.pdf.

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26

Quayyum, H. A. "Interference of aquatic plants associated with wild rice (Zizania palustris L.)." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1995. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/MQ33436.pdf.

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27

Iles, William James Donaldson. "The phylogeny and evolution of two ancient lineages of aquatic plants." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/44466.

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In my thesis I aim to improve our phylogenetic and evolutionary knowledge of two ancient and distantly related groups of aquatic flowering plants, Hydatellaceae and Alismatales. While the phylogeny of monocots has received fairly intense scrutiny for two decades, some parts of its diversification have been less frequently investigated. One such lineage is the order Alismatales, which defines one of the deepest splits in monocot evolution. Many families of Alismatales are aquatic or semi-aquatic, and they have been implicated in historical discussions of monocot origins. I evaluate inter-famili
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28

Maharjan, Renu. "Phytoremediation of Selected Pharmaceuticals by and their Phytotoxicity to Aquatic Plants." University of Toledo / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1396172003.

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29

O'Reilly, Kirk Thomas. "The role of copper in the apparent aluminum toxicity of aquatic systems." PDXScholar, 1985. https://pdxscholar.library.pdx.edu/open_access_etds/3522.

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The effect of variations in aluminum and copper concentrations on the growth rate and enzyme activity of the green alga Scenedesmus quadricauda was investigated. The goal was to determine which chemical species control the biological parameters. The computer program MINEQL (Westal et al 1976) was used to estimate chemical speciation. In the prevalence of both metals, algal growth rate and alkaline phosphatase activity could be correlated to cupric ion activity. The activity of isolated bacterial alkaline phosphatase was found to be a function of both total copper concentration and cupric ion a
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30

MacÃdo, JoemÃlia ConceiÃÃo AraÃjo. "Distribution of functional groups of aquatic plants in coastal wetlands of northeastern Brazil." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=14346.

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FundaÃÃo Cearense de Apoio ao Desenvolvimento Cientifico e TecnolÃgico<br>As plantas aquÃticas situadas em lagoas costeiras apresentam traÃos funcionais selecionados por condiÃÃes abiÃticas e relacionados à histÃria de vida, que lhes permitiram a colonizaÃÃo e estabelecimento nesses ambientes. O presente trabalho testou as seguintes hipÃteses: (1) que as espÃcies possuem um padrÃo homogÃneo de traÃos funcionais, resultando na formaÃÃo de poucos grupos; (2) que as variÃveis limnolÃgicas e pedolÃgicas atuam como filtro que selecionam esses traÃos e interferem na distribuiÃÃo das populaÃÃes na la
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31

Comstock, Kelly K. "Transformation of 2,4,6-trinitrotoluene (TNT) by the aquatic plant myriophyllum spicatum." Thesis, Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/21272.

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32

Tatu, Ketan. "An assessment of impacts of mute swans (Cygnus olor) on submerged aquatic vegetation (SAV) in Chesapeake Bay, Maryland." Morgantown, W. Va. : [West Virginia University Libraries], 2006. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=4504.

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Thesis (Ph. D.)--West Virginia University, 2006.<br>Title from document title page. Document formatted into pages; contains xvi, 161 p. : ill. (some col.), maps (some part col.). Includes abstract. Includes bibliographical references.
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33

Silva, Carolina Vieira [UNESP]. "Composição e abundância da comunidade de macroinvertebrados aquáticos associados à Eichhornia azurea (Swartz) Kunth e suas relações com as variáveis abióticas em seis lagoas laterais ao Rio paranapanema - SP." Universidade Estadual Paulista (UNESP), 2011. http://hdl.handle.net/11449/99434.

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Made available in DSpace on 2014-06-11T19:30:13Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-02-25Bitstream added on 2014-06-13T20:39:53Z : No. of bitstreams: 1 silva_cv_me_botib.pdf: 1186795 bytes, checksum: 33ce3363a0d8502049345a0c4ff4a50a (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>O objetivo deste estudo foi analisar a composição taxonômica e a densidade de macroinvertebrados associados à macrófita Eichhornia azurea (Swartz) Kunth em seis lagoas laterais ao Rio Paranapanema em sua zona de desembocadura na Represa de Jurumirim – SP. As amostra
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34

Bonar, Scott A. "Efficacy of sterile grass carp (Ctenopharyngodon idella) for aquatic plant control in the Pacific Northwest /." Thesis, Connect to this title online; UW restricted, 1990. http://hdl.handle.net/1773/5352.

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35

Marwood, Christopher A. "Chlorophyll fluorescence as a mechanistic bioindicator of photosynthetic inhibition in aquatic plants." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0003/NQ43266.pdf.

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36

Bailey, David E. "Wetland Vegetation Dynamics and Ecosystem Gas Exchange in Response to Organic Matter Loading Rates." W&M ScholarWorks, 2006. http://www.vims.edu/library/Theses/Bailey06.pdf.

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37

Sandberg, Dustin Cody. "Host Affiliations and Geographic Distributions of Fungal Endophytes Inhabiting Aquatic Plants in Northern Arizona, USA." Thesis, The University of Arizona, 2013. http://hdl.handle.net/10150/293649.

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Fungal communities of aquatic ecosystems are understudied, leaving major gaps in estimating global fungal biodiversity. In particular, little is known regarding the distinctiveness of (1) aquatic endophytes vs. those in terrestrial plants, and (2) waterborne fungi vs. those inhabiting aquatic plants or sediments. I assessed the diversity, composition, host affiliations, and geographic structure of culturable endophytes associated with aquatic angiosperms in reservoirs in northern Arizona, and their distinctiveness relative to waterborne- and sediment fungi. Endophytes were low in abundance yet
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38

Jackson, Leland J. (Leland Joseph). "Rooted aquatic macrophytes and the cycling of littoral zone metals." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=39449.

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The general goal of this thesis was to examine and quantify the role of rooted submerged aquatic macrophytes in the cycling of metals in the littoral zone. An empirical study using data from an extensive literature survey showed that aquatic plants do not differ markedly in element composition from the sediments in which they grow, and that during uptake the plant's roots do not discriminate between elements essential and not essential for growth. The organic content, pH and redox potential of the sediments were shown to affect the bioavailability of metals to the plants. Biomass density was u
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39

Madgwick, Genevieve. "Long term changes in aquatic plant communities in English lowland lakes." Thesis, University of Stirling, 2009. http://hdl.handle.net/1893/2270.

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This thesis looks into the use of historical macrophyte records to assess long term changes in macrophyte communities in lakes and potential reasons for these changes. In particular it uses historical records to assess changes in macrophyte communities in the Norfolk Broads and West Midland Meres, two sets of lowland, eutrophic lakes in England. It provides a critical examination of the use of historical records, highlighting some of the constraints common to such data such as variations in recording effort, and bias in species recording and site selection. Having acknowledged these issues we
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40

Nachtrieb, Julie Graham. "The impact of invertebrates to four aquatic macrophytes: Potamogeton nodosus, P. illinoensis, Vallisneria americana and Nymphaea mexicana." Thesis, University of North Texas, 2008. https://digital.library.unt.edu/ark:/67531/metadc9058/.

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This research investigated the impact of invertebrates to four species of native aquatic macrophytes: V. americana, P. nodosus, P. illinoensis, and N. mexicana. Two treatments were utilized on each plant species, an insecticide treatment to remove most invertebrates and a non-treated control. Ten herbivore taxa were collected during the duration of the study including; Synclita, Paraponyx, Donacia, Rhopalosiphum, and Hydrellia. Macrophyte biomass differences between treatments were not measured for V. americana or N. mexicana. The biomasses of P. nodosus and P. illinoensis in non-treated a
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41

Morrison, Wendy Elizabeth. "Aquatic plant-herbivore interactions across multiple spatial scales." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/34734.

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For decades scientists believed that herbivory had minimal impact on freshwater ecosystems. We now know that herbivory in freshwater systems equals or exceeds herbivory in terrestrial and marine systems. In extreme cases, herbivores can change clear, macrophyte dominated ecosystems into turbid plankton dominated ecosystems. Even though research on plant-herbivore interactions in freshwater systems has increased, there is still much that is unknown. This thesis is comprised of four studies investigating freshwater plant-herbivore interactions across multiple spatial scales. The first stud
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42

Diop, Ousseynou. "Management of invasive aquatic weeds with emphasis on biological control in Senegal." Thesis, Rhodes University, 2007. http://hdl.handle.net/10962/d1005414.

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In 1985 the Diama Dam was built near the mouth of the Senegal River to regulate flows during the rainy season and prevent the intrusion of seawater during the dry season. This created ideal conditions upstream of the dam wall for invasion by two highly invasive aquatic weeds, first by water lettuce Pistia stratiotes Linnaeus (Araceae) in 1993, and then by salvinia Salvinia molesta D.S. Mitchell (Salviniaceae) in 1999. This study was focused on the management of P. stratiotes and S. molesta. Following successes that were achieved elsewhere in the world, biological control programmes involving t
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43

Hall, Charles E. (Charles Edward) Carleton University Dissertation Biology. "The study of photosynthetic energy storage in aquatic plants using photothermal deflection spectroscopy." Ottawa, 1995.

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44

Bucaram, Santiago. "The impact of invasive plants on the recreational value of Florida's aquatic areas." [Gainesville, Fla.] : University of Florida, 2007. http://purl.fcla.edu/fcla/etd/UFE0021309.

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45

Polomski, Robert Frank. "Nitrogen and phosphorus remediation of aquatic garden plants in laboratory-scale constructed wetlands." Connect to this title online, 2009. http://etd.lib.clemson.edu/documents/1252937790/.

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46

James, Cassandra Sarah. "Competition between three aquatic macrophytes, Elodea canadensis Michx., Elodea nuttallii (Planch.) H. St. John, and Lagarosiphon major (Ridley) moss." Thesis, University of Liverpool, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367132.

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47

Silva, Carolina Vieira. "Composição e abundância da comunidade de macroinvertebrados aquáticos associados à Eichhornia azurea (Swartz) Kunth e suas relações com as variáveis abióticas em seis lagoas laterais ao Rio paranapanema - SP /." Botucatu : [s.n.], 2011. http://hdl.handle.net/11449/99434.

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Orientador: Raoul Henry<br>Banca: Alaíde Aparecida Gessner<br>Banca: Evanilde Benedito<br>Resumo: O objetivo deste estudo foi analisar a composição taxonômica e a densidade de macroinvertebrados associados à macrófita Eichhornia azurea (Swartz) Kunth em seis lagoas laterais ao Rio Paranapanema em sua zona de desembocadura na Represa de Jurumirim - SP. As amostragens foram realizadas em março e agosto de 2009, supostamente meses de estações chuvosa e seca, respectivamente. Em cada uma das seis lagoas, foram selecionados três bancos distintos de E. azurea para coleta do material biológico (macró
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48

Baker, Jeffery K. Terhune Jeffery S. "The effects of strobe light and sound behavioral deterrent systems on impingement of aquatic organisms at Plant Barry, Alabama." Auburn, Ala, 2008. http://repo.lib.auburn.edu/EtdRoot/2008/FALL/Fisheries_and_Allied_Aquacultures/Thesis/Baker_Jeffery_24.pdf.

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49

Bateman, Mark J. "The uptake of heavy metals by aquatic macrophytes and the development of microsampling analytical techniques." Thesis, Coventry University, 1999. http://curve.coventry.ac.uk/open/items/82ba9974-f8fc-6290-40a7-3a64e63ff8a6/1.

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This thesis reviews literature relating both to the treatment of metal rich wastewaters by the use of constructed wetlands and the use of slurry analytical procedures for the determination of heavy metals in environmental micro-samples. A survey of metal contaminated wetland sites showed that aquatic plants maintain low levels of metals in aerial parts despite some very elevated sediment metal concentrations and extreme acidity. A series of greenhouse trials investigated the uptake of metals into aerial sections of Typha, Phragmites and Equisetum in long term hydroponic experiments. Phragmites
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Harms, Nathan Earl. "Comparison of Heteranthera Dubia (Jacq.) MacM.-associated Macroinvertebrates Between Georgraphical Regions in the United States." Thesis, University of North Texas, 2010. https://digital.library.unt.edu/ark:/67531/metadc28427/.

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Macroinvertebrates associated with the aquatic plant, water stargrass (Heteranthera dubia), were sampled from 12 waterbodies in four regions of the United States from June to August 2005. Taxa richness, evenness, and diversity were lowest in the Lower Midwest (LMW) region, and higher in Northern sites, especially the Upper Midwest (UMW), and Northeast (NE). While relative abundance varied from site to site and region to region, utilization of the plant by functional groups remained fairly constant. Collector-gatherers consistently comprised the largest portion of invertebrates sampled. The shr
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