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Dissertations / Theses on the topic 'Macroinvertebrates'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Possetti, Rafaela Bermudez. "Avaliação do impacto da estação de tratamento de esgoto (ETE) do município de Araraquara - SP, no manancial Ribeirão das Cruzes, pela utilização dos macroinvertebrados aquáticos como bioindicadores." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/18/18138/tde-11052016-112455/.

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Os recursos hídricos são de grande importância para a vida, já que fazem parte dos processos metabólicos dos seres vivos. No decorrer dos anos, o aumento da atividade humana e seus consequentes impactos tem acarretado maior preocupação com a conservação destes recursos. Para que haja consumo de água pelos seres humanos, há a necessidade do tratamento da mesma, retirando-se as impurezas, deixando-a potável. Assim, os efluentes provenientes das atividades humanas, especialmente dos esgotos domésticos, devem ser tratados com precaução antes de serem lançados no corpo receptor diminuindo, de tal m

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2

Pinder, Adrian. "Ecology of macroinvertebrates in seasonal wetlands." Thesis, Pinder, Adrian (1986) Ecology of macroinvertebrates in seasonal wetlands. Honours thesis, Murdoch University, 1986. https://researchrepository.murdoch.edu.au/id/eprint/41489/.

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Two seasonal lakes on the Swan Coastal Plain, Western Australia - Forrestdale Lake and Thomsons Lake - were sampled for macroinvertebrates over a period of six months. Three sites were chosen at each lake along a 500m transect from the fringing vegetation to the lake centres. The lakes were sampled when dry to determine which, if any, macroinvertbrates remained in the exposed sediments during the dry phase. The lakes began to fill in May, and sampling was carried out at flooded sites in May, June and July. Between June and August the water was sampled for nutrients (nitrogen and phosphorus), c

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3

Béjar, Maceiras María. "Interactions between sediment transport, physical habitat and benthic communities in a mountainous river affected by natural and human disturbances." Doctoral thesis, Universitat de Lleida, 2018. http://hdl.handle.net/10803/664346.

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Aquesta tesi presenta noves idees sobre les interaccions entre processos físics (transport de sediments, cabal i hàbitat) i ecològics (comunitats bentòniques, deriva de macroinvertebrats) resultants de pertorbacions naturals (afluents, riuades) i antròpiques (extraccions d’àrids a la llera i hidro-puntes o embolades) en un riu de muntanya (tram alt del riu Cinca, vessant Sud dels Pirineus). S’analitzen processos i interaccions a múltiples escales temporals (des de l’escala instantània a l’anual) i espacials (des del nivell de partícula fins el tram fluvial). La identificació de les escales d’i

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4

Christman, Van D. "Ecology of benthic macroinvertebrates in experimental ponds." Diss., This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-07282008-134927/.

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5

Johansson, Andreas. "Effects of beaver dams on benthic macroinvertebrates." Thesis, Uppsala universitet, Institutionen för biologisk grundutbildning, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-396803.

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In the 1870's the beaver (Castor fiber), population in Sweden had been exterminated. Thebeaver was reintroduced to Sweden from the Norwegian population between 1922 and 1939.Today the population has recovered and it is estimated that the population of C. fiber in all ofEurope today ranges around 639,000 individuals. The main aim with this study was toinvestigate if there was any difference in species diversity between sites located upstream anddownstream of beaver ponds. I found no significant difference in species diversity betweenthese sites and the geographical location of the streams did n

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6

Lage, Fernanda. "Aplicação da tríade de qualidade do sedimento em análise espacial no reservatório do Guarapiranga (SP, Brasil)." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/41/41134/tde-19032014-141437/.

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Com o intuito de conhecer o histórico da comunidade bentônica no reservatório do Guarapiranga para futuro estudo sobre a influência das diferentes formas de poluição na represa sobre o zoobentos, este trabalho foi desenvolvido a fim de coletar dados históricos da fauna de fundo e se houve variação na estrutura da comunidade ou não. Foram analisados quatro trabalhos realizados no período de inverno em quatro regiões médio-profundal do reservatório (Guarapiranga, Embu-Mirim, Embu-Guaçu e Parelheiros) ao longo dos anos, 1939, 1976, 1996 e 2010. A riqueza de dados presentada nos trabalhos refletiu

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7

Faísca, Pedro Miguel Portela. "Comparison of organic matter decomposition between natural and artificial ponds." Master's thesis, Universidade de Évora, 2019. http://hdl.handle.net/10174/24405.

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Litter decomposition is a key ecosystem service within aquatic ecosystems and is a complex process that is sensitive to environmental factors. The role of microbial and macrofaunal decomposers, and how it changes across environmental gradients is not yet fully understood. Decomposition was assessed across 6 biogeographical regions to determine the role of macroinvertebrates in this ecosystem service. Decomposition was estimated using standardized cotton strips, which were deployed in the mesocosms of each region. The role of macroinvertebrates was tested with an exclusion experiment which allo

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8

Mendoza, Barberá Guillermo de. "Lake macroinvertebrates and the altitudinal gradient in the Pyrenees / Los macroinvertebrados lacustres y el gradiente altitudinal en los Pirineos." Doctoral thesis, Universitat de Barcelona, 2013. http://hdl.handle.net/10803/120427.

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“Lake macroinvertebrates and the altitudinal gradient in the Pyrenees [Los macroinvertebrados lacustres y el gradiente altitudinal en los Pirineos]” is a thesis about freshwater macroinvertebrate communities inhabitting the littoral zone of the mountain lakes of the Pyrenees, and about the effect of altitude on the species composition, and richness, of these communities. The investigation is addressed by analysing the relative relevance of the environmental and spatial components of the altitudinal gradient on macroinvertebrate communities. This is performed by comparing different macroinverte

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9

Garey, Andrew L. "The Effects of Hydropeaking on Lotic Benthic Macroinvertebrate Assemblages." VCU Scholars Compass, 2015. http://scholarscompass.vcu.edu/etd/4057.

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The term hydropeaking refers to anthropogenically induced, short-duration, high-magnitude discharge pulses that are generated in lotic systems for electricity production. The practice of hydropeaking produces the largest source of renewable energy worldwide, and its use is projected to increase through the year 2040. The primary objective of this work was to evaluate the effects of hydropeaking on benthic macroinvertebrate assemblages, which are important components of lotic ecosystems. Results of this work show that, across a wide range of impacted systems worldwide, the consistently observed

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10

Thoresson, Joakim. "Effects of a fish farm on downstream macroinvertebrates." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-150565.

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The number of fish farms is increasing worldwide tomeet the global demand for fish used as a food source for humans. The WorldBank predicts that by 2030, 62 percent of all consumed fish globally will beproduced in fish farms. Due to this increasing demand for fish, fish farming isa growing business and the numbers of fish farms are increasing. Today, thereare fish farms situated in more than one hundred municipalities in rural partsof Sweden. Fish farms may besituated in hydropower plant reservoirs, which have been foundto be suitable locations for cage fish farming. However, environmental con

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11

Gabel, Friederike. "Impacts of ship-induced waves on benthic macroinvertebrates." Doctoral thesis, Humboldt-Universität zu Berlin, Landwirtschaftlich-Gärtnerische Fakultät, 2012. http://dx.doi.org/10.18452/16498.

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Schifffahrt stellt weltweit eine der wichtigsten Nutzungen der Flüsse und Seen dar, die zukünftig weiter zu nimmt. Sie schädigt Ufer durch Wellenschlag erheblich. Die Effekte von Schiffswellen auf benthische Wirbellose sind aber bisher kaum bekannt, obwohl diese eine zentrale Rolle im litoralen Nahrungsnetz spielen. Daher untersuchte ich 1) die direkten Effekte von Schiffswellen auf benthische Wirbellose, 2) die resultierenden Auswirkungen auf trophische Interaktionen und 3) das Wachstum und die Fitness von Wirbellosen, sowie 4) die langfristigen Änderungen der litoralen Wirbellosenzönosen. L

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12

Lee, David George. "Environmental change and freshwater macroinvertebrates at Wicken Fen, Cambridgeshire." Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.254522.

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13

Drummond, Laura Rose. "Influence of habitat drying on New Zealand stream macroinvertebrates." Thesis, University of Canterbury. School of Biological Sciences, 2011. http://hdl.handle.net/10092/6471.

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A better understanding of the responses by stream macroinvertebrates to habitat drying is needed as the pressure put on freshwater resources and hydrological regimes through land-use change, groundwater takes, and irrigation increases. To further understand the influences of abiotic and biotic factors on macroinvertebrate emergence, development, and mortality during habitat drying, I designed a field study and a mesocosm experiment. Three distinct drying regimes were measured in scour pools in the Selwyn River, Canterbury, New Zealand, over the austral summer of 2008/09. Pool hydroperiod (time

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14

O'Hare, Matthew Thomas. "Flow preferences of benthic macroinvertebrates in three Scottish rivers." Thesis, University of Glasgow, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312705.

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15

Landström, Emelie. "Resource use by macroinvertebrates within boreal stream food webs." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-105593.

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Stream food webs are supported by carbon produced within the stream (autochthonous) and from terrestrial environments (allochthonous). Allochthonous carbon (C) inputs are assumed to be the dominant C source supporting food webs within small streams, but few direct estimates of resource use in small streams have been made, especially in boreal streams. The objective of this study was to determine the relative dependence on allochthonous and autochthonous C by consumers in relation to C pools within streams with high terrestrial inputs. Furthermore, this study aimed to investigate if the relativ

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16

Mendes, Tânia Marisa Neves. "Combined assessment of streams based on diatoms and macroinvertebrates." Master's thesis, Universidade de Aveiro, 2012. http://hdl.handle.net/10773/9527.

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Mestrado em Ecologia, Biodiversidade e Gestão de Ecosistemas<br>As diatomáceas e os macroinvertebrados fornecem informação complementar na avaliação da qualidade da água. No entanto, os métodos utilizados para esse fim têm sido desenvolvidos separadamente para as duas comunidades. O objetivo deste estudo foi verificar se um modelo preditivo baseado nos dois elementos biológicos produz uma avaliação mais simplista e simultaneamente mais holística e robusta da qualidade dos ecossistemas face aos métodos individuais, os quais necessitam de ser combinados posteriormente, usualmente com base na abo

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17

Jakobsson, Ellinor. "Seasonal community dynamics of macroinvertebrates in an Arctic stream." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-160186.

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Arctic ecosystems are amongst the most vulnerable on Earth to ongoing climate change. While the responses to these changes are well studied on land, less is known about how aquatic communities may respond to a warmer arctic. For stream invertebrate communities, predicting such responses requires basic understanding of how and why different taxonomic groups fluctuate throughout the year. However, few studies have assessed the community dynamics of stream macroinvertebrates across seasons in the Arctic. In this project, I asked how macroinvertebrate community structure changes between months and

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18

Song, Mi-Young. "Ecological quality assessment of stream ecosystems using benthic macroinvertebrates." Toulouse 3, 2007. http://thesesups.ups-tlse.fr/224/.

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Dans cette étude, nous avons appliqué le modèle SOM (Self-Organizing Map) pour une évaluation de la qualité écologique de l'écosystème aquatique en se basant sur les macroinvertébrés benthiques. D'abord, dans le chapitre I, le SOM a été utilisé pour extraire les informations à partir de grandes matrices de données complexes de variables environnementales et des macroinvertébrés benthiques des différents microhabitats. Bien que les échantillonnages aient e��té réalisés dans une zone limitée, le patron des variables environnementales révèle une hétérogénéité spatiale. Les classes de macroinverté

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19

Câmara, Carla Daniela. "Critérios e indicadores para monitoramento hidrológico de florestas plantadas." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/18/18138/tde-12052006-111320/.

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O presente estudo propôs uma nova leitura dos dados do monitoramento hidrológico de sete microbacias experimentais, considerando que as variáveis que caracterizam os sistemas aquáticos destas microbacias constituem indicadores da qualidade do manejo florestal. Os objetivos do estudo foram: a) selecionar, entre as variáveis já monitoradas, os potenciais indicadores para o monitoramento hidrológico de florestas plantadas; b) testar a viabilidade da utilização da comunidade de macroinvertebrados bentônicos como indicador biológico. O estudo foi desenvolvido nas seguintes microbacias: na região do

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20

Beghelli, Frederico Guilherme de Souza [UNESP]. "As relações de organismos bentônicos bioindicadores com a poluição por metais e metaloides em represas do sistema Cantareira, São Paulo." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/140278.

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Smith, Heidi. "The hydro-ecology of limestone springs in the Wye Valley, Derbyshire." Thesis, University of Huddersfield, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327144.

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22

Skorupski, Joseph A. Jr. "Effects of CFT Legumine™ Rotenone on Macroinvertebrates in Four Drainages of Montana and New Mexico." Thesis, University of North Texas, 2011. https://digital.library.unt.edu/ark:/67531/metadc84278/.

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Rotenone is considered essential in the restoration of native fish populations; however, the technique is contentious and criticized, specifically concerning impacts to invertebrates. Knowledge of effects to non-target organisms is important for the management and conservation of fish populations. This thesis has two general objectives: (1) demonstrate the influence CFT Legumine™ rotenone has on benthic macroinvertebrates for restoration projects in Montana and New Mexico and (2) evaluate the immediate response by means of invertebrate drift. Chapters 2 and 4 incorporate results from four diff

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Vasconcelos, Márlon de Castro. "Efeito do sedimento fino de origem terrestre sobre a fauna de macroinvertebrados bentônicos em riachos." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2007. http://hdl.handle.net/10183/10908.

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O aporte de sedimento fino é um dos principais agentes causadores de impactos a ecossistemas aquáticos. Este trabalho teve por finalidade avaliar por experimentalmente o efeito do sedimento fino sobre a fauna de macroinvertebrados bentônicos em um riacho subtropical. O local escolhido foi o rio Forqueta no distrito de Barra do Ouro pertencente ao município de Maquiné, RS. Foi adicionado por tratamento cerca 3138 cm3 de sedimento fino, separado em duas frações: areia fina (0 mm a 0,250mm) e areia grossa (0,25 mm a 1mm), em dois níveis, com e sem sedimento. Os dados foram analisados através por

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Oswald, Louisa Jane, and n/a. "Usefulness of Macroinvertebrates for In Situ Testing of Water Quality." University of Canberra. Institute for Applied Ecology, 2008. http://erl.canberra.edu.au./public/adt-AUC20090107.130047.

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For various reasons, existing methods for the assessment of aquatic pollution do not always adequately address the way in which contaminants affect receiving environments and their component ecosystems. The main advantage of biological assessment over the measurements of physical and chemical aspects of water quality is that biota provide an integrated response to all prevailing influences in their environment. Biological assessment protocols have been developed for a range of test organisms, from bacteria to mammals using measurement from molecular biomarkers to indicators at the population o

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Edwards, Patrick Michael. "Macroinvertebrates and Excessive Fine Sediment Conditions in Oregon Coastal Streams." Thesis, Portland State University, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3629266.

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<p>The Pacific Coastal ecoregion contains large tracts of economically important forestlands that also serve as critical stream habitat for endangered Salmonids. Excessive fine sediment deposition in streams of this region is a major environmental concern in the region but difficult to measure directly. The use of stream invertebrates to monitor fine sediment conditions in streams requires careful consideration of several important factors that complicate their use as bioindicators including high spatial and temporal variability and covariance with other environmental variables. </p><p> To e

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Foster, Carole A. "Benthic macroinvertebrates in Uvas Creek, California, downstream of a reservoir." Thesis, San Jose State University, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=1583489.

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<p> I sampled macroinvertebrates in May, July, and October 2008 in Uvas Creek, a reservoir-regulated stream in south Santa Clara County, California, to assess what factors (including canopy closure, turbidity, and stream flow) downstream of the reservoir were related to food availability for rearing juvenile Steelhead (Oncorhynchus mykiss). I found benthic and drifting macroinvertebrate biomass was considerably greater during most months in the more open-canopied two sites in the downstream reach as compared to the densely shaded, more turbid and silty two sites in the upstream reach. Abunda

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Kelly, Lucy Claire. "Community ecology and genetics of macroinvertebrates in permanent Macaronesian streams." Thesis, University of Plymouth, 2001. http://hdl.handle.net/10026.1/738.

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Extensive community-based sampling and single-species genetic analysis were used to study factors driving stream invertebrate community assembly on islands. Macroinvertebrates and physicochemistry were surveyed in forty-two streams on La Palma, La Gomera, Tenerife and Madeira (Macaronesia). Island faunal relationships and the role of the stream and catchment environment in determining community composition were investigated with multivariate analyses; assemblage nestedness and species richness, occupancy and abundance were also examined. The relationship between genetic differentiation and ran

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Mustow, Stephen Eric. "Aquatic macroinvertebrates and environmental quality in rivers in Northern Thailand." Thesis, University of London, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266399.

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Roberts, Louise. "Behavioural responses by marine fishes and macroinvertebrates to underwater noise." Thesis, University of Hull, 2015. http://hydra.hull.ac.uk/resources/hull:11515.

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The aim of this thesis was to explore and evaluate the key behavioural responses of coastal UK marine fishes and macroinvertebrates to anthropogenic noise. Work focussed upon two key aspects, water-borne acoustics and the relatively unstudied substrate-borne vibration, with a combination of laboratory and field work using grouped and solitary individuals. A literature review on underwater vibroacoustics, detection abilities, anthropogenic noise sources and the effects of such stimuli was provided (Chapter 1). Playbacks were undertaken in the field using a purpose-built underwater transducer ar

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Kusi, Joseph. "Potential Toxicity of Silver Nanoparticles to Microbial Communities and Macroinvertebrates." Digital Commons @ East Tennessee State University, 2020. https://dc.etsu.edu/etd/3780.

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Silver nanoparticles (AgNPs) are the most common nanomaterials incorporated in commercial products due to their antimicrobial activity. Recently, AgNPs were detected in surface waters suggesting the potential for bioavailability in the aquatic receptor organisms. This dissertation research attempts to understand the potential toxicity of AgNPs on water quality indicators, focusing on the microbial community and amphipods. This study evaluated whether: (1) the antimicrobial properties of AgNPs pose potential risks to microbial communities in pathogen impaired streams; (2) AgNPs can cause a shif

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Bessom, Stephanie Marie. "Availability and Toxicity of Nickel to Lotic Periphyton and Macroinvertebrates." Wright State University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=wright1229483842.

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Carey, Nicole. "Effect of drying flow regimes on macroinvertebrates in headwater streams." Thesis, Carey, Nicole (2021) Effect of drying flow regimes on macroinvertebrates in headwater streams. PhD thesis, Murdoch University, 2021. https://researchrepository.murdoch.edu.au/id/eprint/63962/.

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In many regions, global warming is causing drying in perennial streams and prolonged drying in intermittent streams. Flow regime strongly influences stream ecosystems, so changing regimes are predicted to alter stream biodiversity and function. This thesis investigated the effect of flow regime change (perennial to intermittent) on macroinvertebrate communities in headwater streams in south western Australia (SWA), a region that has already experienced substantial climatic drying. I used a multiple before-after, control-impact design where controls comprised stream reaches that remained perenn

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Eisele, Shante N. "Comparing created and natural depressional wetlands through trophic analysis of macroinvertebrates." Wright State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=wright1547577007255219.

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Tornero, Pinilla Irene. "Metacommunities and biodiversity patterns in Mediterranean temporary ponds: the role of pond size, network connectivity and dispersal mode." Doctoral thesis, Universitat de Girona, 2020. http://hdl.handle.net/10803/670096.

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We sampled the macrofaunal metacommunities in four networks of Mediterranean temporary ponds covering a wide range of pond sizes and different spatial extents. 1) In the smallest pond network, pond size was not related to any of the environmental factors and neither to community structure but had an effect on community composition. The effect of a high connectivity could explain the absence of differences in community structure. 2) Environmental distance had larger effects than spatial distance in the decay of community similarities. In the smaller network, the biotic groups showed different d

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Barbosa, Domingos Sávio. "Limnologia do rio Uberaba (MG) e a utilização de macroinvertebrados bentônicos como bioindicadores das modificações ambientais." Universidade de São Paulo, 2003. http://www.teses.usp.br/teses/disponiveis/18/18139/tde-29042009-143849/.

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Os sistemas lóticos são considerados sistemas abertos e de fluxo unidirecional de energia. Nestes sistemas a intensa relação com o meio terrestre adjacente faz com que as condições ecológicas dos rios sejam um reflexo das transformações ocorridas em sua bacia de drenagem. O objetivo do presente estudo foi traçar um perfil dos aspectos ecológicos do rio Uberaba-MG, em função dos usos preponderantes da bacia hidrográfica. Foram avaliadas as características limnológicas, a comunidade de macroinvertebrados bentônicos e o estado de conservação da área de entorno do rio. Procurou-se ainda avaliar a

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Beliene, Glieber Henriques. "Efeitos de bivalves, gastrópodes e fatores ambientais sobre a abundância de macroinvertebrados em lagoas adjacentes ao Rio Cuiabá-MT." Universidade Federal de Mato Grosso, 2015. http://ri.ufmt.br/handle/1/239.

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Vasconcelos, Márlon de Castro. "Classificação de rios e sua relação com a comunidade de macroinvertebrados em riachos." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/72393.

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Nesta tese avaliei a relação entre a classificação de riachos em tipos de rios baseados nas suas características abióticas com a comunidade de macroinvertebrados. Especificamente, avaliei as seguintes questões: 1) Como as escalas de trecho de rio (local) e de bacia hidrográfica (regional) influenciam as comunidades? 2) As classificações de rios baseadas em variáveis abióticas são concordantes com aquelas baseadas em macroinvertebrados? 3) As respostas das comunidades de macroinvertebrados são similares quando diferentes abordagens de classificação são usadas? Por fim, 4) De que forma a resoluç

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McNish, Julie Helen. "An interdisciplinary assessment of variations in acidity in Yorkshire rivers, with special reference to episodic acidification of headwaters in the Esk catchment." Thesis, University of Huddersfield, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285628.

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Costa, Talitha Rochanne Alves Abreu da. "AvaliaÃÃo da qualidade de Ãgua do reservatÃrio GaviÃo utilizando macroinvertebrados como bioindicadores." Universidade Federal do CearÃ, 2013. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=11312.

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nÃo hÃ<br>A preocupaÃÃo com processos que causam degradaÃÃo da qualidade dos recursos hÃdricos e dos ecossistemas aquÃticos tem se acentuado, principalmente, devido a enorme quantidade de poluentes e novas substÃncias que adentram nesse meio. Objetivou-se, com este trabalho, ampliar o conhecimento sobre a comunidade de macroinvertebrados aquÃticos do reservatÃrio GaviÃo em Itaitinga (CE), onde ocorre a captaÃÃo das Ãguas para o sistema de abastecimento de Ãgua da regiÃo metropolitana de Fortaleza e avaliar como os organismos respondem Ã disposiÃÃo dos resÃduos da ETA GaviÃo, utilizando o Ãndic

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Khan, Muhammad Irfan. "A lotic microcosm for ecological and ecotoxicological studies on benthic macroinvertebrates." Thesis, Imperial College London, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320214.

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Neale, Martin William. "Classifying and measuring the ecological status of lakes using benthic macroinvertebrates." Thesis, University of Ulster, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.414101.

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Stockley, Rosalind Antonia. "Detritus processing in the River Swale-Ouse : the role of macroinvertebrates." Thesis, University of York, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.298585.

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Tharme, Rebecca Elizabeth. "Ecologically relevant low flows for riverine benthic macroinvertebrates: characterization and application." Doctoral thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/11040.

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Intensifying hydrologic alteration and the resultant degradation of river ecosystems worldwide have catalyzed a growing body of ecohydrological research into the relationships between flow regime attributes, physical habitat dynamics and biotic response, particularly for determining environmental flows. While invertebrate response to floods has received most attention, in this thesis the aim was to identify and characterize low flows that constituted various degrees of physical disturbance to benthic macroinvertebrate assemblages of perennial rivers.

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McTammany, Matthew Eric Jr. "The Impact of Urbanization on Benthic Macroinvertebrates in Southern Appalachian Streams." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/46508.

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Macroinvertebrate assemblage structure was compared from 12 streams differing in urbanization type and degree. Urbanization, both historical and current, was measured using several variables generated from GIS overlays of land cover, aerial photographs, and field exploration in the study watersheds. Quantitative benthic macroinvertebrate samples were taken, and a variety of physicochemical characteristics were measured. Increasing urbanization resulted in a decline in diversity and abundance of intolerant organisms. Streams in industrial areas had greater invertebrate density due to large

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Kaller, Michael D. "Effects of sediment upon benthic macroinvertebrates in forested northern Appalachian streams." Morgantown, W. Va. : [West Virginia University Libraries], 2001. http://etd.wvu.edu/templates/showETD.cfm?recnum=1862.

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Thesis (M.S.)--West Virginia University, 2001.<br>Title from document title page. Document formatted into pages; contains x, 157 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references.

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Leite, Ricardo Cardoso. "Biodiversidade em microescala: uma perspectiva para a ecologia de sistemas lóticos." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/59/59131/tde-02072014-113205/.

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Este trabalho enfatizou as escalas espaciais de microhabitat e de mesohabitat para investigar como a fauna de macroinvertebrados aquáticos é influenciada pelas variáveis ambientais e espaciais. O primeiro capítulo trás uma visão geral da aplicabilidade das escalas de microhabitat e de mesohabitat ao avaliar a estrutura da fauna e, também, demonstra que a composição do substrato influencia a composição faunística. No segundo capítulo, realizamos uma avaliação da suficiência amostral e comparamos a diversidade alfa e beta entre métodos de coleta e entre diferentes mesohabitats. No terceiro capít

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Malacarne, Tássia Juliane. "Efeitos do uso do solo na estrutura e composição de invertebrados aquáticos e no processo de decomposição foliar em riachos neotropicais." Universidade Estadual do Oeste do Parana, 2015. http://tede.unioeste.br:8080/tede/handle/tede/707.

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Made available in DSpace on 2017-07-10T14:38:28Z (GMT). No. of bitstreams: 1 tassia.pdf: 1244152 bytes, checksum: 94c85e90bbbe81a039be502cd6b74f66 (MD5) Previous issue date: 2015-02-26<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Different land uses directly affect the characteristics of a river basin, reflecting the health and integrity of the aquatic environment, and consequently influence the aquatic biota and ecosystem processes. This study aimed to analyze the structure and community composition of aquatic invertebrates and the role of these organisms in the process

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Nin, Cecília Schüler. "Quebra foliar e colonização de macroinvertebrados em riachos do bioma pampa." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2010. http://hdl.handle.net/10183/78155.

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Dois estudos envolvendo processos ecológicos de decomposição foliar e colonização por macroinvertebrados foram realizados em três nascentes do bioma Pampa. O primeiro deles questionou se as folhas podem ter processos diferenciados quando estão misturadas, ou seja, se há efeito aditivo de uma folha sobre as outras e se a fauna decompositora seleciona recursos na forma desse composto heterogêneo. Para tanto, quatro espécies mais comuns da mata de galeria desses riachos foram coletadas e incubadas em bolsas-de-folhiço. A taxa de decomposição das folhas quando misturadas não é diferente da média d

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Ruhí, i. Vidal Albert. "Primary succession in man-made wetlands: biodiversity, structure and dynamics of macrofaunal assemblages." Doctoral thesis, Universitat de Girona, 2012. http://hdl.handle.net/10803/77638.

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Man-made wetlands are often created to compensate for the loss or degradation of natural wetlands, but little is known about the processes taking place in these artificial environments, especially at the community level. Throughout this thesis, we have assessed the phenomena of primary succession over different time (short-, mid- and long-term) and spatial scales (local, regional, interregional levels), applying different approaches (taxonomic and functional) and subject groups (invertebrates and amphibians). Our main findings regarding time scales show a 3-phase successional pattern in Medite

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Sandin, Leonard. "Spatial and temporal variability of stream benthic macroinvertebrates : implications for environmental assessment /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 2000. http://epsilon.slu.se/avh/2000/91-576-6056-5.pdf.

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