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Dissertations / Theses on the topic 'Shallow macrophyte lake'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Kazanjian, Garabet. "Primary production in shallow freshwater systems amid a rapidly changing world." Doctoral thesis, Humboldt-Universität zu Berlin, 2019. http://dx.doi.org/10.18452/20561.

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Kleine, flache Gewässer gelten als sogenannte „hotspots“ der Primärproduktion und Kohlenstoffbindung. Diese Doktorarbeit zielt darauf ab, die Primärproduktion verschiedener kleiner Gewässer zu quantifizieren sowie die Mechanismen, die den Kohlenstoffkreislauf dieser Systeme beeinflussen, zu analysieren. Der Fokus liegt dabei auf dem Einfluss globaler Veränderungen, die diese Mechanismen verändern können Im ersten Abschnitt wurde die Primärproduktion (PP) in kleinen, temporären Söllen untersucht, die sehr anfällig für Störungen sind. Ich konnte zeigen, dass die PP der Sölle im Sommer außergewö

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2

Hopkins, Aareka. "The potential for Charophyte re-establishment in large, shallow, eutrophic lakes with special reference to Lake Waikare, New Zealand." The University of Waikato, 2006. http://hdl.handle.net/10289/2419.

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Lake Waikare is a large, shallow eutrophic lake devoid of submerged macrophytes. I investigated potential methods for re-establishing submerged macrophytes in the lake. Specifically, I subjected charophyte (Chara corallina) plantlets to two treatments of exposure in the lake (in areas exposed and sheltered from wind) to test for survival and growth under these conditions, and inside and outside fish exclosures to test for growth and survival in the presence of fish. While plantlets grew outside the exclosures in winter, their accumulated biomass over 21 days was less than protected plantlets.

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3

Schutten, Johan. "Biomechanical limitations on macrophytes in shallow lakes." [Amsterdam] : Amsterdam : Instituut voor Biodiversiteit en Ecosysteemdynamica (IBED) ; Universiteit van Amsterdam [Host], 2005. http://dare.uva.nl/document/78031.

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4

Williams, Adrian Evin. "Effects of coarse fish in shallow lake ecosystems : an ecological and sociological appraisal." Thesis, University of Liverpool, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312490.

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5

Meding, Marianne E. "Structure and function in shallow prairie lakes, macrophytes and winter anoxia." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ64971.pdf.

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6

Brothers, Soren. "Carbon gains, losses, and feedbacks in shallow, eutrophic lakes of phytoplankton and macrophyte dominance." Phd thesis, Universität Potsdam, 2013. http://opus.kobv.de/ubp/volltexte/2013/6820/.

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Lakes are increasingly being recognized as an important component of the global carbon cycle, yet anthropogenic activities that alter their community structure may change the way they transport and process carbon. This research focuses on the relationship between carbon cycling and community structure of primary producers in small, shallow lakes, which are the most abundant lake type in the world, and furthermore subject to intense terrestrial-aquatic coupling due to their high perimeter:area ratio. Shifts between macrophyte and phytoplankton dominance are widespread and common in shallow lake

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7

Meerhoff, Mariana. "The structuring role of macrophytes on trophic dynamics in shallow lakes under a climate-warming scenario." Aarhus : Faculty of Science, University of Aarhus, 2006. http://www2.dmu.dk/Pub/PHD_MM.pdf.

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8

Levi, Eti Ester. "Paleolimnological Assessment Of Past Aquatic Vegetation Dynamics And Ecosytem State In Turkish Shallow Lakes." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12611177/index.pdf.

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Since submerged macrophytes are a key primary producer of shallow lakes and are sensitive to environmental changes, macrofossils of them can be used in investigations of past environmental conditions, to infer human introduced environmental impacts (e.g. eutrophication) and to determine past macrophyte communities. The present study includes twenty six shallow lakes, which were chosen along a latitudinal gradient ranging from the North (41&deg<br>52&acute<br>N, 27&deg<br>58&acute<br>E) to the South (37&deg<br>06&acute<br>N, 29&deg<br>36&acute<br>E) in Turkey. Sampling for environmental variab

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9

Karabulut, Dogan Ozge. "Monitoring Of Water Clarity, And Submerged And Emergent Plant Coverages In Shallow Lake Wetlands Using Remote Sensing Techniques." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608235/index.pdf.

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Shallow lake wetlands, for which aquatic plants (macrophytes) and water clarity are the key indicators of ecological status, provide valuable services to wildlife and humanity. Conservation of these ecosystems requires development of rapid and large scale monitoring strategies, where remote sensing and Geographic Information Systems (GIS) can be advantageous. In this study, high spatial resolution Quickbird and IKONOS and medium spatial resolution Landsat and Aster images were used for monitoring the aquatic plants and water clarity in Lakes Mogan and Eymir. Classification of emergent plant

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10

Brothers, Soren [Verfasser], and Ursula [Akademischer Betreuer] Gaedke. "Carbon gains, losses, and feedbacks in shallow, eutrophic lakes of phytoplankton and macrophyte dominance / Soren Brothers. Betreuer: Ursula Gaedke." Potsdam : Universitätsbibliothek der Universität Potsdam, 2013. http://d-nb.info/1043379258/34.

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11

Tuba, Bucak. "Determining The Roles Of Water Level And Fish Predation On Submerged Plant Growth In Shallow Lakes Using Mesocosm Experiment." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12612995/index.pdf.

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Four-month mesocosm experiment from June 1st to September 25th, 2009, was conducted to determine the effect of water level dierence in combination with fish predation pressure, on submerged macrophyte development, in an eutrophic shallow lake. Effect of water level fluctuation was simulated by placing enclosures to the different water depths that included 0.8 m, 1.6 m and 2.3 m on Lake Eymir. These enclosures having a cylindirical shape and 1.2 m diameter, were open to sediment and atmosphere interaction. The highest water level mesocosms were cancelled after fifth sampling due to rapture in t

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12

Ozen, Arda. "Impact Of Top Down And Bottom Up Controls On The Microbial Loop In Turkish Shallow Lakes: Space For Time Substitute, Monitoring And Mesocosms Approaches." Phd thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12615058/index.pdf.

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Bacteria, nanoflagellates and ciliates constitute the microbial loop and it is a model of the pathways of carbon and nutrient cycling through microbial components of pelagic aquatic communities. The current study comprised of a comparative study of the microbial food web community along north to south latitudinal gradient using space for time susbtitute, monitoring and mesocosms experiments with contrasting nutrient and predation states. We investigated effect of fish predation through different zooplankton taxa on microbial loop community with in situ food web experiments in 14 lakes along no

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13

Vijayaraj, Vinita. "Understanding regime shifts in shallow lakes subject to multiple stresses : Individual and combined effects of agricultural runoff and climate warming on submerged macrophytes." Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0076.

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Les macrophytes immergés stabilisent les lacs peu profonds dans un état d'eau claire, leur permettant ainsi de fournir de nombreux services écosystémiques. Ce régime écologique ordinairement stable est menacé par l'apport d'eaux de ruissellement agricole (RA) contenant des pesticides et des nutriments pouvant affecter les macrophytes directement ou indirectement en perturbant les interactions biotiques. Combinés à une augmentation de la température de l'eau sous l'effet du changement climatique, les effets de ces facteurs de stress sur les écosystèmes aquatiques sont difficiles à prédire. Dans

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14

Ferreira, Tiago Finkler. "O papel das macrófitas submersas sobre a qualidade da água, restauração e conservaçao de lagos rasos subtropicais : estudo de caso, a Lagoa Mangueira, RS." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2009. http://hdl.handle.net/10183/18978.

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O objetivo desta Tese foi avaliar o papel da macrófitas submersas em relação à qualidade da água, interações com o fitoplâncton e ciclagem biogeoquímica na Lagoa Mangueira, um grande lago raso subtropical, no sul do Brasil. Para alcançar estes objetivos, este trabalho conta com uma série de abordagens, como: levantamentos de campo, etapas experimentais e uso de modelos ecológicos para avaliar a influência de macrófitas sobre a dinâmica do ecossistema de estudo, cujas águas são intensamente exploradas para suprir a cultura de arroz em sua área de entorno. Ao longo de seus 200km de perímetro lit

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15

Ng, Haig They. "Diversidade e metabolismo do bacterioplâncton em lagos rasos subtropicais." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2008. http://hdl.handle.net/10183/14356.

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A planície costeira do Rio Grande do Sul apresenta vários lagos subtropicais rasos com origem semelhante e uma grande amplitude de tamanho, distância e conectividade entre lagos, e desta maneira é aqui considerada como apropriada ao endereçamento de questões tais como diversidade e metabolismo do bacterioplâncton, um tópico atual de pesquisa. Em uma primeira abordagem, nós acessamos a diversidade bacteriana usando a técnica de Hibridização in situ Fluorescente (FISH) em um sub-conjunto destes lagos e inesperados padrões biogeográficos foram encontrados, a despeito da baixa resolução taxonômica

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16

Silva, Juliana Souza da. "Estudo a longo prazo da assembleia de Chironomidae em lagos rasos." reponame:Repositório Institucional da FURG, 2012. http://repositorio.furg.br/handle/1/4386.

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Dissertação (mestrado)-Universidade Federal do Rio Grande, Programa de Pós-Graduação em Biologia de Ambientes Aquáticos Continentais, Instituto de Ciências Biológicas, 2012.<br>Submitted by Cristiane Gomides (cristiane_gomides@hotmail.com) on 2014-01-13T17:21:35Z No. of bitstreams: 1 0000010065.pdf: 2640072 bytes, checksum: 684c38e9d51f045a0f7b69cc99781e58 (MD5)<br>Approved for entry into archive by cristiane soares (krikasoares@live.com) on 2014-02-23T02:02:19Z (GMT) No. of bitstreams: 1 0000010065.pdf: 2640072 bytes, checksum: 684c38e9d51f045a0f7b69cc99781e58 (MD5)<br>Made available in DSpac

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17

Rodrigues, Lúcia Helena Ribeiro. "Reguladores da dinâmica das comunidades planctônicas e íctica em ecossistemas límnicos subtropicais." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2009. http://hdl.handle.net/10183/19125.

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As comunidades mudam no tempo e espaço em função de pressões decorrentes da estrutura do habitat e disponibilidade de recursos. O entendimento das relações ecológicas e interações das comunidades são essenciais para o manejo com objetivo de melhorar a qualidade da água através de interferências na cadeia trófica aquática e na dinâmica do ecossistema através de modelagem ecológica. O presente estudo foi desenvolvido em dois sistemas límicos subtropicais no extremo sul do Brasil: banhados temporários (‘campos de cultivo de arroz’) e um grande lago raso, lagoa Mangueira. O objetivo do trabalho no

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18

Στεφανίδης, Κώστας. "Οικολογική έρευνα της λίμνης Παμβώτιδας : διερεύνηση των σχέσεων της οικολογικής ποιότητας των υδάτων και της υδρόβιας βλάστησης". 2004. http://nemertes.lis.upatras.gr/jspui/handle/10889/421.

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Η λίμνη Παμβώτιδα των Ιωαννίνων είναι μια τυπική εύτροφη ρηχή λίμνη που παρουσιάζει μεγάλο οικολογικό ενδιαφέρον (ανήκει στο δίκτυο «ΦΥΣΗ 2000» , αποτελεί ενδιαίτημα πολλών ελληνικών ενδημικών ειδών ) . Ο ευτροφισμός και η εισαγωγή πολλών αλλόχθονων κυπρινοειδών ειδών τα τελευταία χρόνια έχουν προκαλέσει τα τελευταία χρόνια δραματική μείωση της αφθονίας της υδρόβιας βλάστησης. Στα πλαίσια αυτής της μεταπτυχιακής διατριβής μελετήθηκε η δομή της υπάρχουσας υδρόβιας βλάστησης και αξιολογήθηκε η επίδραση της παρόχθιας ζώνης στα φυσικοχημικά χαρακτηριστικά του νερού κατά τη δειγματοληπτική περίοδο

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