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Teses / dissertações sobre o tema "Lakes"

Autor: Grafiati

Publicado: 4 de junho de 2021

Última modificação: 25 de julho de 2025

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1

Sadurski, Stephen Edward. "The Biogeochemistry of Carbon Isotopes in Local Lakes." Wright State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=wright1357745315.

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2

Balangoda, Anusha. "Impact of Artificial Aeration on Nutrients in Small Eutrophic Lakes." Diss., North Dakota State University, 2014. http://hdl.handle.net/10365/24669.

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3

Zastepa, Arthur. "Fate and Persistence of Microcystin Congeners in Lakes and Lake Sediments." Thesis, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/30453.

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Cyanobacterial blooms and their toxins are a major water quality and potential health risk around the world. This thesis developed an analytical method for microcystin congeners in sediments in order to examine their fate in lakes and establish the history of toxin-producing cyanobacteria in relation to environmental change using lake sediments. A novel method for both intra- and extracellular microcystins in lake sediments was developed, consisting of accelerated solvent extraction, hydrophilic-lipophilic balance solid phase extraction and multiple reaction monitoring-based HPLC-MS/MS quantit

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4

Gabathuler, Matthias. "Physical ecosystem determinants in high mountain lakes : the Jöri Lakes, Switzerland /." [S.l.] : [s.n.], 1999. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=13449.

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5

Snell, Margaret Anderson. "Employing Institutional Economics to Explain the Distribution and Success of Maine Lake Associations." Fogler Library, University of Maine, 2009. http://www.library.umaine.edu/theses/pdf/SnellMA2009.pdf.

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6

Hollingsworth, D. Richard. "Great Lakes rural culture." Theological Research Exchange Network (TREN), 2000. http://www.tren.com.

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7

White, Mary Katherine. "Great Lakes, great mistakes." Thesis, University of Iowa, 2017. https://ir.uiowa.edu/etd/5681.

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This work explores the fragility of the Great Lakes and the environmental degradation we have caused. My main focus revolves around what the EPA considers to be the Great Lakes Areas of Concern (AOCs). This list contains 27 rivers that flow into the Great Lakes, most of which are or have been areas of industrial and chemical pollution. Through installations involving photography, ceramics, and video, I hope to reveal the issues facing the Great Lakes and explore how people can help.

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8

Davies, Kimberley. "Biogeochemical interactions in thermokarst lakes : investigations into methane processes and lake biota." Thesis, University of Southampton, 2015. https://eprints.soton.ac.uk/380572/.

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9

Olli, Gull. "Waterborne sediment and pollutant transport into lakes and accumulation in lake sediments /." Stockholm : Department of Physical Geography and Quaternary Geology, Stockholm University, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-8302.

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10

O'Connor, Jim E. "Hydrology, hydraulics, and sediment transport of pleistocene Lake Bonneville flooding on the Snake River, Idaho." Diss., The University of Arizona, 1990. http://hdl.handle.net/10150/191159.

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Approximately 14,500 years ago, Pleistocene Lake Bonneville discharged 4750 km 3 of water over the divide between the closed Bonneville Basin and the watershed of the Snake River. The resulting flood, emanating from the divide at Red Rock Pass, Idaho, followed the present courses of Marsh Creek, the Portneuf River, and the Snake and Columbia Rivers before reaching the Pacific Ocean. For the 1100 kilometers between Red Rock Pass and Lewiston, Idaho, the Bonneville Flood left a spectacular array of flood features that have allowed for geologic reconstruction and quantitative evaluation of many a

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11

Handley, Michelle Anne. "The distribution pattern of algal flora in saline lakes in Kambalda and Esperance, Western Australia." Thesis, Curtin University, 2003. http://hdl.handle.net/20.500.11937/413.

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The study has attempted to characterise the physicochemical limnology and distribution of algal flora of two salt lake systems in Western Australia, one from the coastal Esperance region and the other from the inland Kambalda region. Climatic conditions, water regimes and physicochemistry were found to differ markedly between the two lake systems and a total of 171 algal taxa, representing five divisions, were recorded. Of these, 82 were members of Bacillariophyta, 48 of Cyanophyta, 33 of Chlorophyta, two of Euglenophyta and six of Dinophyta. The physical limnology of salt lakes in the Esperan

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12

Schipek, Mandy. "Treatment of acid mine lakes." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2012. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-79119.

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Mining of lignite in Lusatia has a long history of over 100 years. The extracted brown coal is utilized to generate electricity in three large power plants: Jänschwalde, Boxberg, and Schwarze Pumpe. With an annual carbon dioxide (CO2) output of approximately 50 million tons, these power plants are among Germany’s large-scale CO2 emitters. The environmental impact from open-pit mining is of a considerable degree and currently poses a challenging problem. The groundwater deficit in 1990 was 7 billion m3 over a surface area of approximately 2100 km2 (Luckner, 2006a) and was bisected in value unti

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13

Suarez, Rodriguez Marco. "Environmental control of methanotrophsin lakes." Thesis, Uppsala universitet, Institutionen för biologisk grundutbildning, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-170260.

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Aerobic methanotrophs (MOB) are a functional group of proteobacteria that use methane as their only energy and carbon source. Phylogenetically, such methanotrophs are affiliated with present alpha and gamma proteobacteria. Methanotrophic microorganisms play an essential role in the methane cycle, since they to a great extent reduce potential methane emissions to the atmosphere. In stratified lakes the aerobic methanotrophs are commonly present at the oxic-anoxic interfaces. This study aims to identify the environmental factors that could regulate the distribution of aerobic methanotrophs in th

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14

Pagaling, Eulyn. "Microbial diversity of Chinese lakes." Thesis, University of Leicester, 2007. http://hdl.handle.net/2381/7662.

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15

Emmrich, Matthias. "Fish assemblages in European lakes." Doctoral thesis, Humboldt-Universität zu Berlin, Landwirtschaftlich-Gärtnerische Fakultät, 2013. http://dx.doi.org/10.18452/16681.

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Fischgemeinschaften in Seen sind zunehmenden Umweltveränderungen unterworfen. Die Analyse des Einflusses abiotischer und biotischer Faktoren auf die Größenstruktur von Fischgemeinschaften ist entscheidend, um die Entwicklung von Seeökosystemen im Zuge von Umweltveränderungen vorhersagen zu können. Es ist jedoch schwierig Fische in Seen zu beproben, da Fanggeräte selektiv sind. Die Qualität und Vergleichbarkeit von Fischfängen durch Angler, Kiemennetze, Schleppnetze und Hydroakustik wurden untersucht. Anglerfänge eignen sich begrenzt für vergleichende Fischbestandsuntersuchungen. Vertikale Hyd

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16

Siitonen, M. (Miikka). "Lakes and seas of Titan." Bachelor's thesis, University of Oulu, 2019. http://jultika.oulu.fi/Record/nbnfioulu-201908242817.

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Abstract. This thesis reviews studies about the lakes and seas of Saturn’s moon, Titan. Conditions on Titan’s surface are first estimated to validate that substances in Titan’s atmosphere can exist in liquid phase. This is followed by descriptions of devices that have been used to study Titan from Earth, space and on its surface. Research concerning the detection and distribution of the lakes are then discussed. Features of the lakes such as surface areas, chemical compositions and formations like shores are looked into. Results from models that describe liquid currents driven by tidal forces,

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17

Chang, Wei. "Fate of Nonylphenol in lakes: : Case study modelling of two small lakes in Stockholm, Sweden." Thesis, KTH, Industriell ekologi, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-58638.

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Nonylphenol is a widely used organic compound which has been reported to have potential risk to aquatic environment. According to the result of recent studies, it has been detected in many lakes in Stockholm, Sweden, which raised great concern. In this thesis, a dynamic fate model was adopted and modified from literature in order to study the distribution and concentration of nonylphenol in small lakes, guide the field sampling and provide information for corresponding decision making. Two lakes in Stockholm, Lake Trekanten and Lake Drevviken, were selected as case studies. Another model was i

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18

Blakney, Shima Dorice. "Diatoms as indicators of eutrophication in lakes, Pine Lake, Alberta, Canada, a case study." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ28918.pdf.

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19

Cox, Andrew Owen. "The igneous rocks of the western margin of Lake Rotoroa, Nelson Lakes National Park." Thesis, University of Canterbury. Geology, 1994. http://hdl.handle.net/10092/10100.

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The Rotoroa Complex located in NW Nelson, represents a remnant plutonic fragment of an extensive subduction system active between 140-130 Ma. The arc system has been subject to large scale transcurrent faulting during the Early Cretaceous. The result is a series of "dismembered Mesozoic volcanic and plutonic arc associations that are sandwiched between terranes of the Western and Eastern Provinces" (Kimbrough et al 1993). This association is collectively described as the Median Tectonic Zone (MTZ) by Bradshaw (1993), and Kimbrough et al (1993). The rocks encompassed by the term Rotoroa Compl

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20

DeGoosh, Katie E. "Development and Application of a Paleolimnological Inference Model to Identify Historically Fishless Lakes in Maine." Fogler Library, University of Maine, 2007. http://www.library.umaine.edu/theses/pdf/DeGooshKE2007.pdf.

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21

Ropp, David L. "Numerical study of shallow water models with variable topography." Diss., The University of Arizona, 2000. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_2000_165_sip1_w.pdf&type=application/pdf.

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22

Wood, Hannah. "The benthic ecology and food web dynamics of Te Waihora (Lake Ellesmere)." Thesis, University of Canterbury. School of Biological Sciences, 2008. http://hdl.handle.net/10092/2274.

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Coastal and shallow lakes are often subjected to eutrophication due to nutrients from catchment farming activities. Lake Ellesmere (Te Waihora) is a hyper-eutrophic lake which has gained recent attention because of concerns over its ecological health and fishery status. This study investigated the benthic ecology of the lake by extensive spatial and temporal sampling. Eight littoral sites were sampled on a single occasion, and 20 benthic sites were sampled once per season for one year. Water chemistry conditions, substrate and invertebrate communities varied significantly around the lake. Sali

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23

Morillo, Sebastian. "Engineering solutions to water quality problems in lakes." University of Western Australia. Centre for Water Research, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0153.

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Lake restoration and management strategies focus on reducing the negative impacts of enriched or polluted inflows. These strategies become of paramount importance when lakes are used for recreational and/or drinking water purposes. Long term control of eutrophication and turbidity problems associated with large inflow loads is usually oriented to catchment management. Although it has been suggested that this is the correct long term approach, public concerns usually require a short term solution. In addition, due to political and economic costs related to changes in catchment management, in-la

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24

Dubois, Kristal D. "Carbon cycling in northern temperate lakes." Thesis, University of Ottawa (Canada), 2006. http://hdl.handle.net/10393/29347.

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We present two novel stable isotope methods for measuring lake metabolism and compare the results to traditional techniques. The delta 18O method measures planktonic gross primary production (GPP) from dissolved oxygen concentrations, isotopes and respiration (R) and the delta 13C method measures "whole-lake" GPP and R from dissolved oxygen and carbon concentrations and isotopes. All three methods showed GPP was greater than R over the ice-free season and estimates of GPP were not significantly different. There was also no significant difference in R as measured by bottle incubations and the d

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25

Rosentau, Alar. "Development of proglacial lakes in Estonia /." Tartu, Estonia : Tartu University Press, 2006. http://dspace.utlib.ee/dspace/bitstream/10062/120/1/rosentau_uus.pdf.

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26

Andersson, Tord. "Mercury and radiocesium in Swedish lakes." Doctoral thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 1993. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-102336.

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Two large, nationwide monitoring data sets were compiled and statistically treated in order to create a national picture of the problems with high contents of mercury (Hg) and radiocesium (137Cs) in fish. Beside these two data sets, 75 lakes in four counties (Västernorrland, Gävleborg, Örebro and Kronoberg) were studied in connection to an evaluation of different measures to decrease the content of Hg and 137Cs in fish. An important objective was to investigate and determine the relationship between the content in fish and the load of the elements and how this relationship was affected by diff

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27

Upadhyay, Neerja. "Management of the Lea Marston lakes." Thesis, University of Birmingham, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.564485.

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One of the practices for dealing with water pollution from point and non point pollution sources is the use of on-line purification lakes. The Lea Marston lakes were built in the early 1980' s to reduce the pollution load transported by the River Tame to the River Trent. The lakes operate on the principle of particle bound contaminant sedimentation. The lakes were observed to be efficient at reducing suppressed (ATU) biochemical oxygen demand (BOD(ATU)), suspended solids (SS) and metals under dry weather flow and wet weather flow conditions. However, ammoniacal-nitrogen (ammonia) is observed t

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28

Mwatha, Wanjiru Elizabeth. "Microbial ecology of Kenyan soda lakes." Thesis, University of Leicester, 1991. http://hdl.handle.net/2381/35400.

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A combination of geological, geographical and climatic conditions; favour the evolution of stable alkaline environments, such as the soda lakes of East African Rift Valley. These lakes are often saline as well as alkaline. Soda lakes are potentially the best sources of alkaliphilic microoganisms, but they are virtually unexplored. The few studies done indicate that soda lakes have very high primary productivity, due to the dense population of phototrophic microorganisms, either cyanobacteria or phototrophic eubacteria or both. Soda lakes are therefore, likely to support a large population of o

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29

Simoncelli, Stefano. "Hydrodynamics of migrating zooplankton in lakes." Thesis, University of Bath, 2018. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.761048.

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Zooplankton diel vertical migration (DVM) plays a pivotal role in controlling trophic interactions and nutrient transport in lakes and oceans. Understanding behaviours and responses of diel migrators is therefore essential to knowledge of physical processes and ecosystem functioning. This thesis investigated zooplankton hydrodynamics during the DVM in freshwater bodies through two different research topics. The first research explored the potential of swimming zooplankton hydrodynamics in affecting lake turbulent and biological processes. Past research suggests that zooplankton may be able to

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30

Rapp, Lars. "Critical loads of acid deposition for surface water : exploring existing models and a potential alternative for Sweden /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 2001. http://epsilon.slu.se/avh/2001/91-576-6091-3.pdf.

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31

Rozmarynowycz, Mark Jeremy. "Spatio-Temporal Distribution Of Microbial Communities In TheLaurentian Great Lakes." Bowling Green State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1416427796.

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32

Handley, Michelle Anne. "The distribution pattern of algal flora in saline lakes in Kambalda and Esperance, Western Australia." Curtin University of Technology, Department of Environmental Biology, 2003. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=14435.

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The study has attempted to characterise the physicochemical limnology and distribution of algal flora of two salt lake systems in Western Australia, one from the coastal Esperance region and the other from the inland Kambalda region. Climatic conditions, water regimes and physicochemistry were found to differ markedly between the two lake systems and a total of 171 algal taxa, representing five divisions, were recorded. Of these, 82 were members of Bacillariophyta, 48 of Cyanophyta, 33 of Chlorophyta, two of Euglenophyta and six of Dinophyta. The physical limnology of salt lakes in the Esperan

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33

Wright, Peggy J. "Great Lakes lake trout early mortality syndrome (EMS) contaminants, thiamin status, and their possible interaction /." Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/4366.

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Thesis (Ph.D.)--University of Missouri-Columbia, 2006.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (March 1, 2007) Vita. Includes bibliographical references.

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34

Korsman, Tom. "Acidification trends in Swedish lakes : an assessment of past water chemistry conditions using lake sediments." Doctoral thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 1993. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-140821.

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This thesis presents temporal perspectives of lake acidification in Sweden. Sediment records have been used to study timing, trends and causes of acidification, and two different techniques for assessing past lake-water acidity are presented. A new technique for pH prediction, based on near-infrared (NIR) spectroscopy of surface sediments, is developed. This study shows that there is a pH related fraction of lake sediments that can be recorded by NIR analysis. Relationships between NIR spectra of surface sediment samples and measured lake-water pH values, and between NIR spectra of sediment co

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35

Smirnov, Anna. "Polycyclic aromatic hydrocarbons in sediments of Lake Erie, Great Lakes : spatial distribution, sources and pathways /." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq23174.pdf.

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36

Osika, Mary Isabel. "Potential impacts of clearcut logging on lake trout (Salvelinus namaycush) reproduction in northwestern Ontario lakes." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape16/PQDD_0012/MQ33427.pdf.

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37

Zuniga, Silvia. "Bat species richness and activity in forest habitats close to lakes versus far from lakes, in Sweden." Thesis, Linnéuniversitetet, Institutionen för biologi och miljö (BOM), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-29992.

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The long-term effects of large-scale changes in forestry, agriculture and other land use on habitats and the large-scale expansion of wind farming affects bats foraging environments. In order to predict consequences of exploitations on local bat species and populations, good surveys are important. To get good background information for an Environmental Impact Assessment (EIA) it is crucial to rapidly assess which areas are most important for bats. The aim of this work was to measure the importance of the two types of forest environment for bats foraging : forest areas located close to or far

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38

PASTORINO, PAOLO. "ALPINE LAKES, INDICATORS OF GLOBAL CHANGE: ECOLOGICAL CHARACTERIZATION AND ENVIRONMENTAL PRESSURES IN TWO LAKES FROM ITALIAN ALPS." Doctoral thesis, Università degli Studi di Trieste, 2020. http://hdl.handle.net/11368/2961321.

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Alpine lakes are among the most remote aquatic environments in Europe. Although remote, their small size and the high turnover of surface waters render alpine catchments extremely receptive and vulnerable to anthropogenic impact on a local (i.e., water abstraction, tourism, introduction of alien species) and a global scale (long-range transport of pollutants, acid rain, global warming). Alpine lakes are indicators of global environmental change and “early warning systems” for the mountain environment. Many studies have considered single lakes or groups of lakes; however, because of the wide e

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39

Harlin, Hugo. "2D Modelling of Phytoplankton Dynamics in Freshwater Lakes." Thesis, Uppsala universitet, Avdelningen för beräkningsvetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-388868.

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Phytoplankton are single celled organisms capable of phytosynthesis, and are present in all the major oceans and lakes in the world. Phytoplankton contribute to 50% of the total primary production on Earth, and are the dominating primary producer in most aquatic ecosystems. This thesis is based on the 1D deterministic model by Jäger et. al. (2010) which models phytoplankton dynamics in freshwater lakes, where phytoplankton growth is limited by the availability of light and phosphorus. The original model is here extended to two dimensions to include a horizontal dimension as well as a vertical

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40

Gale, Emma Jane. "The hydrodynamics of intermittently closing and opening lakes and lagoons." University of Western Australia. School of Environmental Systems Engineering, 2006. http://theses.library.uwa.edu.au/adt-WU2007.0025.

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[Truncated abstract] Coastal lagoons play an important role in the transport of materials between the coastal zone and the ocean. Understanding the dynamics associated with the movement of waters between and within these systems is therefore significant in defining the ecological health of the system. An important sub category of lagoons is Intermittently Closing and Opening Lakes and Lagoons (ICOLLs). These systems lack any significant river inflow; have a restricted sill type inlet and experience intermittent exchange with the ocean, making them susceptible to the retention of nutrients and

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41

Arnold, Robert John. "Mathematical modelling of wind effects on closed lakes /." Title page, contents and summary only, 1985. http://web4.library.adelaide.edu.au/theses/09PH/09pha758.pdf.

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42

Jiang, Hongchen. "GEOMICROBIOLOGICAL STUDIES OF SALINE LAKES ON THE TIBETAN PLATEAU, NW CHINA: LINKING GEOLOGICAL AND MICROBIAL PROCESSES." Oxford, Ohio : Miami University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=miami1193164091.

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43

Maki, Angela Pelkie. "Effects of Air Temperature and Lake Ice on Snowfall on the South Shore of Lake Superior." ScholarWorks@UNO, 2009. http://scholarworks.uno.edu/td/941.

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Lake Superior is a forcing factor for local weather systems, causing substantial amounts of lake effect snow in the winter (particularly on the south shore). This study assesses decreasing ice cover of Lake Superior and its effects upon synoptic weather factors. Data were collected from eleven National Weather Service (NWS) stations located on the south shore of the lake. Rainfall and snowfall amounts from December to May were regressed on percent ice coverage and average monthly temperatures from 1972-2002. Ice coverage and average monthly temperature had a negative relationship with sn

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44

Yoshida, Takehito. "Relative importance of top-down and bottom-up effects on rotifers in lakes : Analyses within and among lakes." 京都大学 (Kyoto University), 2001. http://hdl.handle.net/2433/150867.

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45

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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46

Yagbasan, Ozlem. "Modeling Of Mogan And Eymir Lakes Aquifer System." Phd thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608456/index.pdf.

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Mogan and Eymir Lakes, located 20 km south of Ankara, are important aesthetic, recreational, and ecological resources. DikilitaS and ikizce reservoirs, constructed on upstream surface waters, are two man-made structures in the basin encompassing an area of 985 km2. The purpose of this study is (1) to quantify groundwater components in lakes&rsquo<br>budgets, (2) to assess the potential impacts of upstream reservoirs on lake levels, and (3) to determine effects of potential climatic change on lakes and groundwater levels in the basin. Available data have been used to develop a conceptual model

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47

Winston, Barry S. "Satellite Remote Sensing of Lake Ice Meltout Patterns Near Barrow, Alaska." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1276980832.

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48

Clasen, Jessica Liz. "Viral ecology of lakes : a descriptive and ecological study of viruses that infect phytoplankton." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/909.

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Resumo:

Since the 'discovery' of the high abundance of viruses in aquatic environments, it has been generally assumed that viruses in lakes are similar to those in oceans. I directly compared these two systems using a large, robust data set. Viral abundance was significantly different among the surveyed environments. The relationship between viral and bacterial abundance indicated a fundamental difference between lakes and oceans, and suggested that viruses infecting phytoplankton may be more important in lakes. Molecular techniques (PCR & DGGE) were used to document spatial and temporal variations i

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49

Berger, Stella A. "Environmental variables and plankton communities in the pelagic of lakes enclosure experiment and comparative lake survey /." [S.l.] : [s.n.], 2005. http://edoc.ub.uni-muenchen.de/archive/00004575.

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50

Berger, Stella Angela. "Environmental variables and plankton communities in the pelagic of lakes: enclosure experiment and comparative lake survey." Diss., lmu, 2005. http://nbn-resolving.de/urn:nbn:de:bvb:19-45759.

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