Dissertations / Theses: 'Lakme'

1

Lynn, Robert. "Guidelines for transcribing coloratura opera arias for tuba, with transcriptions of three arias by Vivaldi, Gluck, and Delibes." Virtual Press, 2005. http://liblink.bsu.edu/uhtbin/catkey/1317923.

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2

Lake, Charla Marie. "Increasing interest in science and science careers through partnerships with science professionals." Montana State University, 2012. http://etd.lib.montana.edu/etd/2012/lake/LakeC0812.pdf.

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This action research-based classroom project was set into place to answer the question, "Do partnerships between science professionals and students increase opinion of learning, science in school, going to college, and students' interest in pursuing science related careers?" After six science professionals were invited to come into our classroom with a presentation of their choice, a positive increase in learning and interest related to science were confirmed by the results.

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3

Orellana, S. Manuel, and Nicolás Spencer. "LaMe." Tesis, Universidad de Chile, 2010. http://www.repositorio.uchile.cl/handle/2250/101296.

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La presente tesis fue realizada por Manuel Orellana y Nicolás Spencer, ella representa el análisis obtenido de la obra “LaMe”. LaMe es definido dentro de la misma tesis como: “LaMe es la experiencia en medio controlado para el desarrollo y documentación de la génesis de laboratorio medial con fines netamente artísticos. Medio controlado que se comenzó a desarrollar en la ciudad de Santiago de Chile entre diciembre 2007 y enero 2009 en Universidad de Chile / Facultad de Artes / escuela de postgrado / Magíster en Artes Mediales.” Es así como se delimitan los parámetros que serán discutidos a continuación.

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4

Taylor, Julie Ellen. "Lake Unloosed." The University of Montana, 2009. http://etd.lib.umt.edu/theses/available/etd-06012009-102336/.

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5

Cragwall, Jasper Albert. "Lake Methodism." 24-page ProQuest preview, 2007. http://proquest.umi.com/pqdweb?index=0&did=1335357971&SrchMode=1&sid=5&Fmt=14&VInst=PROD&VType=PQD&RQT=309&VName=PQD&TS=1220030683&clientId=10355.

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6

Misiti, Patrick J. "The lake." Laramie, Wyo. : University of Wyoming, 2009. http://proquest.umi.com/pqdweb?did=1939245941&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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7

Blauvelt, Ryan. "Lake Pleasant." Digital Commons @ Butler University, 2018. https://digitalcommons.butler.edu/grtheses/505.

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Lake Pleasant, a work for wind ensemble, receives its title from the composer’s memories of visiting a cottage on a small lake that straddles the border of Indiana and Michigan. The primary influence of the piece derives from the howling sound produced by the echoes of traffic noise one hears while standing on the opposite side of the lake in the quiet of night. The recollection of this soundscape takes the musical form of nine clarinets spread throughout the audience accompanied by pairs of flutes, oboes, saxophones, trumpets, and a single piccolo. While the placement of performers in the audience allows for the music to emulate the atmosphere evoked by the work’s influence through the use of physical space and timbral similarities, the spacial relationships explored through the music also serve as primary structural elements.

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8

VanDeHey, Justin A. "Genetic structure among Lake Michigan's lake whitefish spawning aggregates /." Link to full text, 2007. http://epapers.uwsp.edu/thesis/2007/vandehey.pdf.

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9

Roningen, Jeanne Marie. "Hydrogeologic Controls on Lake Level at Mountain Lake, Virginia." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/31950.

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Mountain Lake in Giles County, Virginia, has a documented history of severe natural lake-level changes involving groundwater seepage [Jansons, 2004] that extend over the past 4200 years [Cawley, 1999], and as of December 2010 the lake was about 2% full by volume. Situated in the Valley and Ridge physiographic province on the axis of a plunging anticline and straddling contacts between three upper Ordovician and lower Silurian formations, the lake is one of two natural lakes in Virginia.

A daily water balance, geophysical surveying with dipole-dipole electrical resistivity, and chemical sampling have shed light on the nature of flow to and from the lake, including: 1) the steady nature of net groundwater outflow, 2) the seasonal response to precipitation of a forested first-order drainage system in fractured rock, 3) the influence of a fault not previously discussed in literature regarding the lake, and 4) the possibility of flow pathways through karst features.

Results from a water balance indicate steady lake drainage and significant recharge when vegetation is dormant, particularly during rain-on-snow melt events. The resistivity profiles display a highly heterogeneous subsurface and reveal low-resistivity areas that suggest flow pathways to and from the lake. Well logs, satellite images, and outcrop observations appear to confirm the presence of a fault to the east of the lake. Chemical evidence suggests that karst features may be present in the upper Reedsville-Trenton formation underlying the lakebed.
Master of Science

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10

Hosack, Michael A. "Population dynamics of lake whitefish in Lake Pend Oreille, Idaho /." Link to full text, 2007. http://epapers.uwsp.edu/thesis/2007/Hosack.pdf.

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Thesis (M.S.)--University of Wisconsin--Stevens Point, 2007.
Submitted in partial fulfillment of the requirements for the degree Master of Science in Natural Resources (Fisheries), College of Natural Resources. Includes bibliographical references (leaves 156-174).

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11

Watson, Michelle Marie. "Investigating the relationship between lake morphology and lake trophic state." Thesis, University of Ulster, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.529552.

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12

McGuire, Kevin Michael. "Comparative Sedimentology of Lake Bonneville and the Great Salt Lake." BYU ScholarsArchive, 2014. https://scholarsarchive.byu.edu/etd/4022.

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Ooids of Great Salt Lake, Utah (GSL) have been studied periodically by geologists since the 1960's. These studies have documented the locations of ooid deposits, bulk composition, mineralogy, and internal structural variations of GSL ooids. Ooids have also been identified in sediment cores from lakes predating the Great Salt Lake, but similar descriptions have not been made for these ooids. Samples of ooids from cores in Pilot Valley, UT/NV and Knolls, UT have been obtained, along with samples from the Great Salt Lake at Bridger Bay and Rozel Point. The cortical fabrics and crystal morphologies of these ooids were studied in thin section and under scanning electron microscopy. Examples of cortex morphologies previously documented in GSL ooids were observed, to some degree, in ooids from Pilot Valley and Knolls. Knolls ooids had unique cortical layers that were resistive to acid and appeared to be dominantly comprised of clays. Bulk dissolution ages were obtained for ooids from each location. Ooids form both Pilot Valley and Knolls had average ages that pre-date Lake Bonneville, whereas GSL ooids from Bridger Bay had an average age of roughly 3,500 years before present (yr BP) and Rozel Point ooids had an average age of 500 yr BP. Along with a bulk age, ooids from Bridger Bay at the Great Salt Lake were subjected to serial dissolutions during which a split of gas was taken from each stage and an age was obtained. Ages spanned 7,000 years with the final dissolution stage delivering an average age of 9,000 yr BP. Based on this data it is likely that GSL ooids at Bridger Bay have been forming since the cessation of Lake Bonneville and that many of the nuclei in Bridger Bay ooids are remnant peloids from the Gilbert level of Lake Bonneville.

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13

Bartruff, Anthony Lynn. "A Characterization of Lake Abert Tufa Mounds Lake Abert, Oregon." PDXScholar, 2013. https://pdxscholar.library.pdx.edu/open_access_etds/1061.

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A series of tufa mounds is found within the northern basin of Lake Abert, located within southeastern Oregon. The mounds have been divided into 3 main groups and 1 sub-group (A1, A2, B, and C) based upon spatial and textural considerations. Mound groups appear at two different elevations: the 1310 meter elevation (Groups A2, B, and C), and the 1318 meter elevation (Group A1). Published carbon age dating of the Lake Abert 1325 meter strandline and the 1310 meter strandline indicates that the mounds were formed during the Late Pleistocene/Early Holocene. Facies analysis and mineralogical analysis of the mounds indicates that the mounds were primarily formed subaqueously during a lake regression, supporting oxygen isotope data from previous researchers. Magnetometer data within Groups A1 and A2 suggests that the mounds are associated with a series of magnetic lows which are oriented in joint sets (NW-SE, and N-S) which match the orientation of faulting within the region. While there appears to be another early mound building episode, no direct evidence confirms this.

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14

McMahon, W. Arthur. "Lake education project: An environmental program for Lake Elsinore students." CSUSB ScholarWorks, 1994. https://scholarworks.lib.csusb.edu/etd-project/952.

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15

Kelley, John Gormley Walsh. "One-way coupled atmospheric-lake model forecasts for Lake Erie /." The Ohio State University, 1995. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487867541733975.

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16

Leodolter, Johannes. "A Statistical Analysis of the Lake Levels at Lake Neusiedl." Austrian Statistical Society, 2008. http://epub.wu.ac.at/5634/1/296%2D1009%2D1%2DSM.pdf.

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A long record of daily data is used to study the lake levels of Lake Neusiedl, a large steppe lake at the eastern border of Austria. Daily lake level changes are modeled as functions of precipitation, temperature, and wind conditions. The occurrence and the amount of daily precipitation are modeled with logistic regressions and generalized linear models.

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17

Weller, Samantha Joanne. "The Lake Theatre." Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/53947.

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At the beginnings of this thesis, the importance was solely focused on the design of an independent multipurpose theater and the transitions between the public area and backstage. As the year and project progressed, it changed to become a realization and study of architectural experiences within a space. After choosing a site within the Snoqualmie National Forest in Seattle overlooking Lake Serene, decisions were made to design a theater that would not hinder the natural landscape but immerse the audience in it. Years of backpacking, camping, and hiking, I have personal experiences and memories of walking through the shafts of light shining through the canopies of the trees or feeling the dampness that sticks to clothes as you roam through the fog rolling off the mountains. The orientation and exterior choices were made as to not take away from an audience member's experience of the natural surroundings of the area. Blending the building within the mountain hides it from view as to not over take the landscape behind it, the bridge connects the two mountains to each other and the building itself creates an axis towards the lake. The movement through the lobby was designed as a natural progression towards the view as a canopy of timber surrounds the audience, mimicking the trees outside. How we perceive architecture is how we experience it. Creating a space that would not only flow with its natural environment but also have movement inside to assist each individual, whether it is a visitor, stagehand, technician, or performer was my end goal. Focusing my efforts on the visitor, I was able to learn the importance of moments and the simplicity of details. Taking ultimately what Juahani Pallasmaa is quoted saying that "the architectural experience calls for the senses of balance, movement, orientation, continuity, time, self, and existence."
Master of Architecture

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18

Scheuerell, Mark David. "Environmental drivers of spatial and temporal variability in lakes /." Thesis, Connect to this title online; UW restricted, 2002. http://hdl.handle.net/1773/5144.

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19

Bigelow, Patricia E. "Predicting areas of lake trout spawning habitat within Yellowstone Lake, Wyoming." Laramie, Wyo. : University of Wyoming, 2009. http://proquest.umi.com/pqdweb?did=1939365861&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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20

Cox, Benjamin Samuel. "Assessment of an invasive lake trout population in Swan Lake, Montana." Thesis, Montana State University, 2010. http://etd.lib.montana.edu/etd/2010/cox/CoxB0810.pdf.

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The recent invasion of lake trout into the Swan River drainage in Northwest Montana threatens one of the last remaining recreational bull trout fisheries in the USA. An inter-agency group is implementing an experimental lake trout suppression program on Swan Lake. The objectives of this study were to establish a baseline data set on the lake trout population in Swan Lake concurrently with the experimental removal effort, simulate alternative management scenarios using matrix models and identify spawning locations of lake trout to target adult fish and embryos. A commercial gill-net sampling effort provided data to estimate abundance, size structure, age structure, growth, condition, maturity, fecundity, and mortality of lake trout in Swan Lake. Lake trout in Swan Lake grew rapidly, attained large sizes, and were in high condition. The size and age structure of lake trout sampled was skewed towards juvenile lake trout, indicating the population was growing rapidly. Matrix-model simulations also indicated the lake trout population would continue to grow with no suppression efforts, but suppression efforts could reduce the population growth rate. Population growth was particularly sensitive to changes in age-0 survival in population models. Elasticity analysis of matrix simulations indicated survival from birth to sexual maturity, followed by survival of adult fish contributed most to population growth. Lake trout spawning locations were identified using ultrasonic telemetry, short-set gill nets, and in-situ egg nets. Spawning locations identified with acoustic telemetry were confirmed by capturing gravid lake trout in gill nets and lake trout eggs in the substrate. These results suggest that the inter-agency group should focus removal efforts on sub-adult and adult lake trout at if extirpation of the population is the goal. Given the uncertainty in the vital rates and the potential bias in exploitation rates used to model suppression scenarios, annual suppression efforts should be increased from the 2008 level to ensure a decline in the lake trout population.

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21

McKinnon-Newton, Laurie. "Ecology of plankton in a terminal lake Walker Lake, Nevada, USA /." abstract and full text PDF (free order & download UNR users only), 2007. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1446303.

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22

Corradin, Lisa M. "Recruitment and growth dynamics of lake trout in western Lake Superior /." Link to Abstract, 2004. http://epapers.uwsp.edu/abstracts/2004/Corradin.pdf.

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23

Schnellmann, Michael P. Schnellmann Michael P. "Late quaternary mass movements in a perialpine lake (Lake Lucerne, Switzerland) /." [S.l.] : [s.n.], 2004. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=15533.

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24

Nielsen, Shauna. "Sediment Dynamics of a Shallow Hypereutrophic lake: Lake Jesup, Florida, USA." FIU Digital Commons, 2011. http://digitalcommons.fiu.edu/etd/511.

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Improved knowledge of sediment dynamics within a lake system is important for understanding lake water quality. This research was focused on an assessment of the vertical sediment flux in Lake Jesup, a shallow (1.3 m average depth) hypereutrophic lake of central Florida. Sediment dynamics were assessed at varying time scales (daily to weekly) to understand the transport of sediments from external forces; wind, waves, precipitation and/or runoff. Four stations were selected within the lake on the basis of water depth and the thicknesses of unconsolidated (floc) and consolidated sediments. At each of these stations, a 10:1 (length to diameter) high aspect ratio trap (STHA) was deployed to collect particulate matter for a one to two week period. The water and sediment samples were collected and analyzed for total carbon (TC), total phosphorus (TP) and total nitrogen (TN). Mass accumulation rates (MAR) collected by the traps varied from 77 to 418 g m-2 d-1 over seven deployments. TN, TP and TC sediment concentrations collected by the traps were consistently higher than the sediments collected by coring the lake bottom and is most likely associated with water column biomass. A yearly nutrient budget was determined from August 2009 to August 2010 with flux calculated as 2,033,882 mt yr-1.

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25

Herbst, Seth. "Status of Lake Whitefish (Coregonus Clupeaformis) in Lake Champlain, 2006-2010." ScholarWorks @ UVM, 2011. http://scholarworks.uvm.edu/graddis/107.

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Lake whitefish (Coregonus clupeaformis), in the family Salmonidae, is a coldwater species that is widely distributed in North America. Throughout their range, whitefish support one of the most economically valuable freshwater fisheries and were also commercially fished in Lake Champlain. My goals were to quantify seasonal diet, determine temporal and spatial changes in larval abundance, evaluate biological parameters (size and age structure, sex composition, growth, condition, energy density, and fecundity), and determine if the introduction of zebra mussels (Dreissena polymorpha) to Lake Champlain in 1993 had similar affects on the whitefish population as seen in many of the Great Lakes. Whitefish were collected year-round using gillnets and bottom trawls. Diet was quantified seasonally. Temporal and spatial changes in larval abundance were determined by ichthyoplankton net catches. A comparison of scales, fin rays, and otoliths indicated that otoliths provided the lowest bias and highest precision. Age estimation using otoliths generated a wider range of ages and greater number of age classes when compared with scales and fin rays and therefore age and growth were determined using otolith age estimates. Growth parameters of the entire main lake population were estimated using the von Bertalanffy growth model (K = 0.20; L∞ = 598 mm), mean condition using Fulton’s K condition factor (K = 1.05) and by determining energy density, and fecundity using the gonadosomatic index (GSI = 13.9). Larval whitefish were abundant throughout much of the main lake, but absent in Missisquoi Bay and rare in Larabee’s Point, the historic commercially fished locations. Diet varied seasonally; whitefish fed primarily on large numbers of fish eggs in the spring and transitioned to foraging on mysids in the summer and gastropods in the fall and winter. Surprisingly, zebra mussels made up less than 1% of the diet and appeared in less than 10% of the stomachs analyzed, despite being abundant in the benthos. Biological parameters (size and age structure, sex composition, growth, condition, energy density, and fecundity) of whitefish in Lake Champlain were typical of an unexploited population, with multiple length and age classes represented. Condition was high and representative of a diet with high energy content. Whitefish in Lake Champlain had similar high energy density to those in Lake Erie, where declines in whitefish condition were not associated with dreissenid invasions, and had greater mean energy density than whitefish in lakes Michigan, Huron, and Ontario. I concluded that the current whitefish population in the main lake of Lake Champlain is typical of an unexploited population. However, whitefish apparently no longer use Missisquoi Bay and Larabee’s Point for spawning, most likely because of human alteration of habitat conditions. The high condition factor and energy density of whitefish in Lake Champlain, in contrast to the Great Lakes, is probably a result of their ability to attain sufficient energy sources from an intact native forage base.

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26

Marsham, John. "Lake temperatures : thermal remote sensing and assimilation into a lake model." Thesis, University of Edinburgh, 2003. http://hdl.handle.net/1842/12576.

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27

Bergstedt, Roger Allen. "Seasonal bathythermal habitat use by lake trout and lake whitefish in Lake Huron as measured with implanted archival tags." Diss., Connect to online resource - MSU authorized users, 2008.

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28

Dodson, Susan Boyd. "Eutrophication Potential of Reclaimed Wastewater: An Ecological Study of Water Reuse in an Urban Texas Reservoir." Thesis, North Texas State University, 1987. https://digital.library.unt.edu/ark:/67531/metadc935568/.

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This study determined effects of addition of secondarily treated municipal wastewater effluent on an urban reservoir receiving system. Monthly water quality monitoring of the receiving reservoir and the wastewater, chemical analysis, and monthly laboratory algal assays, were conducted from September 1984 to September 1985. The nutrient status and algal growth potential of the receiving water and the wastewater confirmed the biostimulatory properties of the wastewater. Field validation studies were conducted using limnocorrals. Tertiary treatment of the wastewater using chemical coagulation precipitation with alum and ferric chloride reduced phosphorus concentrations in the wastewater to levels which supported significantly less algal biomass than untreated wastewater. These studies indicate ferric chloride to be a more effective coagulant for phosphorous removal alum.

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29

Wilks, Taryn. "Response of benthic invertebrate fauna to fluctuating lake levels and salinity concentrations in Lake Ellesmere/Te Waihora." Thesis, University of Canterbury. Biological Sciences, 2010. http://hdl.handle.net/10092/5008.

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Lake Ellesmere/Te Waihora is one of New Zealand’s largest coastal, brackish water lakes. It has nationally significant wetland bird populations and is regionally important for iwi. The lake regularly experiences fluctuations in water level, resulting in a continually expanding and contracting littoral zone. This study investigated the impacts of these water level changes on the ecology of the lake. Water chemistry results collected over 12 months, confirm the lake is hypertrophic, due to high nutrient (nitrogen and phosphorus) concentrations resulting in high chlorophyll a levels and low water clarity. Water chemistry conditions were collected at five locations around the lake and showed marked spatial variation, with the eastern most end (Kaituna Lagoon) having generally the best water quality and lowest salinity (mean 4.9 ppt). Mean concentrations of total nitrogen ranged from 1.63 to 2.4 mg/L, chlorophyll a from 50 to 148 ug/L and total suspended solids from 151 – 248 mg/L. Seasonally, highest nutrient concentrations (mean, total nitrogen = 2.625 mg/L, dissolved reactive phosphorus = 0.059 mg/L and total phosphorus = 0.365 mg/L) occurred in late summer months (February – March), slightly decreasing but remaining high throughout winter. The benthic invertebrate community was surprisingly diverse, Crustacea (Paracorophium excavatum), Oligochaeta, Mollusca (Potamopyrgus antipodarum) and Chironomidae (Chironomus zealandicus) were dominant community members in the littoral zone, although 24 other taxa were collected. At high water levels, taxonomic richness increased in the eulittoral zone, while decreasing in the mid-littoral and lower littoral zones. In contrast, density decreased with higher water level in the eulittoral and mid-littoral zones, while increasing in the lower littoral zone. Benthic invertebrate communities appeared to be adapted to periods of intermittent dewatering, and even sustained dewatering under cooler temperatures. Despite the relatively high diversity of benthic invertebrates, invertebrate predators are generally absent from the lake. My results suggest multiple factors and interactions from predation pressure, salinity and lack of macrophytes are likely responsible for the absence of predatory invertebrates such as damselfly (Xanthocnemis zealandica) and dragonfly (Procordulia grayi) larvae. The lack of significant relationships between water quality variables and water level, and the positive relationship between chlorophyll a and salinity, suggests that current lake opening events do not have a positive effective on either water quality or phytoplankton biomass in Lake Ellesmere/Te Waihora. However, the current lake opening regime seems to be favourable to benthic invertebrate survival in the littoral zone, as the lake is predominantly open over winter when temperatures are lower, reducing the risk of desiccation. Anthropogenic activities which modify hydrodynamic and water quality conditions can potentially have a large negative impact on the structure and diversity of the littoral invertebrate community as well as flow on effects through the lake food web. Based on results from this study, I suggest a minimum lake level at Taumutu of 0.6 m during the months from November – April in order to protect benthic invertebrate communities in the eulittoral zone from extensive loss of habitat, extreme temperature and reduced risk of desiccation. Having a minimum set at ~0.6 m would provide sufficient littoral zone habitat for the lakes extensive bird life and fish populations. In addition, immediate efforts are needed into reducing nutrient loads into the lake, through improved farm management (nutrient and stocking budgets) and riparian fencing. Furthermore, physical and chemical water quality properties would benefit from an increased water level over summer months, by reducing water temperatures, diluting readily available nutrient concentrations and potentially reducing phytoplankton (and potentially toxic cyanobacterial) blooms.

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30

Ng, Patti A. "Trends in the nearshore zooplankton community in the Indiana waters of Lake Michigan, 1990-1996." Virtual Press, 1997. http://liblink.bsu.edu/uhtbin/catkey/1041923.

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Zooplankton samples collected May through August, 1990 to 1996 at site M, 15 m depth in the Indiana waters of Lake Michigan were examined for microcrustaceans, rotifers, and zebra mussel (Dreissena polymorpha) veligers. Abundance numbers per m3 were combined with Coffman's (1995) data to quantify recent trends in the zooplankton.Rotifers dominated the community, with Polyarthra vulgaris, Colurella, Keratella crassa, and K. cochlearis the most prevalent species. Copepods, primarily nauplii and copepodid forms, were the next most abundant taxa. Except for 1994 and 1995, Cladocera abundance was higher than zebra mussel veliger abundance. The cladoceran assemblage was dominated by Bosmina Iongirostris, with very few Daphnia noted. A precipitous decrease in zebra mussels veligers from 1994 to 1996 warrants further investigation to determine the nature and the extent of the population decline.Regression analysis of zebra mussel veliger abundance against abiotic and biotic factors demonstrated veligers varied directly with rotifer abundance and water column temperature and indirectly with cladoceran and yellow perch (Perca flavescens) abundance. A similar regression model of rotifer abundance revealed direct correlation with calanoid, cladoceran, zebra mussel veliger, and yellow perch abundance.
Department of Biology

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31

Altay, Ezgi. "The Integrated Lake Basin Management Planning:a Study On The Beysehir Lake Basin." Thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614526/index.pdf.

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This study aims at elaborating the Integrated Lake Basin Management Planning (ILBM) approach, which is considered as a sustainable management model for lake basins, and evaluating the applicability of this approach in Turkey. ILBM considers both biophysical features and managerial requirements of lake basin systems. It pays attention to inherent dynamics between humans and nature. ILBM has been developed on the basis of Integrated Water Resources Management (IWRM), which seeks the wise use of water
i.e. using water resources with reference to the conservation principles and thresholds. The study elaborates the ILBM planning and focuses on a case study, namely the Beysehir Lake Basin. Beysehir Lake is the third largest lake and biggest freshwater lake of Turkey. Its basin is important with the distinctive natural features it accommodates in two national parks, a special bird site, a special plant site and a natural protected site. However, improper use of the Lake&rsquo
s resources has threatened its natural and ecological qualities, despite the simultaneous conservation efforts. This study, having analyzed the past planning efforts on the Basin with regard to the ILBM principles and criteria, points to the insufficiencies in institutional structure and participation. Meanwhile, the study --depending on the findings of a questionnaire conducted with the stakeholders of the Basin-- also underlines that most of the stakeholders are unaware of the changes that the Lake faced, and they do not know about the existing plans of the Basin. This proves the need for stronger interinstitutional relationships and cooperation so as to take coherent actions. This is important for the management and planning in lake basins, but particularly in the ones which lie on more than one settlement&rsquo
s administrative boundaries like the Beysehir Lake. For the efficient and effective implementation of the ILBM in Turkey&rsquo
s lake basins, the related legislation should be revised accordingly.

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32

Den, Heyer Cornelia E. "Organic matter mineralization in lake sediments : a within and among lake study." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=23996.

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Organic matter mineralization by sediment bacteria was measured by the accumulation of DIC + CH$ sb4$ in the water overlying intact cores taken from littoral and profundal sediments of 9 lakes. The variability in areal carbon mineralization was much greater within lakes than among lakes, with the rate of organic matter mineralization in littoral sediments, on average, 3-fold higher than in the deeper sediments.
Sixty percent of the variation in summer carbon mineralization rates is explained by site depth, a surrogate variable which incorporates the effect of temperature and may also be reflecting organic matter quality and/or supply. Lake-specific variables become useful predictors of carbon mineralization only after the site depth is considered.
A comparison of the mineralization in sediments overlain by epilimnetic water to the whole lake sediment mineralization demonstrates the overwhelming importance of the littoral sediments in organic matter mineralization, with more than half (54-100%) of the mineralization in the sediments occurring in the littoral zone. However, the littoral sediments account for less than 20% of the gross respiration in the epilimnion. (Abstract shortened by UMI.)

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33

Casallas, Guzmán Jorge Enrique. "Limnological investigations in Lake San Pablo, a high mountain lake in Ecuador." [S.l.] : [s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=973515147.

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34

Marioni, Natalie Kay. "Effects of declining lake levels on fish populations in Walker Lake, NV." abstract and full text PDF (free order & download UNR users only), 2007. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1446454.

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35

Eby, Gloria. "TMDL BIOASSESSMENT SAMPLING OF BENTHIC MACROINVERTEBRATES FOR LAKE JESUP AND LAKE SEMINARY." Master's thesis, University of Central Florida, 2008. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3899.

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The objective of this study was to obtain a bioassessment using benthic macroinvertebrates to meet TMDL (Total Maximum Daily Load) criteria for an oligotrophic (Lake Seminary) and an eutrophic (Lake Jesup) freshwater system in Seminole County, Florida. Monthly sampling of the benthic macroinverterbrate communities provided important biological data necessary to construct TMDL protocol and trophic state. Since macroinvertebrates are near the base of the food chain, they not only provide a critical role in the natural flow of energy and cycling of nutrients through the food web, but also provide a good indication of water quality by their presence and abundance. This study suggests that TMDL protocol and reversal trends in eutrophication can be successfully monitored using benthic macroinvertebrate data. Comparative methodology between the LCI and conventional methods indicate that the LCI is a valid, cost-effective and rapid bioassessment method when compared to the conventional method and that the conventional method is an effective tool when more in depth benthic studies are needed as it shows distinct seasonal patterns and accounts for more of the sensitive, intolerant taxa. Furthermore, this type of biological monitoring and trend analysis aids in the implementation of anthropogenic controls that targets waters for TMDLs in suspect systems. When integrated within a watershed management plan, multi-metric indexing functions as an effective overall indicator of the biological condition within a waterbody responding to its watershed.
M.S.
Department of Biology
Sciences
Biology MS

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Akins, Michael R. "Coastal erosion at the Painesville-on-the-Lake area, Lake County, Ohio /." Columbus, Ohio : Ohio State University, 2001. http://hdl.handle.net/1811/5976.

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Frost, Jessica Rene. "Ecology of Lake Griffin, a hypereutrophic cyanobacteria-dominated lake in Central Florida." [Gainesville, Fla.] : University of Florida, 2003. http://purl.fcla.edu/fcla/etd/UFE0000959.

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38

Mikael, Danielsson. "Cyanobacterial populations in Lake Hjorten and Lake Vångaren depending on increased temperature." Thesis, Linköpings universitet, Institutionen för fysik, kemi och biologi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-130201.

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Västervik Municipality has had problems with odorous compounds in its primary water source, Lake Hjorten. Geosmin and cyanobacterial blooms have been detected in the lake. This report aims to experimentally investigate the cyanobacterial populations in the primary and secondary freshwater lakes depending on the climate change factor temperature. An understanding of number of cells is the foundation to understand the potential harmful chemical levels. This provides an opportunity to predict the water quality in the lakes in the future due to climate change. The results show that cyanobacteria did not benefit from an increase in temperature from 10°C to 18°C solely during autumn. However, the diatom Aulacoseira did increase in numbers although it is not known to produce odorous compounds. Consequently a warmer Swedish autumn would not cause worse drinking water quality in absence of other contributing factors according to this study.

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39

Amidon, Zachary J. "Lake Whitefish Spawning Locations and Overwinter Egg Survival in Western Lake Erie." University of Toledo / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1547033485879165.

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40

Sumka, Mark Gregory. "Climate change impacts on a eutrophying lake : Cultus Lake, British Columbia, Canada." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/62645.

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This study characterizes the thermal dynamics of Cultus Lake, British Columbia, Canada, and assesses the impacts of climate change on critical habitat for species-at-risk Sockeye Salmon (Onchorynchus nerka) and Cultus Lake Pygmy Sculpin (Cottus aleuticus). Historical field data spanning 1920s–1930s, 2001–2003, and 2009–2016 were analyzed and a one-dimensional hydrodynamic model (General Lake Model) was calibrated using field data collected in 2016, and validated using field data from 2001–2003 and 2009–2016. The thermal structure of the lake was simulated to 2100 using outputs from the downscaled Canadian Regional Climate Model (CanRCM4) for two climate change scenarios (RCP4.5, moderate emissions scenario; and RCP8.5, extreme emissions scenario). Historically (1923–2016), the total lake heat content increased at a rate of 0.80 MJ m⁻² a⁻¹ and is projected to warm by 2.0 MJ m⁻² a⁻¹ (4.2 MJ m⁻² a⁻¹) for RCP4.5 (RCP8.5). Historically, the Schmidt stability increased by 2.2 J m⁻² a⁻¹ and is projected to increase by 2.6 J m⁻² a⁻¹ (6.5 J m⁻² a⁻¹) for RCP 4.5 (RCP8.5). The duration of stratification has historically been increasing at a rate of 0.18 d a⁻¹ and is projected to increase by 0.18 d a⁻¹ (0.50 d a⁻¹) for RCP4.5 (RCP8.5). The onset of stratification is now two weeks earlier than the 1920s–1930s and currently occurs around 23 March while the breakup date has not changed and occurs around 15 December. However, it is predicted that there will be no change in the date of onset of stratification while breakup will be delayed to 12 January (25 January) for RCP4.5 (RCP8.5). Lake surface temperature and outflow temperature is most important for salmon survival in August through November corresponding with the salmon run. Historical change in mean monthly temperature ranged from 0 °C a⁻¹ in November to a maximum of 0.016 °C a⁻¹ in August. This is predicted to increase to 0.016 °C a⁻¹ (0.046 °C a⁻¹) in November and 0.031 °C a⁻¹ (0.069 °C a⁻¹) in August for RCP4.5 (RCP8.5). Projections indicate fundamental changes to the thermal characteristics of Cultus Lake, which may further degrade water quality, particularly in conjunction with ongoing eutrophication, eliciting fundamental changes in the structural and functional attributes of critical habitat for species-at-risk.
Applied Science, Faculty of
Civil Engineering, Department of
Graduate

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41

Annesley, Irvine R. "Petrochemistry of the Woodburn Lake Group komatiitic suite, Amer Lake, N.W.T., Canada." Thesis, University of Ottawa (Canada), 1990. http://hdl.handle.net/10393/5942.

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Several metavolcanic-metasedimentary belts containing komatiites have been found in the Baker Lake region, N.W.T. In particular, a sequence of flows of komatiitic composition within the Woodburn Lake Group (WLG) show well preserved flow tops, polyhedral jointing, and spinifex textures, confirming their volcanic origin. The Woodburn Lake Group consists of a lower 2.8-3.0(?)Ga predominantly volcanic greenstone sequence and an upper platformal quartzite sequence. The lowermost rocks of the volcanic sequence comprise an essentially bimodal assemblage of komatiites-komatiitic basalts and dacites-rhyolites; intermediate rocks are rare. The uppermost rocks reflect a change in volcanic activity from komatiitic-tholeiitic to calc-alkaline in nature. This change is accompanied by an increase in sedimentation. The supracrustal succession is presently preserved as narrow linear belts within Late Archean (2.6 Ga) granitic to granodiorite plutons. Although there is no recognized pre-greenstone basement, the upper quartzite sequence suggests the presence of older sialic crust nearby. The komatiites and komatiitic basalts (including high-Mg tholeiites) have been altered by greenschist grade regional metamorphism with complete replacement of primary mineralogy, but with excellent preservation of primary textures. The typical mineralogy of the komatiites is tremolite - antigorite - chlorite - Cr-magnetite and of the komatiitic basalts is amphibole - chlorite - magnetite - plagioclase - epidote - quartz. The grade of metamorphism increases toward the margins of the WLG belts to amphibolite grade as a result of contact metamorphism by younger granitoids. Olivine-spinel geothermometry gives a temperature of 625$\sp\circ$C for contact metamorphism of the komatiites. Chemical variation diagrams of the komatiitic suites reflect variable degrees of element remobilization during alteration. Al, Ti, V, Cr, Ni, and Sc were immobile, whereas Na, K, Ca, Rb, Sr, and LREE exhibit variable mobility. Most ratios of incompatible elements (i.e. Zr, and LREE) show moderate to strong depletion of these elements in the komatiites and strong enrichment in the komatiitic basalts. The WLG komatiites are typical of the aluminum-undepleted type that characterizes Late Archean terrains. The WLG komatiitic basalts are geochemically similar to those from Kambalda (Australia), the Abitibi Greenstone Belt, and modern-day volcanic arcs. Fractional crystallization explains the compositional variations within individual volcanic units, but does not explain adequately the differences between komatiites and komatiitic basalts. The Kambalda komatiitic basalts have been interpreted as resulting from crustal contamination and fractional crystallization of komatiitic magmas within an intra-continental setting. Quantitative modelling suggests derivation of the WLG komatiitic basalts by 20-40% crustal contamination of komatiitic magmas. Alternatively, the geochemical similarity to modern-day arc volcanics suggests an arc-related origin for the komatiitic basalts. REE patterns and inter-element ratios indicate that the mantle source region of the WLG komatiites underwent an early melting event, leaving it depleted in Zr and LREE. 30 to 40% partial melting of this source (assumed to be garnet lherzolite in composition) generated the komatiitic liquids. The WLG is compositionally and lithologically similar to the Prince Albert Group and hence probably correlative. Origin of the komatiitic suite in a continental margin arc-type environment is the favoured interpretation but an ensialic rifting model cannot be ruled out.

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42

Del, Giorgio Paul A. "Heterotrophy in lake plankton." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=41362.

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The overall aim of this thesis was to determine the relative importance of heterotrophy and autotrophy in lake plankton. Empirical analyses using extensive surveys of literature data revealed three specific patterns in metabolism and biomass structure in freshwater plankton. First, the ratio of phytoplankton production to plankton respiration (P/R ratio) tends to be low in unproductive lakes ($<$1), and increases along gradients of enrichment. Second, the contribution of planktonic heterotrophs (bacteria and zooplankton) to community respiration is highest in oligotrophic lakes. Third, planktonic heterotrophs dominate community biomass in oligotrophic lakes, whereas phytoplankton increasingly dominate plankton biomass along gradients of enrichment. These three distinct patterns were then tested simultaneously in a set of lakes that span a wide trophic gradient. Results indicated that the plankton of oligotrophic and mesotrophic lakes were characterized by P/R ratios well below unity, and a high contribution of heterotrophs to both community respiration and biomass. These trends are completely the opposite in the most productive lakes. The plankton communities of oligotrophic temperate lakes are predominantly heterotrophic and extensively utilize external inputs of carbon, and therefore only the plankton of eutrophic lakes conformed to the classical phytoplankton-based food web. In most lakes, excess heterotrophic activity could be supported by inputs of organic matter from the drainage basin. Excess plankton respiration, fueled by allochthonous organic carbon, could represent an important source of CO$ sb2$ to lakes.

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43

LeBreton, Gregory Trent Owen. "Lake sturgeon growth chronologies." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0019/NQ47396.pdf.

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44

Herron, Daniel James. "Quantifying lake system dynamics." Thesis, University College London (University of London), 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.252363.

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45

Pease, García Yrigoyen Franklin. "Homenaje a Lewis Lake." Pontificia Universidad Católica del Perú, 2014. http://repositorio.pucp.edu.pe/index/handle/123456789/121926.

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46

Pack, Camille Marian. "Cascade Lake: A Novel." DigitalCommons@USU, 2009. https://digitalcommons.usu.edu/etd/365.

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Twenty-two-year-old Macy Oman narrates the book in retrospect from Cascade, Oregon, where she is visiting her mother. Macy's father moved with her to Portland shortly after the accidental death of her brother, Nick, seven years before the narration begins. Macy's mother stayed behind in Cascade. Thematically the work centers on the emotional repercussions of these losses. Macy's, and her older lover Jason's, involvement with Nick's death is unknown to everyone. Her guilt and her mother's perceived betrayal are disabling. Taking her longing for closeness to nature and to her reclusive friend Celia, Macy discovers folklore that inspires a vision quest to seek her own personal healer, a shaman inside. When Macy accepts and reveals her part in Nick's death, it opens the way to further revelations about the real root of her parents' separation, the divisive nature of assumptions, and the healing power of acceptance. This story attempts to loosely rewrite, subvert or reclaim the early life of the mythological Medea, who betrayed her father and her brother by aiding her lover, Jason the Argonaught, in his quest to obtain the golden fleece that hung on an oak tree, guarded by a dragon. In this story, the golden fleece is represented by an Apollo scarf that Macy's father Richard, an eccentric art-history buff, bought for her mother. Mythologically, the fleece was a powerful artifact, heavily guarded, worthy of war. In this rendition, the value of the scarf, rather than being material, is emotional. In comparison with the golden fleece, the Apollo scarf, an expensive item that is only appreciated for the relationships it represents, is meant to signal the superiority of the emotional over the material. Ultimately Macy does not betray her family; it is Mari who stays behind and Macy who instigates a reconciliation when she reveals the truth about her somewhat inadvertent participation in Nick's death. (352 pages)

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47

Comparetto, William. "The Lake Me Saga." Miami University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=miami1218755085.

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48

Travers, Sarah. "Toxicity of Lake Sediments." Thesis, Ulster University, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.487669.

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The profundal sediment of many lakes is contaminated by heavy metals and persistent organic pollutants (POPs) deposited from the atmosphere, yet there has been little assessment of the biological effects of these toxicants. A Tier I sediment ecological risk assessment of profundal lake sediment that covers the range of contamination in the UK and Ireland was completed. Three laboratory sediment bioassays were used, Daphnia magna 7-day survival and reproduction, Gammarus pulex 14-day survival and growth and Chironomus riparius 10-day survival and growth/reproduction, and the concentrations of seven heavy metals and four groups of POPs (polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls, organochlorine pesticides and polybrominated diphenyl ethers) were determined.

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49

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 aspects of the flood hydrology, hydraulics, and sediment transport. Geologic evidence of maximum flood stages in conjunction with step-backwater modeling provides for peak discharge estimates and understanding of local hydraulic flow conditions for ten separate reaches along the flood route. Peak discharge was approximately 1.0 million m³•sec⁻¹ at the Lake Bonneville outlet near Red Rock Pass. Downstream, the maximum discharge had attenuated to 0.57-0.62 million m³•sec⁻¹ by arrival at Lewiston. Attenuation was primarily the result of flow storage in the wide alluvial valleys of the western Snake River Plain. The local hydraulic conditions (depth and velocity) of the Bonneville Flood varied significantly within and between the study reaches. The rate of energy expenditure was also highly varied; local calculated stream-power values ranged from less than 10 watts•m² to 100,000 watts•m². Greater than 60% of the total energy loss at peak discharge was expended in a total distance that encompassed less than 10% of the flood route. These spatial variations in local hydraulic conditions were profoundly important in controlling the distribution of flood processes and features. The deposition of tractively-transported cobbles and boulders (measured diameters ranged from less than 10 cm to greater than 10 m) occurred in reaches of decreasing flow energy within quantitatively-definable limits of flow energy. Areas of erosion are more difficult to precisely evaluate; however, they were restricted to reaches of greater stream power. It is likely that cavitation was an important erosional agent in many areas of most intense flow conditions.

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Riley, Jacob W. "Predation Pressure on Emergent Lake Trout Fry in Lake Champlain and Techniques for Assessing Lake Trout Reproduction in Deep-Water Habitats." ScholarWorks @ UVM, 2008. http://scholarworks.uvm.edu/graddis/195.

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Lake trout (Salvelinus namaycush) were extirpated from Lake Champlain around 1900 and from the lower four Great Lakes by 1960. Their ecological, commercial and recreational importance has prompted extensive restoration efforts. Despite widespread evidence of natural reproduction by stocked lake trout, there is minimal evidence of survival of wild progeny beyond age-0. Various abiotic and biotic impediments may be preventing self-sustaining lake trout populations from becoming established. Unsuccessful restoration in shallow areas has recently prompted a shift to restoration efforts to offshore, deep reefs in the Great Lakes. The first objective of this study was to develop, test, and implement methods for evaluating lake trout reproduction in deep water, where previously established techniques were ineffective. The second objective addressed the recruitment bottleneck between the emergent fry and juvenile life stages in Lake Champlain, by assessing the severity of predation on lake trout fry by epi-benthic fish. In order to quantify egg density on deep-water habitats (>18 m), we paired a deep-water egg trap with egg bags to establish a relationship between the two types of gear in Lake Champlain. There was no significant difference between densities in the egg bags and deep-water traps, but there was a positive correlation of their ranks (correlation coefficient = 0.514, p<0.0001). The deep-water traps were then used in Lake Michigan to successfully acquire the first egg density data from two sites on the deep Mid Lake Reef Complex. A drop electroshocker was developed to detect fry presence and tested in Lake Champlain in conjunction with emergent fry traps. Both types of gear exhibited similar patterns of fry relative abundance. To assess fry predation in Lake Champlain, two-hour gillnet sets during the period of fry emergence to identify fry predators and to describe how predation patterns changed diurnally and temporally. Seven species of epi-benthic fry predators were identified, including five species that had not been previously identified as fry predators. Yellow perch and rock bass dominated the predator community at two study sites (83% of total catch, N=1179, 77% of all fry predators, N=57). Predator presence and fry consumption was almost entirely nocturnal. There was a linear aggregational response in predator CPUE (fish/hr) to increasing fry relative abundance (p<0.033) but confirmed predators did not exhibit a functional response. There was evidence of a threshold of fry relative abundance at 1 fry/trap/day for the onset and conclusion of fry predation. Temperature was a driving factor in the timing of fry emergence and predator abundance, allowing us to predict the relative impact of predators based on temperature scenarios. Only 5% of the potential predators consumed fry. We used empirical probabilities of consumption to model loss of fry due to predation. This consumption model revealed that predator abundances would have to be extremely high for predation to significantly reduce the population of fry. However, given the relatively high species richness of predators observed at the shallow water study sites, lake trout fry survival is likely to be higher at deep, offshore reefs. These results support the recent shift in restoration efforts to focus on deep reefs.

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Dissertations / Theses on the topic 'Lakme'

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