Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 309 for “"aquatic ecology"”.
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The Aquatic Ecology of Two Seasonal Marshes in Eastern South Dakota
… were also abundant in both marshes. Most aquatic insects collected in the nekton and autwuchs were in the nympbal or larval stage. Body length and wing pad development of zygopteran and ephemeropteran nymphs were observed in preparation for adult emergence in mid- to late-June 1975. …
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Aquatic Ecology of Swine Waste Lagoons Before and After Artificial Aeration
Made available in DSpace on 2014-12-12T01:27:48Z (GMT). No. of bitstreams: 1 7511867.pdf: 6971536 bytes, checksum: 4d908fe76d47a1b35f09f27cf799b21f (MD5) Previous issue date: 1974
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An investigation of the impact of redd washout, fine sediment infiltration and variations in water chemistry during egg incubation on juvenile production of Atlantic salmon (Salmo salar L.)
… there is no published literature on the aquatic ecology of this river. This key objective of this work was to establish if current redd washout and variations in water chemistry, during the spawning season through to emergence of alevin, is responsible for apparent reductions in juvenile …
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The Removal of Pharmaceuticals from Wastewater by Wet-Air Oxidation
… and personal care products (PPCPs) in aquatic environments has raised concerns about potential adverse effects on aquatic ecology and human health. Certain pharmaceuticals have recently become a major focus of research to better understand the routes and persistence of these compounds …
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Water quality and sedimentation implications of installing a hydroelectric dam on the Río Baker in Chilean Patagonia
… free-flowing river; these differences alter aquatic ecology. With this in mind, this study employed surface-water modeling and hand calculations to forecast water quality in the reservoir that would be formed by the northernmost dam on the Rio Baker. Coupling IntroGLLVHT, a hydrodynamic and …
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From Ecological Epitome to Medical Model: An investigation into Applications for the use of Daphnia in Heart Science.
… a means of improving toxicology testing in aquatic ecology. This thesis offers three contributions to knowledge: 1. Daphnia are an inappropriate model for cardiovascular therapeutic dose-response trials due to extreme environmental sensitivities. 2. Baseline heart rhythm can be correlated …
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The Development and Deployment of Sensors and Algorithms for the Mobile Monitoring of Urban Surface Water Quality
… with a new tool to investigate new questions of aquatic ecology and assist water utilities in managing water quality.
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Freshwater inflows to estuaries : organic carbon and microbial food webs in south-east Australia
… to their respective sub-disciplines within aquatic ecology. Viewed together, they present a novel conceptualisation of hydrology and freshwater inflows in the coastal carbon cycle and microbial food webs in south-east Australian estuaries. The results provide a strong case to protect …
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Biotic and abiotic responses to rural development and legacy agriculture by southern Appalachain streams
… of physical and biotic responses typical to the aquatic ecology literature, and found that streams did not respond much to rural development. Rural development influenced suspended and depositional sediments, and likely altered watershed hydrology though I was unable to find significant evidence …
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Hydrologic-Based Ecological Risk Assessment of Urban, Agriculture, and Coal Mining Impacts Upon Aquatic Habitat, Toxicity, and Biodiversity
… and coal mining land use/cover impacts upon aquatic habitat, toxicity and biodiversity were investigated in Leading Creek, a 388 km2 watershed in southeastern Ohio. Abandoned strip mine land (ASML) and active deep underground mines were examined along with abandoned near-surface underground …
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Using Electrical Resistivity Imaging to Relate Surface Coal Mining Valley Fill Characteristics to Effluent Stream Quality
… landscapes, affecting water quality and aquatic ecology. Valley fills created from excess overburden are prominent features of many mined landscapes. Increased total dissolved solids (TDS), as measured by its surrogate specific conductance (SC), is a significant water quality concern …
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Positive interactions in salt marsh conservation
Contains fulltext : 219667.pdf (Publisher’s version ) (Open Access)
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Patterns of variation in the benthic macroinvertebrate community of the Upper Columbia River, WA
… (BMI) assemblages are important in the field of aquatic ecology for assessing water quality and ecosystem health. However, knowledge of BMI community structure and seasonal patterns in large impounded rivers is relatively limited in scope. In the Upper Columbia River, WA, the BMI community is of …
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Influence of physical habitat management strategies on sportfish and food-web processes
… habitat material type and spatial arrangement on aquatic invertebrates and the growth, condition, and survival of largemouth bass (M. salmoides) and bluegill (L. machrochirus), independent of habitat amount. Patterns of invertebrate community colonization and daily secondary production were …
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The efficacy of a newly developed method of controlled calcium carbonate introductions for anthropogenic acidification mitigation in a naturally acidic riverine environment
… significant threat to surface water quality and aquatic ecology through flushing induced pH troughs and elevated bioavailable Aluminium (Al) levels. The West Dart River is failing to meet good ecological status established under the Water Framework Directive (2000/60/EC) (WFD) for pH (Upper West …
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