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 13 of 13 for “"Aquatic Biodiversity"”.
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Metagenomic amplicon sequencing as a rapid and high-throughput tool for aquatic biodiversity surveys
Healthy aquatic systems are essential for life on this planet, and provide a variety of goods and services for humans such as drinking water, food production, waste disposal, and climate regulation. Anthropogenic impacts such as over exploitation of aquatic resources, introductions of invasive …
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The edge effect: lateral habitat ecology of an alluvial river flood plain
… and contribute greatly to the productivity and biodiversity of the floodplain ecosystem. We produce a quantitative description of temperature variation across aquatic and terrestrial habitats at Nyack. Thermal patterns across lateral habitats indicate vast differences exist between lateral …
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The edge effect: lateral habitat ecology of an alluvial river flood plain
… and contribute greatly to the productivity and biodiversity of the floodplain ecosystem. We produce a quantitative description of temperature variation across aquatic and terrestrial habitats at Nyack. Thermal patterns across lateral habitats indicate vast differences exist between lateral …
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An Ecotoxicological Assessment of Upper Clinch River Tributaries, Virginia
The Clinch River, Virginia is known for high aquatic biodiversity, particularly Unionidae which are declining at remarkable rates. Studies conducted on the mainstem have only addressed effects of point-source stressors (various toxic spills and effluents from the Clinch River Plant (CRP), Carbo, …
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Examining uncertainty in environmental DNA analyses in freshwater lotic systems
The use of environmental DNA (eDNA) to quantify aquatic biodiversity is a rapidly emerging technique used for academic, government, and private purposes. The ease and relative low costs of taking environmental samples versus other methods of sampling makes eDNA methods an attractive choice, …
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Neogene and Quaternary Events Shaped Diversification and Speciation in Bhutanese Rheophilic Fishes of the Family Nemacheilidae (Cypriniformes) and Sisoridae (Siluriformes)
… that in turn drove the diversification of biodiversity. As a result, the QTP is designated as a global biodiversity hotspot particularly vulnerable to cumulative climatic effects, including shrinking distributions, declining numbers, and local extinctions. Understanding how the biodiversity …
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Illuminating the Drivers of Genomic Diversification in Lamprologine Cichlids of the Lower Congo River
… excellent simplified models to understand how aquatic biodiversity evolves. In particular, the lower Congo River (LCR) in west Central Africa consists of a dynamic hydroscape exhibiting extraordinary aquatic biodiversity, endemicity, and morphological and ecological specialization. This system …
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Detection probabilities and local population demographics of fishes in urbanized and forested streams of the New River basin, Virginia
Aquatic biodiversity continues to decline as humans modify the landscape. A population-level approach is necessary to address the mechanisms of impairment in urban stream habitats. When estimating population-level parameters, incomplete detection of individuals must be accounted for to ensure …
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Toward improved assessment of freshwater salinization as a benthic macroinvertebrate stressor
… Salt pollution can cause adverse effects to aquatic biodiversity, ecosystem function, ecosystem services, and human health. In many regions of the world, and in coal-mining-influenced streams of the temperate forests of Appalachia USA, specific conductance (SC), a surrogate measure for the …
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Population biology of two key fish species and the dynamics and management of the trap fishery in Beung Borapet, Thailand
… used throughout the world for protecting aquatic biodiversity and promoting fish production. The FPA in Beung Borapet contained lower overall densities and biomass of fish than the fished area, but there were inconsistent patterns among fish species. Some dominant species, such as …
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Assessing the sensitivity to climate change of the Berg River Voelvlei abstraction system, Western Cape Province, South Africa
… changing streamflow patterns, and disrupting aquatic biodiversity. The water resources of the southwest region of the Western Cape Province are particularly sensitive to anthropogenic CC, because the entire Western Cape Water Supply System (WCWSS) relies on rainfall-runoff to fill the main six …
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IMPROVING THE ASSESSMENT OF SPREAD AND IMPACTS OF FRESHWATER INVASIVE SPECIES
… Earth’s surface, but they host 6-10% of global biodiversity and are considered endemism hotspots. Moreover, they provide ecological services for more than 6 billion people worldwide, thus their conservation is particularly relevant to preserve both biodiversity and human well-being. Despite …
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Distributional Modeling Of Rare Fishes And Mussels: From Ecological Theory To Biodiversity Conservation
… the use of multiscale landscape data in aquatic species distribution models using a case study of a freshwater mussel. The distribution of Rabbitsfoot (Quadrula cylindrica) in the upper Green River system (Ohio River drainage) was modeled with environmental variables from multiple spatial …