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 12 of 12 for “"Regulated Rivers"”.
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Providing a Restoration Framework for Regulated Rivers
… more being proposed, successful restoration of regulated rivers will depend on the creation of broadly applicable frameworks that provide management solutions by generalizing patterns in habitat and ecology. Based on the prevailing scientific literature, restoring natural stream flows in …
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The platypus : historical, ecological, and behavioural advances to improve the conservation of an elusive species
… their distribution overlapping Australia’s most regulated rivers, the impacts of dams remains relatively unstudied. In my thesis, I aimed to address specific knowledge gaps for platypuses, assessing potential past and present distribution, the impact of dams, and their movement behaviours. …
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Assemblage structure and shallow-water habitat use by small-bodied fishes at lower Missouri River sandbars
… play an important role as nursery in large regulated rivers.
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Defining flows to protect instream biota : a critique of the instream flow incremental methodology and the development of a hierarchical habitat-based approach, using the pennant-tailed catlet, Chiloglanis anoterus in the Marite River, South Africa
… determining Instream Flow Requirements (IFR) for regulated rivers, specifically in the sub-tropical eastern region of South Afiica using a flow-sensitive fish species, the pennant-tailed catlett 07iloglanis anoterus. In response to the diminishing and altered flow regimes of rivers, and the …
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Evaluating Ecological Influences of Altered Flow Regimes Using Two- and Three-Dimensional Hydrodynamic Models
… with efforts to maintain healthy ecosystems in regulated rivers having irregular channel topography. Fluctuating, complex flow patterns near river obstructions such as boulders and large woody debris provide unique habitat for many aquatic organisms. Numerical modeling of the flow structures …
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Better understanding human impacts on river thermal regimes under climate change
… a physically-based model framework to simulate regulated river flow and temperature, explicitly considering the impacts of reservoir thermal stratification. This model framework laid the basis of this dissertation and was applied in all subsequent analyses. In Chapter 2, I applied this model …
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Sauger Population Ecology in Three Missouri River Mainstem Reservoirs
… and general habitat alterations associated with regulated rivers. Several sauger populations within the Missouri River basin are also experiencing similar declines, particularly in the headwaters of Montana, and the lower basin states of Nebraska and Missouri. However, sauger populations in many …
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IMPACTS OF CLIMATE AND REGULATION ON ICE-JAM FLOODING OF NORTHERN RIVERS AND THEIR INLAND DELTAS
… because they can result in high water depths in rivers that can exceed levees leading to devastating floods. In the past 35 years, there have been significant advances in river ice hydrology. However, understanding on several aspects of IJFs still remains limited. Little work has been carried out …
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Status and Distribution of Fishes in Tributaries of the Garrison Reach of the Missouri River, North Dakota
… because conservation and management of regulated rivers requires a riverscape approach (e.g. linking reservoirs, mainstem rivers, and tributaries) to develop adaptive management plans. The Missouri River in North Dakota was impounded in 1956, creating a highly regulated intra-reservoir …
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Patterns in Fish Community Structure in a Regulated River
… that the present assemblage has adapted to a regulated flow regime, however a direct relationship between peaking and community composition cannot be established. Additionally, fishes were sampled at three longitudinal sites during summer months of 2007 to 2009. I examined fish community …
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Factors affecting the recruitment of riparian vegetation on the Ord and Blackwood Rivers in Western Australia
… to the hydrological regime on the respective rivers. Position in the riparian landscape where seedlings manage to establish is strongly related to environmental conditions that provide adequate moisture but protect seedlings from flooding. Historical flow records can be used to develop an …
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Sediment transport modelling at the catchment scale in Alpine streams
… In the last sixty years for example, dam-regulated rivers in Europe have witnessed a loss of reservoir capacity due to sedimentation. An average estimation across European reservoirs indicates that by 2022 their water capacity decreased by 18\% due to sediment deposition. In this context, …