Effects of Dam Removal on Fluvial Geomorphology and Fish PDF Download
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Author: Bryan Alan Burroughs
Publisher:
ISBN:
Category : Dam retirement
Languages : en
Pages : 326
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Book Description
Author: Bryan Alan Burroughs
Publisher:
ISBN:
Category : Dam retirement
Languages : en
Pages : 326
Get Book Here
Book Description
Author: Bryan Alan Burroughs
Publisher:
ISBN:
Category : Catostomus
Languages : en
Pages : 344
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Book Description
Author: P.J. Beyer
Publisher: Elsevier
ISBN: 9780444522313
Category : Science
Languages : en
Pages : 272
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Book Description
Dams profoundly impact the geomorphology of rivers by altering the natural patterns of water, sediment and energy flow in rivers. These changes have a largely negative impact on aquatic and riparian ecosystems upstream and downstream of the dam. Natural dams also impact river geomorphology, although with positive and negative repercussions for aquatic and riparian organisms. In 2002, the 33rd Binghamton Geomorphology Symposium convened under the theme "Dams and Morphology," and featured invited papers and contributed posters on topics of natural dams, artificial dams, and dam removal. Fourteen of these papers have been included in this volume.
Author:
Publisher: H. John Heinz III Center for Science Economics and Environme
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 244
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Book Description
Report focuses on the removal of small dams, defined as storing 1-100 acre-feet of water.
Author: Rebecca McCaffery
Publisher: Frontiers Media SA
ISBN: 2832553605
Category : Science
Languages : en
Pages : 405
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Book Description
Rivers are vital ecosystems that support aquatic and terrestrial biodiversity and several ecosystem services, including food, water, culture, and recreation. After centuries of building dams on rivers across the world, dam removal projects are now on the rise due to obsolescence, reservoir sedimentation, insufficient return on investment, or river restoration and conservation priorities. Most dam removal projects have focused on smaller structures (< 10 m in structural height), but larger structures have also started to be removed in increasing numbers as practitioners, river managers, conservationists, and the public have gained more experience with the practice. Recent estimates suggest that only a small fraction of dam removals have been scientifically studied, and include mostly small dams and short time scales. Documenting the long-term ecological outcomes of large dam removal (i.e. >10 m tall) represents a new frontier in dam removal research: projects are more recent and provide an opportunity to understand the complex ecological changes that occur with these transformative restoration projects. Here, we aim to collate a diverse array of papers on long-term dam removal research projects involving larger dams (>10 m) to synthesize the issues, outcomes, tools, and experimental designs used to study large dam removal projects from physical, biological, and ecological perspectives. With this collection, we aim to showcase diverse global projects on ecosystem responses to large dam removal; collect perspectives from different disciplines, fields, and geographies; and synthesize the current state of knowledge in this area. We expect that this Research Topic will be informative to ongoing, long-term ecological restoration and monitoring projects related to dam removal as well as to upcoming large dam removal projects. We welcome contributions from all disciplines addressing the physical, ecological, and ecosystem responses to large-scale dam removal. Contributions could include original research in a specific discipline or area, case studies, or synthesis papers that address one or more of these topics in a transdisciplinary approach. Contributors could address any of the following major topics as related to outcomes of large dam removal, alone or in combination: Freshwater, estuarine, and marine aquatic biota; River and reservoir geomorphology; Terrestrial and riparian vegetation; Wildlife; Sedimentation; and Modelling. We would like contributors to highlight key results in their area of study, cross-disciplinary insights, and lessons learned that could inform ongoing monitoring and research efforts in current projects as well as upcoming large dam removals.
Author: Task Committee on Sediment Dynamics Post-Dam Removal of the Environmental and Water Resources Institute of ASCE.
Publisher:
ISBN: 9780784476680
Category : Dam retirement
Languages : en
Pages :
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Book Description
Sponsored by the Task Committee on Sediment Dynamics Post-Dam Removal of the Environmental and Water Resources Institute of ASCE. Manual of Practice 122 provides guidance, documentation, and field results for the numerical and physical modeling of sediment movement when dams are removed from waterways. Dams alter ecology, block fish passage, increase downstream scour, and displace residents. As awareness grows regarding the adverse environmental impacts of dams on ecosystems and fish populations, interest in dam removal is gaining momentum. However, the impounded sediment collected behind many dams poses another set of environmental and technical problems. This manual addresses issues such as the behavior of stored sediment and overall stream geomorphology after a dam is removed. MOP 122 offers information about dam removal that is valuable to watershed and river managers, environmental engineers, and consultants, as well as to researchers.
Author: Cole Baird
Publisher:
ISBN:
Category : Dam retirement
Languages : en
Pages : 0
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Book Description
Dams impair riverine ecosystems through multiple documented environmental and ecological problems. Due to this recognition dams worldwide have begun to be removed. In recent years, progression of river restoration programs focused on dam removal has surfaced. However, few studies have quantified substrate change and its impact on local fish communities following dam removal. The purpose of this study was to assess changes in 1) substrate geomorphology and 2) fish communities associated with the 2019 removal of two low-head dams, East Jackson St. dam and McCulloch Park dam, on the West Fork, White River in Muncie, Indiana. Side-scan-sonar was used to map substrates in 2012, 2017, and 2021. Using ArcGIS software, specific substrate types were delineated, and substrate areas were quantified. Fish communities were sampled annually from 2018 to 2021 at sites directly above and below the two low-head dams, in accordance with Muncie Sanitary District's Bureau of Water Quality annual sampling practices, using standardized electrofishing methods. Major variation occurred in the dominant substrate type and structure of the fish community structure following dam removal. At both dam sites, bedrock substrate increased over other substrate categories, while unidentified substrate had the greatest decreased rate of change, followed closely by sand substrate. Fish species richness shifted from the highest richness below dams prior to dam removal, to highest richness above dams following dam removal. Dominant fish taxa changed following dam removal. These results support continued monitoring and understanding of long-term effects associated with dam removal on the White River, and the use of dam removals as a river restoration tool elsewhere.
Author: Daizo Tsutsumi
Publisher: John Wiley & Sons
ISBN: 111897140X
Category : Science
Languages : en
Pages : 850
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Book Description
With contributions from key researchers across the globe, and edited by internationally recognized leading academics, Gravel-bed Rivers: Processes and Disasters presents the definitive review of current knowledge of gravel-bed rivers. Continuing an established and successful series of scholarly reports, this book consists of the papers presented at the 8th International Gravel-bed Rivers Workshop. Focusing on all the recent progress that has been made in the field, subjects covered include flow, physical modeling, sediment transport theory, techniques and instrumentation, morphodynamics and ecological topics, with special attention given to aspects of disasters relevant to sediment supply and integrated river management. This up-to-date compendium is essential reading for geomorphologists, river engineers and ecologists, river managers, fluvial sedimentologists and advanced students in these fields.
Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9789251046944
Category : Business & Economics
Languages : en
Pages : 180
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Book Description
The importance of free longitudinal passage of river fauna is stressed.
Author: Chia-Hsiu Chen
Publisher:
ISBN:
Category : Dam retirement
Languages : en
Pages : 50
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Book Description
Freshwater fish change their movement patterns in response to natural or anthropogenic changes in habitat. Dam removal, a major restoration practice to restore river longitudinal connectivity, can affect river habitat with changes in flow regimes and morphological changes due to the sudden release of dam-trapped sediments. In Taiwan, a mid-size dam, Cijiawan #1 dam, was removed in 2011 to provide access to upstream habitat for the endangered target species, Taiwan salmon (Oncorhynchus masou formosanus). A three-phase radio telemetry tracking experiment was conducted to identify the movement patterns before, during and after dam removal. Some tagged fish were also displaced downstream to observe homing behavior. The movements of non-displaced fish showed reduced movement over time and persistence of location which indicates that the influence of disturbance due to capture and tagging was temporary. Displaced fish showed significant long distance movement toward their original home range immediately after release, but became as sedentary as non-displaced fish over time. The displaced fish homing behavior was limited by the barrier effect before dam removal, but daily movements and total absolute stream distance covered both increased after dam removal as fish began accessing upstream habitat. During the dam removal phase, fish below the dam moved very little when the heavy machinery was in the stream and then made long distance movements when upstream habitat was accessible after deconstruction. The rapid response of Taiwan salmon in this study confirmed that the new habitat opened by the dam removal project could be utilized almost immediately, but the sensitivity to habitat degradation indicates that extra attention to short-term habitat impacts should be considered for future stream restoration practices.
