Topic
Dredging
About: Dredging is a research topic. Over the lifetime, 3300 publications have been published within this topic receiving 28325 citations.
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01 Dec 1998
TL;DR: In this paper, the types of concerns that lead to requests for environmental windows for Federal navigation dredging projects in both marine and freshwater systems, as well as the frequencies of occurrence of these concerns among U.S. Army Corps of Engineer (USACE) Districts are summarized.
Abstract: : This technical note summarizes the types of concerns that lead to requests for environmental windows for Federal navigation dredging projects in both marine and freshwater systems, as well as the frequencies of occurrence of these concerns among U.S. Army Corps of Engineer (USACE) Districts. The information presented is derived from responses received from a survey sent to all USACE District offices that perform operations and maintenance (O&M) dredging in either marine or freshwater environments. This note serves to update earlier surveys by LaSalle et al. (1991) for dredging operations conducted in coastal and Great Lakes areas and by Sanders and Killgore (1989) for seasonal restrictions associated with dredging operations in freshwater systems.
39 citations
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01 Jan 2003
TL;DR: In this article, the authors show that coastal regions are likely to experience increased erosion, inundation, and storm-surge flooding in future decades, and demographic projections show these trends will continue, placing more people and development at risk.
Abstract: Coastal erosion and land loss resulting from complex natural processes (e.g. storms, sea-level rise, sediment starvation) and man-made alterations (e.g. dams, dredging, structures), often with unintended consequences, are pervasive for all coastal regions of the United States, as well as for much of the world. Development in the coastal zone continues to increase and demographic projections show these trends will continue, placing more people and development at risk. With the prospects of future climate change causing increased storminess and accelerating global sea-level rise, coastal regions are likely to experience increased erosion, inundation, and storm-surge flooding in future decades.
39 citations
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TL;DR: No impacts attributable to hydraulic dredging were found upon consideration of the entire sampled macrobenthic community, the Polychaeta, the Crustacea, detritivores, and suspensivores.
Abstract: Hydraulic dredging that targets the bivalve Chamelea gallina in the northern and central Adriatic Sea (Italy) has been taking place for over 30 years. Seventy-three commercial dredgers harvest the resource within the sandy coastal area of the Ancona Maritime District (central Adriatic Sea). Despite this chronic disturbance, studies aimed at investigating the impacts of the fishery on the macrobenthic community of the area have never been carried out. To remedy this, sampling was accomplished within an area of the District from which hydraulic dredging was banned, within the framework of a balanced beyond-BACI (before/after, control/impact) experimental design. Data regarding seven groups of species were analysed separately by means of permutational multivariate analysis of variance. No impacts attributable to hydraulic dredging were found upon consideration of the entire sampled macrobenthic community, the Polychaeta, the Crustacea, detritivores, and suspensivores. In contrast, a sustained press impact of...
38 citations
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University of Western Australia1, CSIRO Marine and Atmospheric Research2, University of Sydney3, Australian Institute of Marine Science4, Engineer Research and Development Center5, University of Wollongong6, Murdoch University7, University of Melbourne8, Edith Cowan University9, Environmental Protection Authority10, Queensland University of Technology11, James Cook University12
TL;DR: In this paper, the authors identify critical ecological processes for temperate and tropical marine benthic organisms; and examine if environmental windows could be used to mitigate dredging impacts using Western Australia (WA) as a case study.
38 citations
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TL;DR: The occurrence of sediment plumes explained ~60% of spatial variability in measured impacts, suggesting that remotely-sensed plumes, when properly calibrated against in situ monitoring data, can reliably estimate the magnitude and extent of dredging impacts.
38 citations