Results 11 to 20 of about 105,818 (342)

Effects of harvesting methods on sustainability of a bay scallop fishery: dredging uproots seagrass and displaces recruits [PDF]

open access: yes, 2005
Fishing is widely recognized to have profound effects on estuarine and marine ecosystems (Hammer and Jansson, 1993; Dayton et al., 1995). Intense commercial and recreational harvest of valuable species can result in population collapses of target and ...
Bishop, Melanie J.   +3 more
core   +3 more sources

Bycatch and discard survival rate in a small-scale bivalve dredge fishery along the Algarve coast (southern Portugal) [PDF]

open access: yes, 2018
Although the bivalve dredge used on the Algarve coast (southern Portugal) is highly selective for the target species, in some periods of the year the bycatch can exceed the catch of the commercial species. The present study aimed to quantify the bycatch
Alverson   +65 more
core   +3 more sources

Synthetic events for flood risk calculation by using a nested Copula structure

open access: yesE3S Web of Conferences, 2016
Risk analysis requires considering the entire frequency domain of flood consequences. Synthetic events were generated for the entire river system of the Scheldt estuary.
Franken Tim   +2 more
doaj   +1 more source

Stabilizing and Destabilizing Breaching Flow Slides

open access: yesJournal of Marine Science and Engineering, 2023
As a result of the dilation of soil matrix, dense submarine sand slopes can temporarily be steeper than the natural angle of repose. These slopes gradually fail by the detachment of individual grains and intermittent collapses of small coherent sand ...
Said Alhaddad   +3 more
doaj   +1 more source

Preliminary Study of Ecological Dredging Technology for the Three Gorges Reservoir [PDF]

open access: yes长江科学院院报
[Objective] Traditional dredging methods for reservoir sedimentation can cause resuspension of sediments, leading to the release of nutrients, and then affect the water environment.
ZHOU Wang-min, LI Xiao-meng, TAN Hao-yue, LUO Ping-an, ZHAO Ke-feng, LU Shu-qiang
doaj   +1 more source

Testing Industrial-Scale Coral Restoration Techniques: Harvesting and Culturing Wild Coral-Spawn Slicks

open access: yesFrontiers in Marine Science, 2019
Accelerating the recovery of marine coastal ecosystems is a global challenge that has been attempted on many systems around the world. Restoration efforts have shown varying levels of success at localized-scales, but developing techniques for large-scale
Christopher Doropoulos   +8 more
doaj   +1 more source

Construction of fairways and reconstruction of channels using rotary-bucket dredgers and calculation of soil-collecting devices [PDF]

open access: yesE3S Web of Conferences, 2021
Rotary bucket dredgers are used in various operations: dredging, mining, development of all types of soil. Despite their high weight, cost and complexity of construction, they are increasingly used in underwater soil development due to their versatility ...
Volodin Yurii   +4 more
doaj   +1 more source

A Technical Note on the Application of Interpolation Method on Modeling of 3D Surface Rock Layer

open access: yesAdvances in Civil Engineering, 2020
The planning stages of dredging require comprehensive and detailed analyses. Identifying the dredging environment is one of the important points. A three-dimensional (3D) geological modeling technology has been shown to be a robust tool for representing ...
Songyu Yin, Yu Zhou
doaj   +1 more source

Spatial Patterns in Water Quality Changes during Dredging in Tropical Environments. [PDF]

open access: yesPLoS ONE, 2015
Dredging poses a potential risk to tropical ecosystems, especially in turbidity-sensitive environments such as coral reefs, filter feeding communities and seagrasses.
Rebecca Fisher   +3 more
doaj   +1 more source

A Review of Environmental Implications of Dredging Activities [PDF]

open access: yes, 2017
Dredging is a global anthropogenic excavation activity of removing sediments from water bodies and depositing it elsewhere. It is a mixed blessing as it has both beneficial and adverse impacts.
C, E. C. (Ejiofor)   +4 more
core   +1 more source

Home - About - Disclaimer - Privacy