Abstract Marine dredging is an excavation activity carried out worldwide. Dredging a critical component of most major infrastructure developments the lakes. This research work was conducted, using two epoch data (year 2016 and year 2022), to investigate changes in morphometry Lake Manzala. Data acquisition done depth sounding with echo sounder GPS, further processing ArcGIS 10.7.1 software. Res...

Abstract Multi-decadal prediction of estuarine sedimentation with high-fidelity hydromorphodynamic models presents high computation costs, especially when accounting for stochasticity and uncertainty. A StochAstic model Multi-decadaL Estuarine Sedimentation (SeAMLESS) is formulated here to support a specific decision-need related resilience planning coastal management: estimating future dredgin...

Sedimentation at the confluence of Houston and Bayport Ship Channels (Bayport Flare) in Upper Galveston Bay, along Gulf Coast Texas, USA, is a costly issue requiring frequent dredging. Hydrodynamic sediment dynamic processes particularly around Flare, are being explored using measurements from vessel mounted fixed Acoustic Doppler Current Profilers (ADCP), Optical Backscatter Sensors (OBS), Til...

Ponggol estuary, located on the northeastern coast of Singapore, is heavily impacted by reclamation, dredging, construction and shipping. Tin, lead, nickel, cadmium, copper and zinc in the particulate and dissolved fraction and in sediments were monitored biweekly in the estuary from July 1999 to June 2000. The concentrations of tin, lead, nickel, cadmium, copper and zinc were observed to range...

The visible and near infrared bands of Landsat have limitations for detecting ships in turbid water. The potential of TM middle infrared bands for ship detection has so far not been investigated. This study analyzed the performance of the six Landsat TM visible and infrared bands for detecting dredging ships in the turbid waters of the Poyang Lake, China. A colour composite of principal compone...

1. The effects of towed bottom-fishing gear on benthic communities is the subject of heated debate, but the generality of trawl effects with respect to gear and habitat types is poorly understood. To address this deficiency we undertook a meta-analysis of 39 published fishing impact studies. 2. Our analysis shows that inter-tidal dredging and scallop dredging have the greatest initial effects o...

The native European flat oyster (Ostrea edulis) has declined throughout its range, due to over-exploitation, a situation mirrored in oyster stocks globally. There are three remaining oyster fisheries in England (Fal, Solent, and Thames Estuary). The Fal oyster fishery though employs traditional methods, using hand-hauled dredges from rowing punts or under sail and is home to the last commercial...