Dear Colleagues,

The sediment distribution in transitional land–ocean zones, and the subsequent impact it has on many biogeochemical processes, is determined by its erosion and transport in coastal areas. In these areas, management practices or anthropogenic activities, such as dredging, recreational activities, boat anchoring, and/or fishing, among others, negatively impact coastal ecosystems. Research on management issues that involve protecting or restoring coastal ecosystems, and/or their adaptation to future climate change scenarios, might generate tools with which to maintain the ecological value of these habitats. Sediment transport is expected to vary as a result of the physical forcing associated with waves, currents, wind, gravity currents, the strength of the stratification of the water column, or turbulence. Deltas, breakwaters, and harbors, as well as seagrasses, etc., modify the fate of the sediment being transported. For instance, river plumes flowing to the sea produce high sediment concentrations along coastal areas. Coastal seagrasses and the vegetation in salt marshes are known to enhance particle sedimentation by reducing both the flow velocity and the turbulent kinetic energy, whereas anthropogenic activities are known to threaten such ecosystems by producing gaps (i.e., zones of bare soil) interspersed within the vegetation, resulting in a fragmented meadow. The capture of sediment by a fragmented meadow is expected to be reduced compared with that by a continuous meadow. Additionally, predictive modeling of the transport processes of sediment along coastlines will provide us with information on its behavior under different scenarios. In this Special Issue, we invite scientists working on the different aspects of sediment transport in coastal or watershed areas to share their most recent results. Papers submitted could deal with sediment transport, modeling, gravity current dynamics, the interaction between aquatic vegetation and sediment, sediment dynamics in fragmented meadows, or sediment resuspension.

Dr. Teresa Serra
Guest Editor

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• sediment transport processes
• sediment resuspension
• estuaries
• coastal zones
• coastal wetlands
• river plume
• nearshore processes
• numerical modeling
• seagrasses
• seagrass fragmentation