Remove debris from freshwater marshes
Overall effectiveness category No evidence found (no assessment)
Number of studies: 0
Background information and definitions
Large debris (e.g. building materials, tyres) and accumulations of small debris (e.g. plant litter, wrack, plastics) can damage marsh vegetation. Debris can shade and crush vegetation. Movement of debris with water flows or tides can increase the area impacted beyond the footprint of the debris itself. Debris could also provide a refuge for animals that might damage vegetation, or release toxic chemicals (Uhrin & Schellinger 2011). Debris might be deposited directly onto marshes by humans, or carried there by wind and water (e.g. storms and tsunamis; Valiela et al. 1998).
Related actions: Put up signs to discourage littering.
Uhrin A.V. & Schellinger J. (2011) Marine debris impacts to a tidal fringing-marsh in North Carolina. Marine Pollution Bulletin, 62, 2605–2610.
Valiela I., Peckol P., D’Avanzo C., Kremer J., Hersh D., Foreman K., Lajtha L., Seely B., Geyer W.R., Isaji R. & Crawford R. (1998) Ecological effects of major storms on coastal watersheds and coastal waters: Hurricane Bob on Cape Cod. Journal of Coastal Research, 14, 218–238.