![]() The World Health Organization (WHO, 2001) on a research carried out reviewed that, most of the dredging activities carried out in developing countries are close to residential premises which have resulted to collapse of structure cracking of building walls and also claimed lives and properties. According to him, dredging can also produce materials for land reclamation or other purposes (usually construction of roads and bridges) and has created disturbances in water bodies, health and environment and aquatic ecosystem often with the adverse to impact.Īccording to Davidson (2008) all methods of dredging release suspended sediments into water column during the excavation and during the flow of sediment from dredgers to barges increased suspended sediments can affect filter feeding organisms such as shell fish through clogging their breathing organs, similarly young fishes can be damaged if suspended sediment become trapped in their gills and increased fatality of young fish have been observed in heavily turbid water while adult fish are likely to move away from or avoid areas of high suspended solid such as dredging site. ![]() The process of dredging creates spoils (excess materials) which are carried away from the dredging area. Where these activities are being carryout, it is used as a means to replenish sand on some places where sand has been lost due to coastal erosion. Most dredging activities according to Robin (2006) are done to maintain or make deeper navigational channels anchorages or berthing areas of the safe passage of boats and ships unknowingly that its activities have significant implications on aquatic lives and the environment.
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