9/26/2023 0 Comments Defining and assessing benthic recovery following dredging and dredged material disposalThe evidence shows that pre-flood conditions are usually re established within The process of recovery by benthic invertebrates after natural disturbances such asįloods. The natural succession of aquatic organisms in dredged areas seems congruent with sediment type or the time of the disturbance), but it seems that loticĮcosystems regenerate relatively fast, usually within months after dredging (Yount & Niemi 1990 Wilber & Clark 2007). There are several environmental conditions identified as influencing benthic recovery ![]() This successional process, calledīenthic recovery, is defined as a return of living resources to pre-impact conditions,Ī reference condition (of a neighbouring unaffected area), or both (Wilber & Clark 2007). Initial decreases in benthic diversity and abundance that immediately follow a disturbance,Īquatic organisms begin to colonize the sediments. a relatively discrete event that disrupts community or population structureĪnd changes the availability of resources or the physical environment. Dredging is a disturbance in the river ecosystemĪccording to the definition given by Yount & Niemi (1990), i.e. ![]() These procedures directly and indirectly affect communities of aquatic organisms,īy killing or damaging them, destroying their hiding places and feeding places, andĪltering hydrological conditions. During dredging, macrophytic vegetation and bottom Redging of rivers and canals to enable navigation and agricultural land irrigation
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |