ENVC Hearing 6Oct14 DM expert Steve White [pdf, 135 KB]
...represent a significant volume of fine material released to the water column as a result of the dredging activity. For example, 4-5% of the 5025 cubic metres to be dredged is 201 to 251 cubic metres of fine material that, if uncontrolled, can form sediment plumes in the water column. 14. In addition to the effects on visually orienting and filter feeding biota resulting from sediment plumes and the potential for smothering of sessile biota, the finest sediment grain sizes tend to...