2003/2004 MIRO funded research project assessing the
impacts of dredging and associated overboard screening on marine benthic
communities. This project included a detailed study of the settlement
profiles and 'footprint' of discharged materials using conventional water
sampling, ADCP and seabed mounted water samplers. Seabed topography,
bathymetry,surface sediment structure and particle size analysis was also
studied in great detail to be examined in relation to biological
community structure. In the same area the benthic and epibenthic
communities were quantitatively surveyed using Hamon grabs and beam
trawls in addition to in-situ underwater photographs. Advanced GIS
mapping and statistical community analysis was combined with the
geophysical data in order to interpret our findings. Results have allowed
us to develop and validate predictive models describing the impacts
associated with marine aggregate dredging. A Non-Technical summary of the
project can be obtained by clicking HERE. A full copy of the report can
be sent out upon request via phone or email at a charge of £10.00.
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