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2006, Centre for Marine and Coastal Studies (CMACS), Burbo Bank Offshore Wind Farm, Construction Phase Benthic Grab Survey

2006, Centre for Marine and Coastal Studies (CMACS), Burbo Bank Offshore Wind Farm, Construction Phase Benthic Grab Survey

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Benthic Ecology
Sedimentology

Description

This project relates to a specific requirement in the FEPA licence to monitor seabed sediments and associated invertebrate communities in and around the Burbo Bank Offshore Wind Farm. The benthic (seabed) monitoring programme consists of annual surveys by grab sampling and beam trawling. It is being undertaken by Centre for Marine and Coastal Studies Ltd (CMACS) on behalf of SeaScape Ltd. The programme commenced with baseline (pre-construction) surveys in autumn 2005 which built upon surveys undertaken in 2002 in support of the project environmental impact assessment. This study presents the results of monitoring carried out in autumn 2006, during construction of the wind farm, and compares the results with baseline data.  The outcome of this monitoring showed that although overall invertebrate community types were relatively consistent the benthic fauna showed considerable changes between 2005 and 2006, with large reductions in numbers of many of the more abundant species.  These changes were most marked in the central part of the wind farm and to the west where there were also increases in the proportion of mud in sediments.

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Report