Rapid macrobenthic recovery after dredging activities in an offshore wind farm in the Belgian part of the North Sea
作者： Delphine A. Coates , Gert van Hoey , Liesbet Colson , Magda Vincx , Jan Vanaverbeke
DOI: 10.1007/S10750-014-2103-2
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摘要: The development of offshore wind farms (OWFs) in the North Sea has increased considerably to create alternatives for fossil fuel energy. Activities related construction OWFs, particular gravity-based foundations (GBFs), are mainly associated dredging, causing direct effects macrofauna seabed. sediment characteristics and were studied before after (2005–2010) six GBFs an OWF Belgian part Sea. We distinguished natural from anthropogenic-related fluctuations macrofaunal communities by analysing a long-term dataset (1980–2012). analysed sandbanks characterised sandy substrates community with low species abundance (180–812 ind m−2) diversity (6–15 per 0.1 m2). Strong temporal variations observed possibly variable weather conditions area. Significant differences composition due installation year followed rapid recovery later confirmed benthic ecosystem quality index BEQI. Even though creates physical disturbance seabed, macrobenthic these sediments have illustrated fast potential.
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