Table of Contents 10


10.1 10.2 10.3


10.3.1 10.3.2 10.3.3


10.4


10.4.1 10.4.2 10.4.3 10.4.4 10.4.5


10.5


10.5.1 10.5.2 10.5.3 10.5.4 10.5.5 10.5.6


10.6


10.6.1 10.6.2


Benthic Ecology ............................................................................................1 Introduction .................................................................................................1 Consultation.................................................................................................2


Scope ...........................................................................................................7 Study Area.............................................................................................................7 Worst Case............................................................................................................8 Embedded Mitigation specific to Benthic Ecology.............................................17


Assessment Methodology........................................................................... 18 Guidance.............................................................................................................18 Data sources .......................................................................................................21 Impact Assessment Methodology ......................................................................26 Cumulative Impact Assessment..........................................................................29 Transboundary Impact Assessment ...................................................................30


Existing Environment .................................................................................. 30 Sea bed Sediments .............................................................................................30 Infaunal Communities ........................................................................................31 Epifaunal Communities.......................................................................................45 Landfall and intertidal Habitat............................................................................51 Protected Habitats and Species..........................................................................52 Context and Summary ........................................................................................56


Potential Impacts........................................................................................ 57 Potential Impacts during Construction...............................................................57 Potential Impacts during Operation: ..................................................................71


Preliminary Environmental Information May 2014


East Anglia THREE Offshore Windfarm Chapter 10 Benthic Ecology


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