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10 BENTHIC ECOLOGY


10.1 Introduction 1.


This chapter of the Preliminary Environmental Information Report (PEIR) describes the ecology of the sea bed (benthic ecology) and the foreshore below the mean high water mark (intertidal), within the proposed East Anglia THREE project and the wider southern North Sea. Potential impacts are assessed and mitigation measures provided where appropriate.


2.


Other aspects of marine ecology that are closely linked to benthic ecology are presented elsewhere in this PEIR. Chapter 11 Fish and Shellfish Ecology incorporates shellfish, and although certain commercially important benthic shellfish species are taken into account within this chapter, they are considered in greater detail in Chapter 11.


3.


Other chapters that are linked with benthic ecology, or that cover impacts that may be related to those in this chapter include:


      


4.


Chapter 7 Marine Geology and Coastal Ecology; Chapter 8 Marine and Sediment Quality Chapter;


Chapter 9 Underwater Noise, Vibration and Electromagnetic Fields; Chapter 11 Fish and Shellfish Ecology; Chapter 12 Marine Mammals;


Chapter 13 Offshore Ornithology; and Chapter 14 Commercial Fisheries.


This section of the PEIR was written by Royal HaskoningDHV, and incorporates results and advice from other contributors including Fugro Emu Ltd andMarine Ecological Surveys Limited (MESL). Technical reports from MESL’s Zone Environmental Appraisal (ZEA) and East Anglia ONE cable corridor survey, and Fugro Emu’s East Anglia THREE and East Anglia FOUR Cable corridor survey (herein referred to as the East Anglia THREE / FOUR survey), are included in Appendix 10.2, Appendix 10.3 and Appendix 10.4 respectively in Volume 3. In addition, technical survey reports ofMESL’s East Anglia ONE site survey are available on the Planning


Preliminary Environmental Information May 2014


East Anglia THREE Offshore Windfarm


Chapter 10 Benthic Ecology Page 1


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