Table 1.2 Relocated Sites from Proposed Target Locations Reason for relocation
2 The site was moved 900m due east to target a sand wave area, and the interface by means of video.
18 A cable was 200m due north of original location. The site was relocated SW of the original location to avoid the cable.
19 The original site was relocated 500m due south to avoid a cable, as requested by the asset operator.
37 Known static fishing gear around a wreck in proximity to the original location. The target location was relocated away from the wreck and static gear.
38 A cable was in the immediate vicinity of site 38. Static fishing gear targeting a wreck to the south of the site was also present. The site was relocated SW in order to avoid both the cable, and wreck locations.
1.2 Sampling Survey 24.
25.
26. 27.
The benthic ecology survey was conducted over a 15 day period between 29th April and 13th May 2013 inclusive.
All survey work was undertaken on board the survey vessel RV Discovery (details in Appendix A).
Daily Progress Reports for the duration of the survey are presented in Appendix B. The subtidal survey included the following activities;
0.1m2 Hamon grab sampling for the collection of quantitative sea bed sediment samples and determination of macrofaunal content and particle size distribution (PSD) analysis. Single replicates were collected at each station;
Sea bed digital photography and video for collection of qualitative and semi‐ quantitative data on sea bed habitats and associated sessile epibenthos;
2m scientific beam trawling for information on larger mobile epibenthos such as fish, crabs, shrimps and prawns; and
0.1m2 Day grab sampling of sea bed sediment for contaminants analysis. 28.
Equipment utilised during the benthic and epibenthic characterisation surveys is presented within Appendix C.
Benthic Characterisation Report November 2013
East Anglia THREE and FOUR Offshore Cable Corridor
