3.11

Volume 3, Chapter 11

Marine Mammals Figures

1 © Wood Group UK Limited

Rampion 2 PEIR. Volume 3, Chapter 11: Marine Mammals Figures

Contents

Figure 11.1 Marine mammals Study Area Figure 11.2 Marine Mammal Sightings (April 2019 – November 2020) Figure 11.3 Behavioural Disturbance Contours for the Worst-Case Scenario Pin-

Pile at the South Location Figure 11.4 Contour plot showing the effect of increasing the number of days of

disturbance and increasing the number of individuals disturbed per day for a population if 195 bottlenose dolphins (residual days of disturbance set to 1) (Smith et al, 2019)

Figure 11.5 Cumulative effects assessment for marine mammals

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Figure 11.1 Marine mammals Study AreaPreliminary Environmental Information Report

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PEIR Assessment Boundary

Marine mammals survey area

North Sea (MU)

Offshore Channel, Celtic Sea & SW England MUCeltic and Greater North Seas MU

Southeast England MU

Southern England MU

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Fig ure 11.2 Marine Mam m al Sig hting s(April 2019 – Novem ber 2020)Prelim inary Environm ental Inform ation R eport

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PEIR Assessm ent Bound ary

Marine Mam m al Survey Area

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Figure 11.3 Behavioural Disturbance Contoursfor the Worst-Case Scenario Pin-Pile at theSouth LocationPreliminary Environmental Information ReportMarine Mammal Noise Technical Report

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PEIR Assessment Boundary

! Noise modelling locations

South Pin-pile WCS120 dB re 1 µPa²s SELss125 dB re 1 µPa²s SELss130 dB re 1 µPa²s SELss135 dB re 1 µPa²s SELss140 dB re 1 µPa²s SELss145 dB re 1 µPa²s SELss150 dB re 1 µPa²s SELss155 dB re 1 µPa²s SELss160 dB re 1 µPa²s SELss165 dB re 1 µPa²s SELss170 dB re 1 µPa²s SELss175 dB re 1 µPa²s SELss180 dB re 1 µPa²s SELss

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Figure 11.5 Cumulative effects assessment formarine mammalsPreliminary Environmental Information Report

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Esri, HERE, Garmin, (c) OpenStreetMap contributors, and the GIS usercommunity© Crown Copyright (2020); © Oil and Gas Authority / Containsinformation provided by the Oil and Gas Authority and/or other thirdparties; © Cefas (2020); EMODnet 2020

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PEIR Assessment BoundaryOffshore Channel, Celtic Sea & SW England Management Unit (MU)North Sea MUSoutheast England MUSouthern England MUCeltic and Greater North Seas MU

D Oill and gas subsurface structureE Oil and gas surface structure

! Oil and gas wellAggregate license areaOffshore windfarm export cable agreementsOffshore windfarm extensionsOffshore windfarm site agreementsEurope offshore windfarmsCableProposed Aquind cablePlanned IFA-2 cable