Table 11.6 Impact Significance Matrix Sensitivity


High High


Medium Low


Major Major


Moderate Negligible Minor Medium Major


Moderate Minor


Negligible


Table 11.7 Impact Significance Definitions Impact Significance


Definition Major Moderate Minor


Negligible No Impact


Very large or large change in receptor condition, both adverse or beneficial, which are likely to be important considerations at a regional or district level


Intermediate change in receptor condition, which are likely to be important considerations at a local level.


Small change in receptor condition, which may be raised as local issues but are unlikely to be important in the decision making process.


No discernible change in receptor condition. No change in receptor condition, therefore no impact


11.4.4 Cumulative Impact Assessment 30. With regards to cumulative impacts, already installed infrastructure, practiced licenced activities and implemented measures have been assumed to constitute part of the existing environment to which receptors have adapted. There is also a paucity of information on a number of planned offshore developments which hinder a comprehensive assessment. The developments, activities and measures taken forward for cumulative assessment have been selected to be taken forward on the basis on the availability of information, probability and spatial overlap where relevant.


11.4.5 Trans-boundary Impact Assessment 31.


The distribution of fish and shellfish species is independent of national geographical boundaries. The East Anglia THREE specific impact assessment has therefore been undertaken, taking account of the distribution of fish stocks and populations


Magnitude Low


Moderate Minor Minor


Negligible Negligible Minor


Negligible Negligible Negligible


No change


No impact No impact No impact No impact


Preliminary Environmental Information May 2014


East Anglia THREE Offshore Windfarm


Chapter 11 Fish and Shellfish Page 24


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64  |  Page 65  |  Page 66  |  Page 67  |  Page 68  |  Page 69  |  Page 70  |  Page 71  |  Page 72  |  Page 73  |  Page 74  |  Page 75  |  Page 76  |  Page 77  |  Page 78  |  Page 79  |  Page 80  |  Page 81  |  Page 82  |  Page 83  |  Page 84  |  Page 85  |  Page 86  |  Page 87  |  Page 88  |  Page 89  |  Page 90  |  Page 91  |  Page 92  |  Page 93  |  Page 94  |  Page 95  |  Page 96  |  Page 97  |  Page 98  |  Page 99  |  Page 100  |  Page 101  |  Page 102  |  Page 103  |  Page 104  |  Page 105  |  Page 106  |  Page 107  |  Page 108  |  Page 109  |  Page 110  |  Page 111