Anglia THREE export cables. Again these impacts were assessed as being of small scale at worst and localised.
3.1.5 Fish and Shellfish Ecology 24.
Information from existing research on the fish and shellfish which live within the southern North Sea has been combined with surveys that have been undertaken at the East Anglia THREE site and the offshore cable corridor to build up a comprehensive knowledge of the area.
25.
The data show that over 100 species of fish and shellfish may be present within the area. Species were taken forward for assessment due to their ecosystem value and the value to commercial fishermen. Other species such as salmon and lamprey were also taken forward for assessment due to their conservation value.
26.
The assessment concluded that the effects on fish and shellfish wouldmostly be small scale and localised.
3.1.6 Marine Mammal Ecology 27.
To estimate how many marine mammals use the East Anglia THREE site, high resolution photographs were taken using low flying aeroplanes. These surveys recorded very low numbers of marine mammals with only three species using the site in sufficient numbers to enable them to be assessed. The species assessed were harbour porpoise, grey seal and harbour seal.
28.
The impact assessment concluded that only minor impacts to marine mammals would occur as a result of the proposed East Anglia THREE project being built in isolation. However, taking account of other project in the region, there exists the potential for combined impacts to occur as a result of underwater noise. It was noted that the contribution of the proposed East Anglia THREE project to this combined impact is very small in the case of harbour porpoise, grey seal and harbour seal due to the very low densities of these species across the East Anglia THREE site.
3.1.7 Offshore Ornithology 29.
The numbers of birds using or passing through the East Anglia THREE site were also calculated using from the results of aerial photography surveys. All birds observed within these surveys have been assessed with regards to their nature conservation value. Species of particular interest include species of gull as well as gannets, guillemots and razorbills.
30.
The proposed East Anglia THREE project was predicted to have only minor impacts on birds when considered on its own. However, the assessment of East Anglia THREE with other potential projects, found that together they may have greater
Preliminary Environmental Information May 2014
East Anglia THREE Offshore Windfarm
Non-Technical Summary Page 6
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