between inshore and offshore areas and the type and manner in which fisheries statistics are collected from vessels in the over-15m and under-15m fleets (for detail see section 14.3.1.3). Typically vessels under 15m in length (and especially those in the under 10m category) target grounds within the 12nm limit as they have a limited operational range and a reduced capability to endure adverse weather when at sea. In comparison, larger vessels have a wider operational range and can endure more adverse sea conditions enabling them to undertake longer trips further offshore. There is overlap between these categories which relate to factors such as weather, fuel costs and the location of productive grounds. The analysis areas are based on the following ICES rectangles:
6.
Windfarm (East Anglia THREE site) Analysis Area - ICES rectangle 34F2; Offshore Cable Analysis Area - ICES rectangle 33F2; and Inshore Cable Analysis Area - ICES rectangle 33F1.
Small percentages of the proposed East Anglia THREE project are located outside
these analysis areas. For example, the north-eastern corner of the East Anglia THREE site is located within ICES rectangle 34F3 and a small section of the offshore cable corridor, close to the landfall location, is located in ICES rectangle 32F1. Due to the small proportion of these rectangles occupied by the proposed East Anglia THREE project, annual and seasonal variation have not been described at the scale of individual ICES rectangles. These areas are however included in the assessment of surveillance sightings and Vessel Monitoring System (VMS) datasets which allow the levels of activity occurring in discrete areas of ICES rectangles to be assessed with a higher degree of accuracy.
14.3 Data and Information Sources There is currently no single data source or recognised model for establishing
7.
commercial fisheries baselines. It is therefore necessary to use an approach that incorporates a number of relevant data and information sources, each subject to varying sensitivities and limitations, as described below. The relevant fisheries, methods and associated effort are described in progressive detail by building upon the sources and analysis outlined below.
8. The key data sources used to characterise the baseline and assess the potential
impacts of the proposed East Anglia THREE project on commercial fisheries receptors are summarised in Table 14.1.
Preliminary Environmental Information May 2014
East Anglia THREE Offshore Windfarm
Chapter 14 Commercial Fisheries Page 2
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