11.5.4 Commercial Species 38. An indication of the spatial distribution of the main commercially targeted species relevant to the proposed East Anglia THREE project is given below with landings data for each species presented by weight (tonne) from the study areas in ICES rectangles 33F1, 33F2 and 34F4.
39.
Table 11.6 presents the main species landed by weight in the study areas. Table 11.6 shows that plaice contributes 47.37% and 34.71% of landings (tonnes) in the offshore cable analysis area (33F2) and the windfarm analysis area (34F2), whereas the contribution of plaice in the inshore cable analysis area (33F1) is low at 0.38%. In both the inshore cable analysis area (33F1) and the windfarm analysis area (34F2) sprat contributes 43.24% and 30.40% of the total landings, compared to 13.36% in the offshore cable analysis area (33F2). The highest landings of cod and sole by weight are reported to occur in the inshore cable analysis area (33F1) at 17.55% and 12.58%.
40.
Figure 11.1 and Figure 11.2 shows the UK annual landings weights (tonnes) for the windfarm analysis area and the inshore and offshore cable analysis areas. Figure 11.1 shows that the landings of plaice have generally declined over the 10 year period (2003-2012), with a peak in 2005 at 41.97 tonnes. Landings of sprat were only recorded in 2011 within the windfarm analysis area (34F2) at a value of 342.25 tonnes. Sole landings by weight in the windfarm analysis area (34F2) are relatively consistent throughout the ten year period. Figure 11.2 shows landing records for sprat in the offshore cable corridor are more consistent than in the windfarm analysis area, with records every year between 2003 and 2011, peaking in 2003. Landings of plaice and cod were higher between 2003 and 2006. The landings weight of skates and rays are higher in the offshore cable analysis area than in the windfarm analysis area.
41.
Figure 11.3 shows seasonal variation (average 2008-2012) in landings weights for the windfarm analysis area (34F2). Landings of sprat are only recorded in the windfarm analysis area (34F2) in December, in 2011. Landings of plaice are generally higher in the winter months (November to February) which correspond to the high intensity spawning period defined by Coull et al. 1998 and Ellis et al. 2010. The highest cod landings within the windfarm site also corresponds to the spawning period defined by Coull et al. 1998 and Ellis et al. 2010 (December to April). Seasonal variation in landings weights within the offshore cable corridor are shown in Figure 11.4. Cod landings are highest between January and April (i.e. the spawning period). Landings
Preliminary Environmental Information May 2014
East Anglia THREE Offshore Windfarm
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