correspond to those observed previously for sprat. Landings values recorded by methods such as longlines, otter trawls and gillnets are somewhat lower.
142. In the inshore cable analysis area, fish species are targeted by a more diverse range of gear types. Longlines represent the greater proportion of values, followed by beam trawls, gillnets and both categories of otter trawl. Longlines are principally used to target cod and will account for a proportion of thornback ray and bass landings. In addition to sole, landings values recorded by beam trawls, gillnets and otter trawls will also be formed by varying amounts of these species.
143. Figure 14.44 shows landings values by length category in the vicinity of the proposed East Anglia THREE project.
144. With specific reference to the analysis areas it is interesting to note that in the windfarm analysis area, whilst the over-15m fleet records three quarters of the landings values, the majority of the remainder is formed by vessels in the under-10m category. This proportion is similar to that recorded for longlines (see Figure 14.39) indicating a number of vessels using this gear type are in the under-10m fleet. Landings values in the offshore cable corridor originate almost entirely from vessels in the over-15m category. In contrast, approximately two thirds of landings values in the inshore cable corridor are from the under-10m fleet.
14.4.11.3 Fishing Effort
145. Figure 14.45 shows recorded fishing effort (days at sea) by gear type. The distribution of effort is self-explanatory in most cases, usually corresponding directly to landings values. In the inshore cable analysis area the proportion of total effort occupied by longlines, gillnets and both categories of otter trawls are similar to corresponding landings values. The distribution of effort, however, in the offshore cable and windfarm analysis areas do not directly reflect values. For example, longlining effort in the windfarm analysis area is proportionally greater than corresponding landings values whilst the pattern is reversed for beam trawl effort. This suggests that beam trawlers achieve higher landings values per unit effort (e.g. more fish for less days at sea); a reflection of increased catching capacity and the targeting of high value species such as sole.
146. Figure 14.46 shows fishing effort by vessel category. Broadly, the distribution of effort by vessel category corresponds to landings values: the highest effort levels in the East Anglia THREE project area are recorded within the inshore area of the cable corridor by vessels in the under-10m fleet. Approximately half of the effort recorded in the windfarm analysis area is by the under-10m fleet whereas the majority of effort recorded in the offshore cable analysis area is by the vessels in the over-15m category.
Preliminary Environmental Information May 2014
East Anglia THREE Offshore Windfarm
Chapter 14 Commercial Fisheries Page 57
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