Figure 4 and 5 illustrates the distribution of all fish as observed with the acoustic integration system. This will mainly show the pelagic species, but some demersal fish which lifts off the bottom, especially at night will also be included. The units of acoustic reflection is 0.1 × m²/nm² reflecting surface and represents an indicator of density of pelagic fish. An arbitrary scale has been used to illustrate different levels of concentration. The acoustic data will later be used for biomass estimates.
Over the shelf area of the east coast, only very scattered recordings were made by the acoustic system. Judged by the type of the recordings, it is mainly from small pelagic fish as clupeids and carangids, and would not form basis for any fishing activities.
The acoustic registrations in the joint fishing zone, Figure 4, are mainly from scattered distributions of clupeids and anchovies, with three smaller aggregations of slightly higher densities in the eastern part.
