Table 4 shows horizontal profile of oxygen saturation. The
samples were collected at five sites at various distances from
cages at 4.00 pm on June 6th in the last year of the monitoring.
The lowest oxygen saturation was recorded in the cages near
the surface. Good oxygen saturation at all depths was
recorded at other sites. The decrease of oxygen saturation was
limited to less than 100 m from the cages. The oxygen
saturation rose with the depth in the cages.