抄録
A fishing boat that fished offshore New Zealand and offshore Falkland Islands was subjected to analysis. A quantitative model which describes effect of CPUE(kg/h-line) on fuel unit (kl/kg) is proposed. This model shows that fuel unit depends strongly on CPUE when CPUE is small. In fishing grounds of small CPUE, fuel consumption by main engine occupied a large part of fuelunit, on the other hand, in fishing grounds of large CPUE, fuel consumption by auxiliary engines for refrigerators and fishing gears except fish lamps was dominant. Ratio of fuel consumption by fish lamps ranged from 10-20%. Average total fuel consumption per unit catch was 5.51 x 10-4 kl/kg and average CPUE was 9.76kg/h•line.
