FISHERY BULLETIN: VOL. 74, NO. 1 



Table 2.— ENSIM output for quarter three of the 1972 simulation is presented. The calculated kilocalories expended by each 

 cohort (age-class) in the exploited population is given. The appropriate averages (N/-, weight (kg) and I) are also listed for each 

 cohort. Summary data are given by cohort and for both cohorts summed together. 



Table 3. — The 1972 annual summary data are hsted which 

 give the yield in number and weight for each of the semestral 

 cohorts as well as the kilocalories utilized in the year by the 

 cohorts and the combined sum. 



Yield weight Kilocalories 



Yield numbers (metric ton) utilized 



Total S^ 

 Total S 

 Total S/i 



B 



0.491282E + 7 

 0,534418 E + 7 

 0. 1 02570 E + 8 



0.653748 E + 5 

 0,640257 E + 5 

 0.129427 E + 6 



3.85 E + 12 

 2.28 E + 12 

 7.13 E + 12 



FORK LENGTH (CM ) 



Figure 4. — The amount of food required per day is given in 

 percent body weight of the individual yellowfin tuna of length /. 



Table 4. — The estimates of the daily energy utilization (in kcal/day) for maintenance, swimming at V^yp and Vfggj, growth, and 

 the total daily energy utilized due to all these activities is provided for the average individual of length L and weight W for each 

 cohort in the population during each quarterly time period. The average number of individuals present in each cohort is given in 

 the column headed N. The semestral cohorts are separated (Total A or Total B) and the energy utilization estimates summed and 

 listed for each. The composite estimates (S^ + Sg) are also listed (Total). 



44 



