Table 21b. Variation of gonosomatic relation* with length offish and period of capture for male and female bluefin tuna 

 taken in the Barbate trap in 1958 (Rodriguez-Roda 1964a). 



Fork Length: 



120-124.S 125-129.5 I30-I34.S 135-139.5 140-144.5 145-149.5 150-154.5 155-159.5 160-164.5 



June MO 

 June 11-20 

 June 21-30 



July 20-20 



June 1-10 

 June 11-20 

 June 21-30 



July 20-30 

 Aug l-IO 



Aug l-IO 



0.95 



2.67 



1.54 



0.77 



Males (Arrivals) 

 190 148 154 



2.58 1.92 



Males (Returns) 



Females (Returns) 



0.77 



1.29 



0.81 



1.6.1 



0.69 



1.39 



1.04 

 0.80 



Fork Length: 



165-169.5 170-174.5 175-179.5 180-184.5 185-189.5 190-194.5 195-199.5 200-204.5 205-209.5 



June l-IO 

 June 11-20 

 June 21-30 



July 20-30 

 Aug 1-10 



June l-IO 

 June 11-20 

 June 21-30 



July 20-30 

 Aug l-IO 



1.10 

 0.66 



2.14 

 1.37 



067 



I 86 



0.60 



1 00 

 3.14 



Fork Length: 210-214.5 215-219.5 220-224.5 225-229.5 230-234.5 235-239.5 240-244.5 245-249.5 250-254.5 



Mean 



3.06 



♦Maturity index obtained by multiplying the ratio of the weight of the gonads tn llic lotal weight of the fish by 1 00 (Rodriguez-Roda 1964a). 



78 



