Table 5. Analyses of variance of series of Japanese 



commercial fishing longline yellowfin catches 

 (about 2, 000 hooks or 350 baskets per set). 

 The values used are the logarithms of the 

 catches in table 10 (appendix). 



Set number 



Source of variation 



Degrees of 

 freedom 



Sum of 

 squares 



Mean 

 squares 



u/ 



Total 

 Samples 

 Stations 

 Discrepance 



Total 

 Samples 

 Stations 

 Discrepance 



43 



1 



21 



21 



77 



1 



38 



38 



4. 6779 

 0, 0539 

 3. 6408 

 0.9832 



6. 1943 

 0.0005 

 4.5656 

 1,6282 



0.0539 



0.734 



0.0468 



0.0005 

 0. 1201 

 0,0429 



0. 216 



0.207 



_1_/ This series is based on all the fishing in a block bounded by 



lO_20 N. latitude and 160°-I6l° E. longitude during May 1951, 

 A pair was formed from two consecutive sets as they appeared 

 in a tabulation by days. The maximum time interval between the 

 members of any pair is therefore 1 day. 



2^1 This series is based on the fishing of two catcher vessels. A 

 pair consists of two consecutive days' fishing by one vessel. 

 If there was a break in time of more than 1 day or in distance 

 of more than 1 degree, the pair was rejected. 



18 



