Table 19. --Chi -square analyses of total catch by kind of 

 bait and sea condition, John R. Manning cruise 

 13 (based on data in table 31) 



higher catch with sardine baits (pooled X^ = 3.96, P<0.05). Of a total catch of 

 73 fish, 45 were taken on sardine. This indicates that a significant portion of 

 the higher herring loss during rough seas occurred during the fishing period. 



In contrast to the above, analyses of the re-examined data from the 

 sardine vs. herring experiment of Smith cruise 18 showed no differences in bait 

 return or catch between the two kinds of bait under different sea intensities 

 (tables 22 and 23). As stated previously, this was probably the result of double 

 hooking the herring, thus overcoming their tendency to fall off the hooks. 



21 



