O'CONNELL: PERCENTAGE OF STARVING NORTHERN ANCHOVY LARVAE 



Figure 16.— a random portion of the northern anchovy larvae from tow 9, in which the larvae show generally irregular body form. 



than the other three subset percentages, but the 

 obvious contagious nature of the distribution of 

 these larvae casts doubt on the value of such tests. 

 It is probably safer here to choose a lower percent- 

 age, such as the 8% for the entire cruise pooled, as 

 representative, and assume that the observed sub- 

 set differences are nothing more than sampling 

 variation. 



Surface Temperature 



The tows with a high incidence of emaciated 

 larvae were not associated with a given level of 

 temperature, but it appears that they were located 

 in an area of variable temperature (Figure 14). 

 The 13° and 15° C tongues of water may have been 

 basically persistent water masses, as Methot and 



485 



