METHOT and KRAMER GROWTH OF NORTHERN ANCHOVY LARVAE 



NUMBER OF INCREMENTS 



NUMBER OF INCREMENTS 



FIOURE 2. — Relationship between standard length of northern anchovy larvae and the number of daily growth increment.s ( age postyolk 

 absorption I in their otoliths. Two growth curves are shown. One I LAB I is the laboratory growth curve which was expected to fit the data 

 because of the temperature at which the sample was collected. The other iFlTTEDi was fit to the data using a nonlinear least-squares 

 method. 



sample and whether it was above or below the 

 laboratory growth curve (line labelled LAB in 

 Figure 2). Points which fell on lines were split 

 equally between the cells on either side of the line. 

 A chi-square statistic with 2 degrees of freedom 

 was calculated using the expectation of equal 



numbers of larvae in each cell of the table. The 

 results of these tests are in Table 2. 



In general, larvae collected between Los 

 Angeles and the Channel Islands in March 1976 

 (samples A1-A3) grew slower than expected while 

 those collected there in March 1977 (CI, C2) grew 



417 



