TOTAL ORIGINAL VOLUME 



± 



TOTAL OfilG. VOL. MINUS LG. ORG. 



FRACTIONED: YES C^J) 



PERCENTAGE RIGHT 



LEFT 



^£. 



SAKFLE NUI«ER ^/J /- hi - )fO ■^'2. /(^C . 



DATE CaLECTED ./ - M~ "^Z 



SORTING: 



DATE STARTED: 



G~/. 



/-^i 



PERCENTAGE VOLU^E 



TIKC STARTED: - ,^ ^ '^ ^^ 



PERSON SORTING .^'^/X^ 



PREDOMINANT TYPES Ct^ PLANKTON: 



SARDINE EGGS 



_SARDINE LARVAE_ 

 WHOLE 



1 1^ 



HEAD SECTIONS :_ 



ANCHOVY EGGS: 



ANCHOVY LARVAE:. 

 WHOLE ~7 ^ 2- 



TAIL SECTIONS: 



IJ^Z 



HEAD SECTIONS _ 



_ SAURY EGGS 



_SAURY LARVAE 



_E■mu^EUS EGGS 



_ETRU*CUS LARVAE_ 

 OTHER FISH EGGS 



O' 



TAIL SECTIONS 



s 



•^ ^ 7 O THER FISH LARVAE_ 



wHaE -y- ^ ~7 



HEAD SECTIONS 



TAIL SECTIONS 



Figure 27. — Plankton sorter's work sheet — sample copy for station 80.52, cruise 6801-H, 

 regular mesh (505 p.). Note that the count of ancho\-y larvae does not match that of 

 the sorter's tabulation sheet in Figure 26. A sorter's count in such high numbers is rarely 

 exact. The measurer's count is exact because every larva is tabulated as it is measured. 

 The sorter's original count on the master sheet (Fig. 29) has been changed by the 

 measurer. 



If sardine eggs are in the sample they are 

 staged according to the method devised by 

 Ahlstrom (1950) as to their state of de- 

 velopment in 11 phases from fertilization 

 to full development before hatching. Then 

 they are aged according to the water tem- 

 perature and time of day at which they 

 were collected. 



All labels are the same as those for plankton 

 sorting. If larvae are bottled separately. 



Figure 28. — Two-dram (7.4 ml) vials and caps used for 

 sorted and identified fish eggs and larvae. Note vinyl 

 insert in caps (see text). 



28 



