15 - 

 10 - 



5 - 





 10 - 



5 - 





 10 r 



5 





 10 



5 



A May-July 1939,1940. N.S.W. 145 

 I 



II 



B Aug-0ct1940 

 ^ 1941 



N.S.W. 130. 



FISHERY BULLETIN: VOL. 79, NO. 1 



20r H Aug-Sept 1950 a N.S.W. 462. 



15- 



10- 



5 - 



ol 1 L 



C Nov- Jan 1939/40 '"A N.S.W. 190. 



1940/41,1941/42 



" D Mar-May 1941,1942 



o) 



(0 



^* 

 c 



0) 



u 

 o 



Q. 



lOr 

 5 

 



20 n 

 15 - 

 10 



5 







15 r 

 10 



E Dec 1965 



F Dec-Jan 1963,1964 







G Jan 1954 



20 



30 



40 50 



cm 



Tas.1865. ""Or j peb-Mar 1951 



5- 



20 



I 15 



N.S.W. 107. 



Vic. 321. 



10 

 5 



■J 



K Apr-May 1951 



_L 



_L 



^^^ L Apr-May 1951 

 10 



5 







20r M July-Aug 1951 



N.S.W. 201. ""S 

 10 



70 



20 



30 



40 



50 



cm 



Tas. 282. 



Tas. 176. 



" N.S.W. 152. 



N.S.W. 201. 



60 



70 



Figure 2. — Percentage fork length (centimeters) frequency polygons of skipjack from New South Wales (mostly south of Sydney), 

 Victoria (Lakes Entrance), and Tasmania (Fumeaux Group to Storm Bay). The data are smoothed by a moving average of three. The 

 number of specimens is given after the locality abbreviation in each polygon. Polygons A to D, E to G, and H to M show data for 1939- 

 42, 1954-65, and 1950-51, respectively. The order of the polygons in each of those groups is based on the month or months in which the 

 data were taken. Roman numerals are for identification of modes, and do not necessarily indicate ages. 



90 



