ROSENBERG: GROWTH OF JUVENILE ENGLISH SOLE 



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mm 



Figure 2.— An otolith from a 110 mm SL Parophrys vetulus captured in Yaquina Bay. Arrows indicate clear fortnightly rings. 

 There are 21 fortnightly rings on this otolith. The actual age was calculated to be 363 d (see text). 



nightly patterns of a P. vetulus otolith. The first 

 fortnightly ring is formed consistently when the 

 fish is 60 to 75 d old, i.e., the beginning of the 

 metamorphic period (Rosenberg and Laroche 

 1982). 



Basic growth data for the two nursery areas 

 were obtained from size-at-age information. The 

 data for 218 fish captured at Moolach Beach 

 (Fig. 3) show that there are two linear portions of 

 the data, with different slopes, separated by an 



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