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Fishery Bulletin 90(1). 1992 



cient for diameter, as well as the one 

 for weight, was positive and signifi- 

 cant (Table 7). Thus the potential an- 

 nual fecundity was not fully recruited 

 as stage-3 oocytes in some of the Ore- 

 gon Dover sole taken in November- 

 December, since total fecundity in- 

 creased with the mean diameter of 

 the oocytes used to estimate total 

 fecundity. 



To determine the level of ovarian 

 development (oocyte diameter) at 

 which the full complement of oocytes 

 was recruited into the advanced yolked 

 oocyte class (stage 3), we conducted a 

 series of stepwise multiple regression 

 analyses by successively removing the 

 data by 0.01 mm decrements from the 

 lowermost oocyte diameter class start- 

 ing at 0.71 mm. This analysis indicated 

 that the threshold for a significant ef- 

 fect of oocyte diameter on total fecun- 

 dity was between mean diameters of 

 0.85 and 0.86mm (Table 8). The multi- 

 ple regression coefficient for oocyte 

 diameter was significant and positive 

 when females with oocyte diameter 



