FISHERY BULLETIN: VOL. 83, NO. 3 



Table 1.— Seasonal regressions of In (visceral fat volume, nnl) on in (Jotal length, mm) in adults of five species of 

 Sefcas^es from northern and central California. Slopes significantly different from 3 are indicated (? = P<0.1;* = P< 

 0.05; ** = P< 0.01; *** = P< 0.001). 



exceeded that of females. Fat recessions at the low 

 point in spring did not differ significantly (Table 

 3). 



As expected, gonad volume changed significantly 

 during the year in both sexes of S. entomelas (Fig. 2). 

 In males, the volume of testes increased dramatically 

 from a low in spring to a peak in summer, and then 

 declined through fall and winter (Fig. 2). In females, 

 the volume of ovaries increased very slightly be- 

 tween spring and summer, and then increased great- 

 ly in fall and winter (Fig. 2). 



Sebastes paucispinis 



Visceral fat volume changed significantly during 

 the year in males and females of S. paucispinis (Fig. 

 1). In females, fat content did not change significant- 

 ly between spring and summer, but increased from 

 summer to a peak in fall, to decline slightly in winter 

 (Fig. 1). In males, visceral fat accumulated between 

 spring and summer, remained about constant from 

 summer to fall, and declined in winter (Fig. 1). Dur- 

 ing the nominal peak season in fall, fat content of 

 females was significantly greater than that of males, 

 while the regressions for fat content during the 

 nominal low points in spring did not differ signifi- 

 cantly (Table 3). 



Ovarian volume in S. paucispinis reached its low 

 point during summer, increased with vitellogenesis 

 in fall, increased again with embryogenesis and/or 

 further vitellogenesis in winter, and then declined in 

 spring (Fig. 2). The volume of testes increased from 

 spring into summer, continued to increase slightly in 

 fall, and declined in winter (Fig. 2). 



Sebastes goodei 



Visceral fat volume in female S. goodei increased 

 from spring through summer to a peak in fall, and 

 declined in winter (Fig. 1). In male 5. goodei, visceral 

 fat volume increased from low levels in spring to a 

 peak in summer, declined slightly in fall, and 

 decreased again in winter (Fig. 1). The fat content of 

 females during their fall peak exceeded that of males 

 during their summer peak, while there was no signi- 

 ficant difference in fat content during the low 

 seasons of spring for females and winter for males 

 (Table 3). 



Ovarian volume increased slightly between spring 

 and summer in females of S. goodei, and then grew 

 more rapidly through fall and winter (Fig. 2). The 

 volume of testes increased greatly between spring 

 and summer in males of 5. goodei, and then declined 

 through fall and winter (Fig. 2). 



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