TUCKER: ANCHO\T AND SEA BASS ENERGETICS 



ing, 29 on feeding day 2, and 44 on feeding day 8 

 (feeding day 2-8 mean = 32). In sea bass, mean 

 number of flexes per hour was 48 at first feeding, 

 74 on feeding day 2, and 59 on feeding day 8 (feed- 



ing day 2-8 mean = 63). Anchovy strikes/flexes was 

 79% at first feeding, 40% on feeding day 2, and 62% 

 on feeding day 8 (feeding day 2-8 mean = 52%). 

 Sea bass strikes/flexes was 38% at first feeding, 



Table 4.— Calculation of energy content of bay anchovy and black sea bass eggs and larvae. See Table 1 regarding acronyms. 



'Estimated as the difference between 100% and the other components. 

 ^Assumed to be the same as for sea bass at the same age 

 ^Including ash 

 ^Assumed to be the same as for fed larvae at the same age- 



Bay Ancfiovy 



< 



3 

 Q 

 > 

 O 



z 



z 

 g 



(- 



rj 

 to 

 z 

 o 

 o 



z 

 111 



0.240 



0200 



160 



0.120 



0080 



040- 



c= fed larvae 



^1 oxygen = 06917 + 0.0004744 (hours) 



r'=0540 



.•V « 



)jl oxygen^ 007279 + 0. 002750 (flours) 

 R = 906 



H EP EYS 

 J i L 



• = unfed larvae 



■< 70 hours: 



pi oxygen= 0.06494 + 0.0005220 (flours) 



r'=0 419 



> 70 hours: 



pi oxygen = 1681-0.0008936 (flours)  



r'=0795 



0,0012 



0.0010 



0.0008 



< 



Z) 



9 



0006 > 

 D 



z 



0,0004 



00002 



_1_ 



J_ 



_L. 



J_ 



_L 



-L. 



_1_ 



20 40 60 80 100 120 140 160 180 200 220 240 

 HOURS AFTER FERTILIZATION 

 Figure 3.— Hourly oxygen consumption by bay ancfiovy eggs, unfed lar-vae, and fed larvae. 



285 



