HORN: SWIM-BLADDER STATE AND STRUCTURE 



50 



100 

 STANDARD LENGTH mm 



150 



200 



Figure 9. — Scatter diagram of pectoral fin length as a percentage of standard length in Peprilus triacanthus. RP, regression 

 period, or size interval during which swim bladder regresses; AP, association period, or size interval during which fish associates 

 with floating objects (dashed part of line indicates less frequent association) (see Table 4). 



SO 



10 



PECTORAL • 

 PELVIC A 



• • 



_RP_, 



AP 



— t 



▲ ▲ 









100 



200 

 STANDARD LENGTH mm 



300 



400 



Figure 10. — Scatter diagram of pectoral fin and pelvic fin lengths as a percentage of standard length in Schedophilus 



medusophagus. RP and AP as in Figure 9. 



107 



