50- 

 40- 

 30- 



20 

 10 



40- 

 30 

 20 

 10 



30 

 20 

 10 



_rz£ 



JAN 



N:2 



FEB 

 N-34 



MAR 



N:23 



&s 



>- 



Z> 



o 



40- 

 30- 

 20- 

 10- 



20- 

 10- 



30- 

 20- 

 10- 



JZ^ 



APR 

 NUl 



MAY 

 N = 41 



JUN 

 NZ19 



30- 

 20- 

 10 



AUG 

 N-29 



2 0- 

 10- 



SEP 

 N = 364 



30- 

 20- 

 10- 



OCT 

 NH02 



20- 

 10- 



n£L 



NOV 

 Ni42 



20- 

 10- 



DEC 

 N = 62 



-i — i — r~n — i — i — i — i — i — i — i — i — i — i — i — i — i — i — i — i iii — i — i — i — i — i — i — i — i — ; — i — i — i — 

 10 30 50 70 90 110 130 150 170 190 210 230 250 270 290 310 330 350 



LENGTH CLASS (mm) 



FIGURE 1.— Size distribution of young red snapper from pooled trawl and fish trap collections. 



and 190 mm in March. It appears that age II 

 snapper were 210-230 mm in July although few 

 fish of that age class were caught. 



Tagging 



Numbered, internal-anchor tags were placed 

 in 267 red snapper between 117 and 350 mm 



(mean = 192 mm) on the ship reef in July, Sep- 

 tember, and November 1979. Sportfishermen re- 

 turned 28 tags and our fish trap sampling pro- 

 duced seven additional returns (13% total return 

 rate). All fish were recaptured from the ship 

 reef. The longest "free time" for any fish in our 

 study was 92 d except for one fish which was 

 tagged and recaptured twice over a 1 12-d period. 



646 



