4 - 



1 r~rn — \ — r~r 



Ti~\ — I — rn- 



50.100 

 20 fm. 



50.90 

 I8fm. 



50.80 



I7fm. 



40.90 



I5fm. 



40.80 

 I3.5fm. 



40.70 

 3 f m.' 



40.60 

 llfm: 



3 2.70 

 Bfm. 



30.58 

 7fm. 



I I I I I L_L 



J L_L 



J I I I 



- 4 



-2 



-4 



P P P M M 



I 



2 3 



2 



AGE 



M PL PL 

 3 I 2 



PL 



3-5 



P P 

 2 3 



M M 

 I 2 



M PL PL 

 3 I 2 



PL 



3-5 



AGE 



Figure 6.— Catch curves for larvae and postlarvae of P. duorarum based on the total catch at 10 stations on the Tortugas 

 Shelf, August 1962 to October 1964. P,, Pj, P3= 1st, 2d, and 3d protozoeal stages; Mi, M2, M3=lst, 2d, and 3d mysis 

 stages; Pli, PI 2, PI 3+5=!-, 2-, and 3- to 5-spine postlarval stages. Stages are distributed along abscissa relative to 

 the mean age of each larval stage. 



PINK SHRIMP ON FLORIDA TORTUGAS SHELF 



m 



323-489 O - 69 - 12 



