PIGMENTS 
mg/m3 
PT. CONCEPTION 
Figure 1. An-. 
chovy spawning 
limits defined 
by ocean color 
measurements. 
(Fiedler 1983) 
Figure 2. Relation- 
ship between bottom 
oxygen content and 
shrimp catch. (Leming 
and Stuntz 1984) 
LESS THAN 2 PPM OXYGEN 
