GIANTS NECK 



EFFLUENT 



ALGAL 

 CANOPY 



500 



400 



300 



200 



100 







-100 



■200 



500" 



400- 



300 



200 



100 







-100 



-200 



INVERTEBRATE 

 PR/MARY 

 COVER 



AUG. 1981 



INVERTEBRATE 

 PRIMARY 

 COVER 



NOV. 1980 



DENSITY 



AUG. 1981 



T 1 1 1 1 



DENSITY 



AUG. 1981 



CUMULATIVE REPLICATES 



Figure 11. Trumpet diagrams of the upper and lower 95% confidence interval 



(CI), expressed as a percent of the mean (% =i (mean + CI/ mean) x 100), 

 and plotted versus sample size, based on the average of 10 random 

 samples of six replicate panels at Giants Neck and Effluent. The 

 data represents mean percent canopy cover, mean percent primary cover 

 and mean percent density during peak occurrences. 



24 



