200 



100 



SITE 



1 PAt 



ELS 



































































S CUMULATIVE 









mm 



— 





































-y^N 



/4 



10NT 



HLYh 







NOTE: COVERAGE IN EXCESS OF 100% IS THE 

 RESULT OF ORGANISMS GROWING ON EACH OTHER 

 OR OCCUPYING THE SAME GENERAL AREA. 







^ 



























APR. MAY JUN. JUL. AUG. SEP. OCT. NOV. DEC. JAN. FEB. MAR. APR. MAY JUN. 



Q 

 LU 

 lT 

 Ld 



>300 



o 



<_> 



< 



LU 



<200 



I— 



CO 

 LU 



\- 



o 100 



LU 



o 



X o 



SITE 



2 PAN 



.... 

 iLS 









































*.+ 



*>» 



-- 



" •"" 



"~* **" 



» «» « 

















M( 



)NTH 



LY 



























• 



f 



























4 

 / 



f 



' c 



UMUL 



.ATIV 



E 



















J 



// 



/ 



























• 



X 























APR. MAY JUN. JUL. AUG. SEP. OCT. NOV. DEC. JAN. FEB. MAR. APR. MAY JUN. 



200 



100 



SITE 



1 



384C 



1 



IUMUL 



ATIVE 







































— . S 



ITE4 



PANE 



LS 





















































^ 



. . c 



TE 3 



Bor 



'OM 



TEST 



CYL 



INDE 



R 









=•- 



«■•"■■ 



• •»« 



1 1 1 1 1 1 1 

 •—••—SITE 4 BOTTOM TEST CYLINDER 



1 I 1 1 1 1 1 1 



APR. MAY JUN. JUL. AUG. SEP. OCT. NOV. DEC. JAN. FEB. MAR. APR. MAY JUN. 



FIGURE 12 PERCENT OF EXPOSED AREA COVERED BY 



ATTACHMENT FOULERS. 



14 



