Figure 25 demonstrates the monthly occurrence of these organisms 

 in numbers per square foot for Site 1. Monthly panels from Site 2 were 

 free of calcareous tubeworms. It is probable that very early stages of 

 this organism were lost during drying or were overlooked in the 

 analyses of dried 1-month panels. The earliest appearance of Site 2 

 calcareous tubeworms was on the 2-month June-August panel (Figs 

 18 and 26). Similarly, tubeworm fouling was found on the 1 -month 

 (May-June) Site 4 panel, but some was present on the 2-month (May- 

 July) panel (Figs 17 and 26). Figure 26 clearly shows the greater and 

 consequently more important calcareous tubeworm occurrence for 

 Site 1. This is substantiated by the comparison of 6-month panels for 

 all sites in Figure 17, which shows calcareous tubeworms as the 

 third most common organism for Site 1. It is evident from Figure 18 

 that no calcareous tubeworm set occurs later than September-October 

 for either Site 1 or 2; no data are available for this period for Site 

 4. Cumulative panel data in Figure 26 indicate first peak occurrences 

 for Sites 1 and 4 in August-September and for Site 2 in July- August. 

 Second peaks occurred for Site 1 in November-December and for 

 Site 2 in October-November; no data were available for Site 4. May- 

 November Site 3 and June-November Site 4 bottom test cylinders were 

 fouled with a few well-developed calcareous tubeworms. 



t 600 



a 



« 500 



400 



300 



Q 200 



00 











• 































A 























|— -•— SITE 1 1956-19581 

 III 









/ 



> 



V 



NO 

 OB 



TE: NO 

 SERVED 



CALCAF 

 ON MC 



EOUS 1 

 )NTHLY 



UBEW0 

 PANEL 



RM SE1 

 > FOR S 



WAS 

 »ITE 2 t 



ND 4 











1 





V 

























J 



r 





"V 



\ 





















/ 



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i. 

















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

 FIGURE 25 CALCAREOUS TUBEWORM FOULING, MONTHLY. 



28 



