TABLE 9-6. 



9-16 



NET GROWTH (IN MM) OF OYSTERS HELD AT NEW HAVEN HARBOR STATION 

 AND FORT HALE; MAY-NOVEMBER, 1972-1977. NEW HAVEN HARBOR 

 ECOLOGICAL STUDIES SUMMARY REPORT, 1979. 



I 



HARBOR STATION 

 1972 1973 1974 1975 1977 x s 



9.0 6.4 13.9 20.3 15.8 11.1 6.9 



X = Mean length 



s = Standard deviation 



FORT HALE 

 1972 1973 1974 1975 1976 1977 



HS & FH 

 X s 



9.0 14.4 7.7 13.9 18. 



14.1 13.0 4.0 



12.0 5.5 



TABLE 9-7. NET GROWTH VERSUS YEAR; COVARIANCE ANALYSIS. NEW HAVEN 

 HARBOR ECOLOGICAL STUDIES SUMMARY REPORT, 1979. 



1976, 1975 >1977 {P< 0.001, experimentwise) 



1976 >1975 (O.OOK P< 0.005, experimentwise) 



6-1 



4- 



2- 



0- 



-4- 



FORT HALE 



HARBOR STATION 



BOTH STATIONS 



1975 



1976 



1977 



Figure 9-6. Difference in adjusted final length versus adjusted mean 

 length (mm) by station and year. New Haven Harbor 

 Ecological Studies Summary Report, 1979. 



