24 



Table 3-7. ANOVA Results for Reals Island Nereis virens Abundance (Cores)** 



Effect Test 



Source 



DP 



Sum Sq. 



F Ratio 



P 



Site 



1 



15.5506 



54.2444 



< 0.0001 



Year 



1 



23.6299 



20.6329 



< 0.0001 



SiteXYear 



4 



17.1409 



14.9479 



< 0.0001 



Error 



179 



51.3153 



0.2866 





Linear Contrasts** 



1991 1992 1993 1994 1998 

 Estimate 0.3353 1.0286 -0.5670 1.0505 1.1280 



t Ratio 1.9548 7.4407-2.9000 5.3732 5.7695 



Prob > 1 1 1 0.0522 < 0.0001 0.0042 < 0.0001 < 0.0001 



**Negative estimates indicate Dredged Material site abundances less than Reference site 

 values; positive estimates indicate abundances are higher than reference. Figures in bold 

 are significantly different at p^O.Ol. 



Figure 3-12. Abundance of Nereis virens from Beals Island Cores* 

 4000- 



1991 



1992 



1993 



1994 



1998 



* DM = Constructed Intertidal Flat REF = Reference Site 



Values with ****** indicate linear contrasts are significantly different at p <0.01 



Ecological Monitoring of a Constructed Intertidal Flat at Jonesport, Maine 



