47 



Table 3-19. Similarity Percentage (SIMPER) Results for Deals Island Constructed Flat vs 

 Reference Comparisons by Year* 



Year 



1991 



1992 



1993 



1994 



1998 



Average Dissimilarity 



56.86 



60.15 



56.33 



49.33 



45.47 



Tubificoides benedini 



ll.dS'' 



8.42'' 



8.56'* 



8.97" 



5.24" 



Tectidrilus gabriella 



9.04° 



8.93° 



4.52 



2.21 



2.73 



Poiydora quadrilobata 



6.93 



4.46 



2.65 



5.72" 



4.19 



Ampelisca vadorum 



6.73° 



4.67 



5.44° 



6.74° 



4.87 



Clymenella torquata 



6.30 



3.29 



4.34 



3.75 



3.21 



Streblospio benedicti 



6.27 



3.87 



4.52 



8.39° 



5.77° 



Pygospio elegans 



6.13 



5.82° 



5.63° 







Exogene hebes 



5.87 





10.52" 



8.99" 



8.14" 



Capitella sp. 



4.78 



9.W 



7.07** 



5.17 



4.52 



Phoxocephalus holbolli 



4.26 



4.14 



4.40 



4.05 



3.55 



Tubificoides sp. 



4.15 



0.38 



3.13 



1.96 





Poiydora ligni 



3.50 



2.81 



3.40 



3.27 



1.56 



Nereis virens 



3.33 



3.39 



2.15 



3.70 



3.50 



Heteromastus filiformis 



3.21 



2.6 



2.93 



3.78 



2.05 



Edotea montosa 



3.09 



2.38 



3.23 



4.40 



3.08 



Glycera dibranchiata 



2.51 



1.43 



0.91 



1.12 





Gammarus oceanicus 



2.40 



3.81 



2.51 



3.82 



3.04 



Tubificoides netheroides 



2.07 



3.44 



4.78 



2.23 



4.06 



Mya arenaria 



1.36 



0.40 









1.71 



Oxyurostylis smithi 



1.31 



2.21 



2.24 



0.38 



1.33 



Eteone longa 



1.24 





1.77 



2.29 



2.61 



Scottolana canadensis 



1.04 



4.48 



2.23 



1.30 



2.18 



Thalassomya sp. 



0.62 



4.53 



2.22 



3.00 



3.73 



Corophium volutator 



0.61 



2.68 



2.83 





2.53 



Nemertea 



0.56 



0.42 





0.72 



2.57 



Enchytraeidae 





0.37 



1.67 



1.03 



1.92 



Fabricia sabella 





3.27 



2.56 



0.43 



7.02" 



Exogene verugera 





8.31« 











Idotea balthica 







0.31 





0.83 



1.97 



Spio setosa 









0.43 



5.44 



0.32 



Hydrobia sp. 









3.34 



3.34 



5.43 



Phyllodoce arenae 











1.55 



2.62 



Gemma gemma 











1.40 



2.43 



Crangon septemspinosus 













2.11 



* Values in bold are the five taxa contributing the most to dissimilarity for a comparison. 

 Superscripts indicate where abundances were highest (D — Constructed Flat; R = 

 Reference). 



Ecological Monitoring of a Constructed Intertidal Flat at Jonesport, Maine 



