40 



Figure 3-22. Infaunal Biomass (Grams Wet-weight/m^) at Beals Island" 



*DM = Constructed Intertidal Flat REF = Reference Site 



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



Biomass strucmre was slightly different between sites, but was relatively consistent 

 over time (Figure 3-23). Polychaetes constimted the majority of biomass at both sites with 

 oligochaetes being second most important at the reference site and oligochaetes or 

 crustaceans being second most important at the constructed flat. Molluscs contributed 

 relatively little while miscellaneous groups formed a substantial amount of biomass only in 

 1998 when a number of large nemerteans were present (personal observation). 



Ecological Monitoring of a Constructed Intertidal Flat at Jonesport, Maine 



