Dredged materials have been used to construct two mudflats near Jonesport,
Maine (USA), A flat at Sheep Island was constructed in 1989 and along with
an adjacent reference area (REF) has been monitored for infaunal assemblage
development and sediment texture since 1990, The second site, Beals Island
, an example of a much older constructed flat (CF), has been monitored sinc
e 1991, Infaunal taxa richness, total numerical abundance, species composit
ion, and diversity values were similar between the Sheep Island natural and
constructed sites within two years of construction, At Beals Island, taxa
richness and other diversity measures were similar between sites, however,
abundance and total biomass values were lower at the constructed site. Alth
ough total biomass was also lower at the Sheep Island CF than its REF, biom
ass values at both constructed sites (Sheep Island and Beals Island) were w
ithin the range of values previously reported for natural flats, Published
by Elsevier Science Ltd.