Ecological monitoring of a constructed Ecological monitoring of a constructed intertidal flat at Jonesport, Me. ecologicalmonito00rayg Year: 1999 23 Figure 3-11. Size Frequency Histograms for Mya arenaria: Beals Island 1992* DM Length (mm) Clam-worms (Nereis virens) Clam-worms were far more abundant in rake and pit samples at the Beals Island constructed flat than the reference area in both 1991 and 1992 (Table 3-6). The same is true for three of the four years where linear contrasts detected significant differences (p<) between the constructed flat and reference area (Table
Ecological monitoring of a constructed Ecological monitoring of a constructed intertidal flat at Jonesport, Me. ecologicalmonito00rayg Year: 1999 23 Figure 3-11. Size Frequency Histograms for Mya arenaria: Beals Island 1992* DM Length (mm) Clam-worms (Nereis virens) Clam-worms were far more abundant in rake and pit samples at the Beals Island constructed flat than the reference area in both 1991 and 1992 (Table 3-6). The same is true for three of the four years where linear contrasts detected significant differences (p<) between the constructed flat and reference area (Table 3-7; Figure 3-12). Differences were detected between sites for all years except 1990 and reference values were higher than constructed flat abundances only in 1993. Size frequency analysis was possible only for the 1992 constructed flat samples; the population was bimodal with peaks in the 110-199 and 200-209 mm categories (Figure 3-13). Table 3-6. Beals Island Clam-worm (Nereis virens) Survey Results* Year DM n REF n 1991 20 4 1992 90 3 * Abundances in No. animals/m^; n = total numbers collected Ecological Monitoring of a Constructed Intertidal Flat at Jonesport, Maine
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