TABLE 3-2 



COMPOSITE OF THE MODAL ELEVATIONS OF OBSERVED SPECIES AND 



PERCENTAGE OF TRANSECTS COVERED BY EACH 



* By histogram. 



* * Recommended indicator, or dominant species. 



Note: These results exclude species observed to cover less than 2 percent of a transect. 



In comparison to the composite transect for Charleston (Kana, Baca, and Williams 1986) 

 TUckerton's transects are more terraced, with abrupt changes in slope at transitions between tidal 

 flat, low marsh, and high marsh. The circled elevations in Figures 3-3 and 34 are the interpreted 

 upper and lower limits of each subenvironment, based on data from profiles of sixteen transects 

 of the Tuckerton and Great Bay Boulevard marshes. 2 The transects establish the effective lower 

 limit of marsh at elevations of 31 cm (1.0 ft) and 37 cm (1.2 ft) for the low and high tidal range 

 areas, respectively. A major difference between the Tuckerton and the Great Bay Boulevard 

 marshes is the distribution of tidal flats. TUckerton's fringing marsh has very little, whereas the 

 Great Bay Boulevard marsh is bordered by wide flats representing fully one-third of the wetland 

 areas. 



71 



