DIVERSITY 



84 



43«UU' 4- 



43*143' .. 



43*42*. _ 



43*41 ' .. 



43*40' .: 



43*39' .. 



43*38' 



43*37' 



70*16' 70*15' 70°14' 70°13' 70*12* 70*11' 70*10* 70* 3' 



Fig. 31. The distribution of mac roben t hie H' diversity in 

 Casco Bay, Maine. 



