82 



NOAA Technical Report NMFS 140 



H<0.l- 9.9 

 H 10.0-49.9 

 ■ 50.0-1561.3 



GRAMS 

 PER SQUARE METER 



ZOANTHARIA 



Figure 45 

 Geographic distribution of Zoantharia: A — number of specimens per square meter of 

 bottom; B — biomass in grams per square meter of bottom. 



southern New England Shelf area contained the high- 

 est density (0.9/m'-); Georges Slope ranked second with 

 0.4/m'-; and all other areas had 0.2 individual or less 

 per square meter. 



The average biomass of this group of animals in each 

 of the six geographic areas was nearly the same (Tables 

 8, 9; Fig. 52). The biomasses averaged 0.01 g/m 2 or less. 



Frequency of occurrence also yielded a low index of 

 abundance. Percentage of samples containing ttirbel- 

 larians ranged from to 3% (Table 10). 



Bathymetric Distribution 



Turbellarians were most plentiful (2.6 specimens/m-') 



in shallow water, uncommon at depths from 25 to 500 



