182 



NOAA Technical Report NMFS 140 



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BOTTOM SEDIMENTS 



Figure 193 

 Density and biomass of Bryozoa in relation to bottom sediments. 



the New England region. Although often 

 locally significant in terms of density and 

 biomass, their contribution to the total fauna 

 was limited by the patchiness of suitable habi- 

 tats. Brachiopods accounted for only 0.3% 

 of the total number of specimens and 0.7% 

 of the total biomass (Table 3). 



Brachiopod diversity was also noteworthy. 

 Although the phylum is not noted for large num- 

 bers of species, there being only about 280 

 known living species, our samples contained 

 only members of one genus, Terabratulina. 



Size of specimens ranged from about 5 mm 

 to some large specimens of about 30 mm 

 length. Color was typical for the genus with 

 dull white and silvery gray hues predominat- 

 ing; many specimens were fouled by other 

 sessile forms such as bryozoans, hydroids, and 

 encrusting sponges of various hues, but tans, 

 browns, yellows, and grass predominated. 



