54 



NOAA Technical Report NMFS 140 



of organic carbon in the sediments ranged from 3.0 to 

 4.99 (2,588/m 2 ) and 2.00 to 2.99 (2,042/m 2 ). In areas 

 containing from 0.01 to 0.49 and from 1.00 to 1.49 

 percent organic carbon, densities were about 50% lower 

 (1,858/m 2 , and 1,015/m 2 , respectively). Significantly 

 lower densities occurred in other ranges; lowest densi- 

 ties (44/m 2 ) were recorded in areas containing the 

 greatest amount of organic carbon (5% and greater). 

 Density values over the whole range of organic carbon 



content as well as between adjacent classes were too 

 variable to show any definite trends. 



Correlations between die distribution of biomass and 

 sediment organic carbon (Tables 28, 29; Fig. 26) were 

 somewhat better but not uniform enough to denote any 

 positive trends. Largest biomass (959 g/m 2 ) was recorded 

 were organic carbon ranged between 2.00 and 2.99%, and 

 next largest was 809 g/m 2 in the 3.00 to 4.99% range, but 

 biomass was less than 1 g/m 2 in ranges of 5% and over. 



