102 



NOAA Technical Report NMFS 140 



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POGONOPHORA 



Figure 75 

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

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



nental slope and continental rise (see preceding sec- 

 tions on geographic and bathymetric distribution). 



Among the three temperature range classes in which 

 pogonophores were found, their frequency of occur- 

 rence was highest (15% of the samples) where the 

 temperature range was smallest. Frequency of occur- 

 rence was very low in the other two temperature range 

 classes in which they occurred. 



Relation to Sediment Organic Carbon 



Pogonophores were found where sediment organic car- 

 bon content was low to moderate, ranging from 0.01 to 

 slightly under 2% (Fig. 80). 



Highest density (2.2/m 2 ) occurred in carbon con- 

 tents in the 0.50 to 0.99% range, and lowest (0.1/m 2 ) in 

 the 1.50 to 1.99% range (Table 26). 



