668 Marine Microbiology 



phate was determined by the method of Wooster (17). For or- 

 ganic phosphorus determinations, the samples were digested bv 

 the method of Strickland ( 14 ) and the resulting phosphorus was 

 measured by the method of Wooster ( 17 ) . Before the colori- 

 metric phosphorus determinations were made, solids were re- 

 mo\ed by passing the sample through a Millipore Filter. Residual 

 P was washed from the filter and apparatus. The phosphorus ad- 

 sorbed to the glass receptacles was removed by acid rinsing. 

 All phosphate data were corrected for salt error. 



RESULTS 



Data for total and inorganic phosphorus and chloride for 

 water and salt samples collected during July to September, 1959 

 are given in Tables 1 and 2. Data for sediment at depths im- 

 mediately below the salt layers to 3 cm are not provided in 

 table form. Total phosphorus in the sediments below the salts, 

 ranged from 0.25 to 8.9 ygA/lOOg with an average of 1.7. The 

 inorganic phosphorus ranged from 0.11 to 0.65 with an average of 

 0.38. Ten samples were analyzed from the several areas. 



TABLE 1 



Total and Inorganic Phosphorus in Salts Collected From 

 Sediment Surfaces at Locations Shown in Figure 1 



* Samples taken immediately after a heavy rain. Little salt remained on the 

 surface sediment. 



