VI-137 



essential for establishing the presence or absence of these 

 pathogens. Associated needs are to develop a rapid detection system 

 for quantifying and identifying Salmonella serotypes; determine the 

 growth characteristics of Salmonella and establish whether multi- 

 plication occurs in the saline environment at various temperatures, 

 salinities, and nutrient levels; develop in situ survival patterns 

 to determine relative persistence in salt water and establish the 

 relationship between Salmonella and the fecal coliform group of 

 bacteria. 



The fecal streptococci have provided supplementary data when the 

 fecal origin of col i forms has been in question and when the recency 

 of contamination had to be ascertained. Because of specific animal 

 strains, such as Streptococcus bovis , and Streptococcus equinus , 

 animal contamination can be detected and separated from human waste 

 sources. However, as with fecal col i forms, data on the efficiency 

 of detection and on the behavior of fecal streptococci in salt water 

 are limited and need to be developed. Desirable investigations should 

 involve increase in the specificity of recovery media; establishment 

 of the various conditions of temperatures, salinity, and nutrient 

 levels; in situ survival patterns of fecal streptococci, establishment 

 of the relationship between fecal streptococci and Salmonella , and the 

 development of rapid detection and identification systems amenable to 

 continuous water quality monitoring. 



