COMMERCIAL FISHERIES REVIEW 



Vol. 28, No. 11 



Red Dye Speckles 800 Miles 

 of Missouri River 



Interior's Geological Survey. The injections 

 will be repeated in December, when the riv- 

 er's flow rate is different. 



An 800 -mile stretch of the Missouri River The project is aimed primarily at obtain- 



received a series of harmless, bright, red- ing useful information on the behavior of wa- 

 dye "injections" last month by hydrologists of ter-borne contaminants under varying stream- 



