Table lo Salinity and suspended slit in Lake Pontohartrain, Station A< 



Light 



transmission 



photoelectric 



i7b O^ 



98ol 



* 

 * 



* 

 * 



* 



* 



* 

 * 



percent 

 n 



* Analysis of sediment samples incomplete at this timeo 



the Spillway since its opening this year. On February 11 at noon the 

 discharge was 57,000 cubic feet per second and by March 4 it was 223s, 000 

 Cofo/so On March 5 the rate of discharge cut back to 215„000 Cof./so 

 The gradual reduction in the rate of discharge continued through March 12 

 when it was 180,000 Cofo/s« The pattern of the 1950 discharge is somewhat 

 similar to that of 1937 in timing and in magnitude of the rate of Mississippi 

 River water through the Spillway. 



CONDITIONS IN ¥ffiSTERN MISSISSIPPI SOUND 



The major purpose of the survey was to observe conditions in and 

 around the oyster producing areas of western Mississippi Sound* The 

 examination of these waters and oyster beds began February 11 and is 

 still in progress. My personal observations ended when I returned to 

 my home station on February 24» 



The observations centered on salinities, suspended silt, temperatures 

 and conditions of oyster reefs and oysters© Salinity and suspended silt 

 sampling was arranged in a grid pattern composed of three transects running 

 north and south, and two longitudinal lines of stations running east and 

 west* See map attached to this report for station locationso 



