OYSTER INVESTIGATIONS IN GEORGIA 



77 



ture of the water had already reached 2G° C. (79° F.) ; that is, 

 it was 6° higher than the lowest temperature (20° C, 68° F.) at 

 which, according to GaltsoiT (19;50), oysters may spawn. It is not 



<n45 



X 40 



3.0 

 2.5 



e PRECIPITATION GREENSBORO 



I •■ BRUNSWICK 



--- MAXIMUM AIR TEMPERATURL 



MINIMUM 



WATER 



— »• BOTTOM SALINITY HIGH TIDE 

 LOW 



JBtin. 



JUNE 



12 

 JULY 



II 

 AUGUST 



Figure 11. — Precipitation, air temperature, water temperature, and salinity at Doboy 

 Island, Ga., June 22 to August 31, 1928 



known whether oysters around Doboy Island had spawned early in 

 the season ; but according to observations made by Weatherby, there 

 was no setting around Doboy Island that could "be attributed to an 

 early spawning. 



