MILES 

 OFFSHORE! 



5 10 15 20 



JOHNS PASS 



1964-65 



Figure 4. — Monthly mean salinity and precipitation at stations along the west coast of Florida, February 

 1964 to February 1965. Mean salinities (samples taken at 5-m. intervals in the water column) are shown 

 by vertical .bars; superimposed graphs denote precipitation. 



Salinities were higher at stations in Char- 

 lotte Harbor (from 15.35 to 35.52 p.p.t.). 

 Salinity in Tampa Bay may vary with the 

 stage of the tide by as much as several parts 

 per thousand during a 24-hour period (un- 

 published data, Bureau of Conrimercial 



Fisheries Biological Laboratory, St. Peters- 

 burg Beach, Fla.). Since the Bay stations 

 were sampled without regard to tidal 

 stage, the salinities deternnined may not 

 represent temporal changes for the 

 a rea. 



12 



