Estuarine Conditions as of July 10, 2007

 

St. Lucie Estuary

 

Current Conditions:

 

No releases occurred at S-80 over the past week.   At the Roosevelt Bridge salinity averaged 8.31 ppt on the surface and 15.4 ppt on the bottom for the week.  Corresponding values further downstream at the A1A Bridge are 22.96 ppt and 26.08 ppt.  Salinities at both sites are within the preferred range (8-25 ppt for the Roosevelt Bridge and 20-31 ppt for the A1A Bridge) (see attached).

 

 

Caloosahatchee Estuary

 

Current Conditions:

 

Discharge occurred at S-79 over the past week (weekly average 526 cfs).  Weekly average surface salinity ranged from 7.91 ppt at S-79 to 17.43 ppt at Ft. Myers. Bottom salinities ranged from 12.85 ppt at S-79 to 18.23 ppt at Ft. Myers.  Salinity at Shell Point averaged 35.74 ppt on the surface and 36.91 ppt on the bottom.   Although salinity has decreased in the upper estuary, it is still higher than what is desirable.  In the lower estuary and San Carlos Bay high salinities are good for seagrass and fair for oysters (see attached).

 

 

 

To view reports and graphs on line go to:

http://www.sfwmd.gov/org/pld/hsm/reg_app/lok_reg/WIWSE/summaries/lok_outlk.html

 

At the bottom of the page click on “Coastal Ecosystems”

 

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