Estuarine Conditions as of November 5, 2007

 

St. Lucie Estuary

 

Current Conditions:

No releases occurred at S-80 over the past week.  The C-24 canal is discharging about 548 cfs at S-97.    No discharge is occurring at S-49 on the C-23 canal. Weekly average salinities at the four monitoring sites in the St. Lucie are given below in parts per thousand (ppt).

 

 

Weekly Average Salinity (ppt)

 

Sampling Site

Surface

Bottom

Envelope

Palm City Bridge (S. Fork)

1.79

1.84

 

HR1 (N. Fork)

2.12

4.52

 

Roosevelt Bridge

5.63

7.91

8.0 – 25.0

A1A Bridge

15.53

23.84

20.0 – 31.0

 

 

There was little change in average salinity over the past week.  Only bottom water at the A1A Bridge fell within the preferred salinity range. Based on the salinity tolerances of the oyster, Crassostrea virginica, salinity conditions in the estuary are poor to fair (see attached).

 

 

Caloosahatchee Estuary

 

Current Conditions:

Discharge at S-79 averaged 24 cfs over the past week.  The concentration of chlorides at the Olga Plant is 103 mg/l.  Average salinity in the estuary changed little over the past week. Data for specific sites are given below in parts per thousand (ppt).

 

 

Weekly Average Salinity (ppt)

Sampling Site

Surface

Bottom

Franklin Locks (S-79)

8.12

8.85

Rt. 31 Bridge

7.83

9.05

I-75 Bridge

8.11

11.97

Ft. Myers Yacht Basin

13.30

16.44

Cape Coral Bridge

22.52

24.14

Shell Point

29.47

30.57

 

Salinity conditions throughout the system are good seaward of Cape Coral.  Conditions in the upper estuary are poor (see attached).

 

 

 

To find this information on the web:

https://my.sfwmd.gov/portal/page?_pageid=1314,2554645,1314_19738269:1314_19738234&_dad=portal&_schema=PORTAL

·        click on “Current Week”

·        click on “Technical Summary”

·        scroll to the bottom and click on “Coastal Ecosystems”

 


 

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