Estuarine Conditions as of November 25, 2008
St. Lucie Estuary
Current Conditions:
Over the past week discharge averaged
213 cfs at S-80. Discharge from the
|
Weekly Average Salinity (ppt) |
|
|
Sampling Site |
Surface |
Bottom |
Envelope |
|
NR (5.31) |
7.12 (6.61) |
|
HR1 (N. Fork) |
14.19 (11.27) |
16.97 (12.58) |
|
|
15.09 (12.68) |
17.27 (14.06) |
8.0 – 25.0 |
A1A Bridge |
24.89 (22.68) |
26.11 (25.09) |
20.0 – 31.0 |
Salinity increased about 1 to 4 ppt
throughout the estuary during the past week. Salinity at
Caloosahatchee Estuary
Current Conditions:
During the last week, discharge averaged 468 cfs at S-79, 308 cfs at S-78, and 478 cfs at S-77. The concentration of chlorides at the Olga Plant was 55 ppm yesterday. The current weekly average salinities (in bold) at the six monitoring sites in the Caloosahatchee Estuary are given below in parts per thousand (ppt), along with the previous week’s (in parenthesis).
|
Weekly Average Salinity (ppt) |
|
Sampling Site |
Surface |
Bottom |
|
3.39 (4.34) |
3.41 (4.33) |
Rt. 31 Bridge |
3.57 (5.14) |
3.85 (5.46) |
I-75 Bridge |
3.93 (5.58) |
5.60 (6.59) |
|
7.97 (9.44) |
11.13 (9.65) |
|
16.69 (17.05) |
18.22 (17.80) |
Shell Point |
26.89 (27.50) |
27.48 (27.97) |
Salinity decreased slightly (about 1
ppt) at all stations except for bottom salinities at
FWRI (Fish and Wildlife Research
Institute) reports that water samples collected
alongshore between Pinellas and Collier counties contained no K. brevis. (www.floridamarine.org).
Monitoring data collected by the River, Estuary and Coastal Observing Network
(RECON) of Sanibel-Captiva Conservation Foundation (SCCF) indicated that over
the last week Chlorophyll concentrations ranged between 3.1 and 7.3 µg/L at Ft.
Myers and 1.3 to 2.3 µg/L at Shell Point. The DO concentration at the two
locations ranged from 5.5 to 8.7 mg/L (www.recon.sccf.org).
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