Estuarine Conditions as of December 16, 2008
St.
Lucie Estuary
Current
Conditions:
Over the past week discharge averaged
194 cfs at S-80. Discharge from the
|
Weekly Average Salinity (ppt) |
|
|
Sampling Site |
Surface |
Bottom |
Envelope |
|
7.14 (2.93) |
8.87 (9.92) |
|
HR1 (N. Fork) |
14.43 (13.78) |
15.19 (16.17) |
|
|
15.90 (14.85) |
17.21 (17.17) |
8.0 – 25.0 |
A1A Bridge |
24.49 (23.37) |
26.08 (25.17) |
20.0 – 31.0 |
Salinity changed only slightly throughout
the estuary during the past week, with the exception of surface salinity at
Caloosahatchee
Estuary
Current
Conditions:
During the last week, discharge averaged 494 cfs at S-79, 217 cfs at S-78, and 150 cfs at S-77. The concentration of chlorides at the Olga Plant was 65 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 |
|
3.92 (3.99) |
4.09 (4.13) |
Rt. 31 Bridge |
4.34 (4.27) |
4.65 (4.53) |
I-75 Bridge |
4.76 (4.69) |
6.55 (6.38) |
|
10.71 (9.90) |
11.79 (12.42) |
|
19.64 (17.83) |
20.55 (19.09) |
Shell Point |
28.97 (27.01) |
30.47 (27.98) |
Salinity increased less than 1 ppt in
the upper estuary and about 1-2 ppt in the lower estuary. Salinity conditions
in the upper estuary east of
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 and 9.5 µg/L at Ft.
Myers and 1.2 to 2.5 µg/L at Shell Point. The DO concentration at the two
locations ranged from 6.0 to 8.4 mg/L (www.recon.sccf.org).
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