Estuarine Conditions as of December 2, 2008
St.
Lucie Estuary
Current
Conditions:
Over the past week discharge averaged
214 cfs at S-80. Discharge from the
|
Weekly Average Salinity (ppt) |
|
|
Sampling Site |
Surface |
Bottom |
Envelope |
|
3.14 (NR) |
9.62 (7.12) |
|
HR1 (N. Fork) |
14.98 (14.19) |
16.95 (16.97) |
|
|
14.89 (15.09) |
17.27 (17.27) |
8.0 – 25.0 |
A1A Bridge |
23.16 (24.89) |
25.09 (26.11) |
20.0 – 31.0 |
Salinity changed only slightly
throughout the estuary during the past week. Salinity at
Caloosahatchee
Estuary
Current
Conditions:
During the last week, discharge averaged 431 cfs at S-79, 293 cfs at S-78, and 600 cfs at S-77. The concentration of chlorides at the Olga Plant was 54 ppm on Nov. 30. 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 |
|
4.81 (3.39) |
4.92 (3.41) |
Rt. 31 Bridge |
4.60 (3.57) |
5.89 (3.85) |
I-75 Bridge |
4.92 (3.93) |
7.60 (5.60) |
|
11.00 (7.97) |
13.90 (11.13) |
|
18.71 (16.69) |
20.19 (18.22) |
Shell Point |
29.82 (26.89) |
28.75 (27.48) |
Salinity increased throughout the
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 6.5 µg/L at Ft.
Myers and 1.0 to 2.0 µg/L at Shell Point. The DO concentration at the two
locations ranged from 5.8 to 9.0 mg/L (www.recon.sccf.org).
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