Estuarine Conditions as of October 28, 2008
St.
Lucie Estuary
Current
Conditions:
Over the past week discharge averaged
212 cfs at S-80. Discharge from the
|
Weekly Average Salinity (ppt) |
|
|
Sampling Site |
Surface |
Bottom |
Envelope |
|
2.96 (0.77) |
3.71(0.83) |
|
HR1 (N. Fork) |
4.81 (1.66) |
9.49 (4.30) |
|
|
8.30 (4.41) |
10.87 (5.52) |
8.0 – 25.0 |
A1A Bridge |
19.62 (16.32) |
25.78 (23.90) |
20.0 – 31.0 |
Compared with the previous week, average
salinity increased from 2.2 ppt to 5.3 ppt throughout in the estuary.
Bottom salinity at the A1A Bridge is within the preferred range and the surface
salinity is close to the lower limit of the preferred range at the A1A
Bridge. Salinity at
Caloosahatchee
Estuary
Current
Conditions:
During the last week, discharge averaged 849 cfs at S-79, 275 cfs at S-78, and 0 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 |
|
0.29 (0.26) |
0.55 (0.27) |
Rt. 31 Bridge |
0.52 (0.27) |
NR (0.28) |
I-75 Bridge |
0.82 (0.31) |
1.99 (0.36) |
|
4.46 (1.19) |
7.32 (2.93) |
|
11.53 (6.78) |
14.71 (10.03) |
Shell Point |
24.73 (21.36) |
NR (22.48) |
Salinity conditions in the upper
estuary east of
An increase in salinity 3- 5 ppt
occurred downstream of
FWRI (Fish and Wildlife Research
Institute) reports that background concentrations of Karenia
brevis, the
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