Estuarine Conditions as of Oct. 6, 2008
St. Lucie Estuary
Current Conditions:
During the last week, an average discharge of 926 cfs occurred at S-80 from C-44 and 706 cfs at S308, 73 cfs discharge at S-97 from C-23, and 244 cfs discharge from S-49 from C-24(discharge values from S-97 and S49 are provisional). The current weekly average salinities (in bold) at the four monitoring sites in the St. Lucie are given below in parts per thousand (ppt), along with the previous week’s (in parenthesis).
|
Weekly Average Salinity (ppt) |
|
|
Sampling Site |
Surface |
Bottom |
Envelope |
|
1.07 (1.14) |
1.86 (2.08) |
|
HR1 (N. Fork) |
5.65 (4.73) |
10.10 (9.57) |
|
|
7.14 (7.02) |
9.10 (10.30) |
8.0 – 25.0 |
A1A Bridge |
15.16 (16.49) |
21.99 (NR) |
20.0 – 31.0 |
Compared with the
previous week, average salinity remained about the same throughout the
estuary. Salinities are close to the lower limit of the preferred range
at
Caloosahatchee Estuary
Current Conditions:
During the last week, an average discharge of 3467 cfs occurred at S-79, 1152 cfs at S-78, and 267 cfs at S-77. The concentration of chlorides at the Olga Plant was 59 ppm yesterday, up from 53 ppm at the beginning of this reporting period. 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 |
|
0.23 (0.22) |
0.24 (0.22) |
Rt. 31 Bridge |
0.23 (0.22) |
0.24 (0.22) |
I-75 Bridge |
0.25 (0.25) |
0.26 (0.26) |
|
0.25 (0.24) |
0.25 (0.24) |
|
1.00 (1.76) |
1.93 (2.57) |
Shell Point |
12.95 (13.30) |
16.92 (17.42) |
In the estuary,
freshwater conditions extend from S-79 downstream to
Compared with the
previous week, average salinity remained about the same throughout the
estuary. Salinities at
FWRI (Fish and
Wildlife Research Institute) reports that very low
concentrations of Karenia brevis, the
click on “Current Week”
click on “Technical Summary”
scroll to the bottom and click on “Coastal Ecosystems
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