Estuarine Conditions as of November 12,
2007
St. Lucie Estuary
Current Conditions:
There were no
releases through S-80 over the past week. The C-24 canal discharge is
down from last week to about 294 cfs at S-97. Discharges at S-49 on the
C-23 canal are currently 229 cfs. 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 |
|
2.5 (1.8) |
2.9 (1.8) |
|
HR1 (N. Fork) |
7.3 (2.12) |
10.3 (4.52) |
|
|
9.7 (5.63) |
12.1 (7.91) |
8.0 – 25.0 |
A1A Bridge |
17.9 (15.53) |
24.4 (23.84) |
20.0 – 31.0 |
Salinity conditions
improved by increasing this week throughout the estuary. Both the surface and
bottom salinity are now up to the preferred range at the
Caloosahatchee Estuary
Current Conditions:
S-79 has not been
recording discharge values since last Tuesday when the previous average week’s
discharge was 24 cfs. Also, no current chloride values were reported at the
structure. Average salinity increased last week by more than 2 ppt in the upper
estuary, including at the
|
Weekly Average Salinity
(ppt) |
|
Sampling Site |
Surface |
Bottom |
|
10.9 (8.1) |
12.3 (8.9) |
Rt. 31 Bridge |
10.2 (7.8) |
13.7 (9.1) |
I-75 Bridge |
10.5 (8.1) |
14.2
(12.0) |
|
15.4
(13.3) |
17.1
(16.4) |
|
22.3
(22.5) |
24.5
(24.1) |
Shell Point |
30.0
(29.5) |
30.9
(30.6) |
Salinity conditions throughout
the system remain good seaward of
Water samples taken
last week (reported on Nov 9 by FWRI) detected only background concentrations
of red tide (Karenia brevis) along portions of
To find this information on the web:
·
click on “Current Week”
·
click on “Technical Summary”
·
scroll to the bottom and click on “Coastal
Ecosystems”