Estuarine Conditions as of October 10,
2007
St. Lucie Estuary
Current Conditions:
No releases occurred at S-80
over the past week. Weekly average salinities at the four monitoring
sites in the St. Lucie are given below in parts per thousand (ppt).
|
Weekly Average Salinity
(ppt) |
|
|
Sampling Site |
Surface |
Bottom |
Envelope |
|
0.3 |
0.4 |
|
HR1 (N. Fork) |
0.3 |
0.4 |
|
|
0.9 |
1.0 |
8.0 – 25.0 |
A1A Bridge |
6.8 |
16.1 |
20.0 – 31.0 |
Rainfall and associated local
runoff lowered average salinity throughout the estuary last week. Average
salinity for the week was below the preferred at the Roosevelt and A1A Bridges.
Based on the salinity tolerances of the oyster, Crassostrea virginica, salinity
conditions in the estuary are poor (see attached).
Caloosahatchee Estuary
Current Conditions:
Discharge at S-79 averaged
188 cfs over the past week. The concentration of chlorides at the Olga
Plant is 76 mg/l. Average salinity increased slightly throughout the
estuary last week. Data for specific sites are given below in parts per
thousand (ppt). The
|
Weekly Average Salinity
(ppt) |
|
Sampling Site |
Surface |
Bottom |
|
4.7 |
4.7 |
Rt. 31 Bridge |
3.6 |
4.9 |
I-75 Bridge |
3.5 |
6.6 |
|
NA |
NA |
|
17.13 |
23.1 |
Shell Point |
26.7 |
28.1 |
Salinity conditions
throughout the system are good (see attached).
FWRI reports that no Karenia
brevis, the
To find this information on the web:
·
click on “Current Week”
·
click on “Technical Summary”
·
scroll to the bottom and click on “Coastal
Ecosystems”