Center (Osceola County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°16'44", Longitude 81°11'25"
Period of record: 75 sampling dates; June 23, 1990 to December 25, 1999
Surface area (LAKEWATCH): 298 acres / 120 hectacres (Bathymetric Map)
Lake Region (Griffith et al. 1997): Osceola Slope
Geologic formation (Brooks 1981):
The geology is dominated by coastal sand and shelly silty sand of the preglacial Pleistocene.
Physiographic region (Brooks 1981):
The water body lies in the Kissimmee Valley division of the Eastern Flatwoods District.
Supplemental, unpublished water chemistry data, University of Florida.
Numbers reported below are the average for 1 month sampled:
|
pH |
5.6 |
Sulfate (mg/L) |
9.4 |
|
Total alkalinity (mg/L as CaCO3) |
1.2 |
Calcium (mg/L) |
3.9 |
|
Conductance (µS/cm @ 25 °C) |
116 |
Magnesium (mg/L) |
2.9 |
|
Color (Pt-Co units) |
289 |
Sodium (mg/L) |
13.0 |
|
Chloride (mg/L) |
25.0 |
Potassium (mg/L) |
2.6 |
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 75 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
13 |
56 |
103 |
|
Long-term total nitrogen concentrations (µg/L) |
790 |
1220 |
1650 |
|
Long-term total chlorophyll concentrations (µg/L) |
2.0 |
9.4 |
27.0 |
|
Long-term Secchi depth (ft) |
0.5 |
1.3 |
2.2 |
1999 Florida LAKEWATCH Data
Numbers reported below are monthly averages calculated from 4 stations for total phosphorus (TP, µg/L), total nitrogen (TN, µg/L), chlorophyll (CHL, µg/L) and Secchi depth (SECCHI, ft) during 1999:
|
Date |
TP (µg/L) |
TN (µg/L) |
CHL (µg/L) |
SECCHI (ft |
|
Feb-20-99 |
60 |
790 |
6.5 |
1.5 |
|
May-05-99 |
69 |
950 |
19.7 |
1.5 |
|
Jun-07-99 |
59 |
800 |
12.3 |
1.5 |
|
Jul-03-99 |
103 |
890 |
27.0 |
1.3 |
|
Aug-25-99 |
85 |
950 |
19.0 |
. |
|
Sep-28-99 |
80 |
1540 |
9.0 |
1.5 |
|
Oct-18-99 |
79 |
1580 |
9.3 |
1.5 |
|
Nov-27-99 |
68 |
1650 |
3.7 |
1.0 |
|
Dec-25-99 |
65 |
1610 |
5.0 |
1.0 |
|
|
|
|
|
|
|
1999 Average |
74 |
1190 |
12.4 |
1.4 |
Center (Osceola County)
Florida LAKEWATCH Aquatic Plant Summary
Aquatic plant data collected on June 30, 1993
|
Percent area covered with aquatic vegetation (PAC, %) |
10 |
|
Percent of lake's volume filled with vegetation (PVI, %) |
1 |
|
Average emergent plant biomass (kg wet wt/m2) |
2.6 |
|
Average floating-leaved plant biomass (kg wet wt/m2) |
1.0 |
|
Average submersed plant biomass (kg wet wt/m2) |
0.1 |
|
Average width of emergent and floating-leaved zone (ft.) |
147 |
|
Average lake depth (m) |
2 |
Frequency that plant species occur in 10 evenly spaced transects around the lake.
|
Common Name |
Plant Species |
Frequency (%) |
|
spatterdock |
Nuphar luteum |
70 |
|
cat-tail |
Typha spp. |
70 |
|
maidencane |
Panicum hemitomon |
70 |
|
common salvinia |
Salvinia rotundifolia |
50 |
|
pickerelweed |
Pontederia cordata |
50 |
|
elephant-ear |
Colocasia esculenta |
50 |
|
wax myrtle |
Myrica cerifera |
50 |
|
water primrose |
Ludwigia octovalvis |
50 |
|
alligator-weed |
Alternanthera philoxeroides |
40 |
|
torpedograss |
Panicum repens |
40 |
|
water-pennywort |
Hydrocotyle umbellata |
30 |
|
para grass |
Brachiaria mutica |
30 |
|
rush fuirena |
Fuirena scirpoidea |
30 |
|
willow |
Salix spp. |
20 |
|
Baldwin flat sedge |
Cyperus globulosus |
20 |
|
floating water-hyacinth |
Eichhornia crassipes |
10 |
|
slender spikerush |
Eleocharis baldwinii |
10 |
|
red ludwigia |
Ludwigia repens |
10 |
|
smartweed |
Polygonum hydropiperoides |
10 |
|
variableleaf pondweed |
Potamogeton diversifolius |
10 |
Center (Osceola County)
Florida LAKEWATCH Aquatic Plant Summary
Aquatic plant data collected on June 10, 1998
|
Percent area covered with aquatic vegetation (PAC, %) |
4 |
|
Percent of lake's volume filled with vegetation (PVI, %) |
1 |
|
Average emergent plant biomass (kg wet wt/m2) |
8.2 |
|
Average floating-leaved plant biomass (kg wet wt/m2) |
1.3 |
|
Average submersed plant biomass (kg wet wt/m2) |
0.0 |
|
Average width of emergent and floating-leaved zone (ft.) |
119 |
|
Average lake depth (m) |
2 |
Frequency that plant species occur in 10 evenly spaced transects around the lake.
|
Common Name |
Plant Species |
Frequency (%) |
|
common salvinia |
Salvinia rotundifolia |
100 |
|
maidencane |
Panicum hemitomon |
100 |
|
alligator-weed |
Alternanthera philoxeroides |
90 |
|
spatterdock |
Nuphar luteum |
80 |
|
cat-tail |
Typha spp. |
80 |
|
torpedograss |
Panicum repens |
80 |
|
elephant-ear |
Colocasia esculenta |
70 |
|
wax myrtle |
Myrica cerifera |
60 |
|
pickerelweed |
Pontederia cordata |
50 |
|
water-pennywort |
Hydrocotyle umbellata |
50 |
|
giant bulrush |
Scirpus californicus |
40 |
|
duck-potato |
Sagittaria lancifolia |
20 |
|
water primrose |
Ludwigia octovalvis |
20 |
|
floating water-hyacinth |
Eichhornia crassipes |
10 |
|
frog's-bit |
Limnobium spongia |
10 |
|
willow |
Salix spp. |
10 |
|
para grass |
Brachiaria mutica |
10 |
|
jointed flat sedge |
Cyperus haspan |
10 |
|
sedge spp. |
Cyperus spp. |
10 |