Pansy (Polk County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°4'5", Longitude 81°44'34"
Period of record: 78 sampling dates; March 21, 1992 to November 28, 1998
Surface area (Shafer et al. 1986): 50 acres / 20 hectacres
Lake Region (Griffith et al. 1997): Winter Haven/Lake Henry Ridges
Geologic formation (Brooks 1981):
The geology is dominated by deeply weathered clayey sand and granular sand of the Hawthorne Formation.
Physiographic region (Brooks 1981):
The water body lies in the Winter Haven Karst division of the Central Lake District.
Supplemental, unpublished water chemistry data, University of Florida.
Numbers reported below are the average for 1 month sampled:
|
pH |
7.9 |
Sulfate (mg/L) |
20.7 |
|
Total alkalinity (mg/L as CaCO3) |
22.0 |
Conductance (µS/cm @ 25 °C) |
147 |
|
Color (Pt-Co units) |
49 |
Chloride (mg/L) |
15.0 |
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 78 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
17 |
37 |
94 |
|
Long-term total nitrogen concentrations (µg/L) |
510 |
740 |
1320 |
|
Long-term total chlorophyll concentrations (µg/L) |
4.0 |
14.9 |
32.7 |
|
Long-term Secchi depth (ft) |
1.9 |
3.1 |
5.2 |
Florida LAKEWATCH data were not collected in 1999.
Pansy (Polk County)
Florida LAKEWATCH Aquatic Plant Summary
Aquatic plant data collected on May 18, 1993
|
Percent area covered with aquatic vegetation (PAC, %) |
20 |
|
Percent of lake's volume filled with vegetation (PVI, %) |
3 |
|
Average emergent plant biomass (kg wet wt/m2) |
6.7 |
|
Average floating-leaved plant biomass (kg wet wt/m2) |
1.0 |
|
Average submersed plant biomass (kg wet wt/m2) |
0.0 |
|
Average width of emergent and floating-leaved zone (ft.) |
21 |
|
Average lake depth (m) |
2 |
Frequency that plant species occur in 10 evenly spaced transects around the lake.
|
Common Name |
Plant Species |
Frequency (%) |
|
maidencane |
Panicum hemitomon |
80 |
|
alligator-weed |
Alternanthera philoxeroides |
70 |
|
cat-tail |
Typha spp. |
50 |
|
water primrose |
Ludwigia octovalvis |
50 |
|
torpedograss |
Panicum repens |
50 |
|
para grass |
Brachiaria mutica |
30 |
|
spatterdock |
Nuphar luteum |
20 |
|
pickerelweed |
Pontederia cordata |
20 |
|
common salvinia |
Salvinia rotundifolia |
10 |
|
fragrant water-lily |
Nymphaea odorata |
10 |
|
Baldwin flat sedge |
Cyperus globulosus |
10 |
|
maidencane |
Panicum hemitomon |
90 |
|
pickerelweed |
Pontederia cordata |
80 |
|
musk-grass |
Chara spp. |
70 |
|
duck-potato |
Sagittaria lancifolia |
60 |
|
slender spikerush |
Eleocharis baldwinii |
50 |
|
variableleaf pondweed |
Potamogeton diversifolius |
50 |
|
water primrose |
Ludwigia octovalvis |
40 |
|
torpedograss |
Panicum repens |
40 |
|
fragrant water-lily |
Nymphaea odorata |
30 |
|
cat-tail |
Typha spp. |
30 |
|
buttonbush |
Cephalanthus occidentalis |
20 |
|
alligator-weed |
Alternanthera philoxeroides |
10 |
|
spatterdock |
Nuphar luteum |
10 |
|
water-pennywort |
Hydrocotyle umbellata |
10 |
|
dwarf arrowhead |
Sagittaria subulata |
10 |
|
hydrilla |
Hydrilla verticillata |
10 |
|
sawgrass |
Cladium jamaicense |
10 |
|
Baldwin flat sedge |
Cyperus globulosus |
10 |