Spirit (Polk County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 27°59'53", Longitude 81°46'38"
Period of record: 34 sampling dates; October 27, 1991 to December 26, 1999
Surface area (Shafer et al. 1986): 224 acres / 91 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Supplemental, unpublished water chemistry data, University of Florida.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 2 months sampled:
|
pH |
8.0 |
Sulfate (mg/L) |
49.7 |
|
Total alkalinity (mg/L as CaCO3) |
36.5 |
Conductance (µS/cm @ 25 °C) |
314 |
|
Color (Pt-Co units) |
9 |
Chloride (mg/L) |
35.0 |
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 34 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
15 |
27 |
45 |
|
Long-term total nitrogen concentrations (µg/L) |
500 |
730 |
1530 |
|
Long-term total chlorophyll concentrations (µg/L) |
8.3 |
21.5 |
79.3 |
|
Long-term Secchi depth (ft) |
2.1 |
5.4 |
7.5 |
1999 Florida LAKEWATCH Data
Numbers reported below are monthly averages calculated from 3 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 |
|
Jan-26-99 |
30 |
570 |
15.7 |
6.8 |
|
Feb-25-99 |
20 |
540 |
13.0 |
6.8 |
|
Mar-28-99 |
27 |
500 |
8.3 |
7.0 |
|
Apr-25-99 |
26 |
740 |
17.0 |
4.1 |
|
May-25-99 |
18 |
610 |
8.3 |
6.3 |
|
Jun-21-99 |
15 |
570 |
12.3 |
6.0 |
|
Jul-26-99 |
17 |
530 |
10.7 |
5.8 |
|
Aug-25-99 |
18 |
500 |
9.0 |
6.2 |
|
Sep-26-99 |
19 |
650 |
14.0 |
6.4 |
|
Oct-30-99 |
25 |
630 |
21.3 |
5.0 |
|
Nov-21-99 |
27 |
680 |
17.7 |
4.8 |
|
Dec-26-99 |
27 |
660 |
18.3 |
7.5 |
|
|
|
|
|
|
|
1999 Average |
22 |
600 |
13.8 |
6.1 |
Spirit (Polk County)
Florida LAKEWATCH Aquatic Plant Summary
Aquatic plant data collected on May 13, 1993
|
Percent area covered with aquatic vegetation (PAC, %) |
54 |
|
Percent of lake's volume filled with vegetation (PVI, %) |
26 |
|
Average emergent plant biomass (kg wet wt/m2) |
6.7 |
|
Average floating-leaved plant biomass (kg wet wt/m2) |
4.9 |
|
Average submersed plant biomass (kg wet wt/m2) |
0.5 |
|
Average width of emergent and floating-leaved zone (ft.) |
59 |
|
Average lake depth (m) |
4 |
Frequency that plant species occur in 10 evenly spaced transects around the lake.
|
Common Name |
Plant Species |
Frequency (%) |
|
dwarf arrowhead |
Sagittaria subulata |
70 |
|
duck-potato |
Sagittaria lancifolia |
60 |
|
cat-tail |
Typha spp. |
60 |
|
floating water-hyacinth |
Eichhornia crassipes |
40 |
|
water-pennywort |
Hydrocotyle umbellata |
40 |
|
water primrose |
Ludwigia octovalvis |
40 |
|
torpedograss |
Panicum repens |
30 |
|
musk-grass |
Chara spp. |
30 |
|
jointed flat sedge |
Cyperus haspan |
30 |
|
slender spikerush |
Eleocharis baldwinii |
20 |
|
pickerelweed |
Pontederia cordata |
20 |
|
willow |
Salix spp. |
20 |
|
rush fuirena |
Fuirena scirpoidea |
20 |
|
common salvinia |
Salvinia rotundifolia |
10 |
|
smartweed |
Polygonum hydropiperoides |
10 |
|
baby-tears |
Micranthemum umbrosum |
10 |
|
tapegrass |
Vallisneria americana |
10 |
|
sawgrass |
Cladium jamaicense |
10 |
|
maidencane |
Panicum hemitomon |
10 |
Spirit (Polk County)
Florida LAKEWATCH Aquatic Plant Summary
Aquatic plant data collected on August 17, 1994
|
Percent area covered with aquatic vegetation (PAC, %) |
not sampled |
|
Percent of lake's volume filled with vegetation (PVI, %) |
not sampled |
|
Average emergent plant biomass (kg wet wt/m2) |
5.3 |
|
Average floating-leaved plant biomass (kg wet wt/m2) |
5.4 |
|
Average submersed plant biomass (kg wet wt/m2) |
7.4 |
|
Average width of emergent and floating-leaved zone (ft.) |
41 |
|
Average lake depth (m) |
not sampled |
Frequency that plant species occur in 10 evenly spaced transects around the lake.
|
Common Name |
Plant Species |
Frequency (%) |
|
cat-tail |
Typha spp. |
90 |
|
water primrose |
Ludwigia octovalvis |
90 |
|
tapegrass |
Vallisneria americana |
80 |
|
spatterdock |
Nuphar luteum |
60 |
|
coontail |
Ceratophyllum demersum |
40 |
|
melaleuca |
Melaleuca quinquenervia |
40 |
|
wax myrtle |
Myrica cerifera |
30 |
|
torpedograss |
Panicum repens |
30 |
|
duck-potato |
Sagittaria lancifolia |
20 |
|
pickerelweed |
Pontederia cordata |
20 |
|
hydrilla |
Hydrilla verticillata |
20 |
|
elephant-ear |
Colocasia esculenta |
20 |
|
willow |
Salix spp. |
20 |
|
knot grass |
Paspalum distichum |
20 |
|
floating water-hyacinth |
Eichhornia crassipes |
10 |
|
alligator-weed |
Alternanthera philoxeroides |
10 |
|
cone-spur bladderwort |
Utricularia gibba |
10 |