Jackson (Highlands County)

Florida LAKEWATCH Water Chemistry Summary

Location: Latitude 27°29'5", Longitude 81°27'52"

Period of record: 53 sampling dates; September 2, 1991 to December 20, 1999

Surface area (LAKEWATCH): No data available.     Bathymetric Map

Lake Region (Griffith et al. 1997): Southern Lake Wales Ridge

Geologic formation (Brooks 1981):

The geology is a mixture of two major types dominated by deeply weathered beach and dune sand with some clay lenses of the preglacial Pleistocene and undifferentiated sand with humate zones and concentrations of heavy minerals of the Pliocene.

Physiographic region (Brooks 1981):

The water body lies in the Eastern Complex of the Central Ridge subdivision of the Lake Wales Ridge division of the Central Lake District.

Supplemental, unpublished water chemistry data, University of Florida.

Numbers reported below are the average for 4 months sampled:
 
pH
6.3
 Sulfate (mg/L)
13.9
Total alkalinity (mg/L as CaCO3)
4.5
 Calcium (mg/L)
4.2
Conductance (µS/cm @ 25 °C)
97
 Magnesium (mg/L)
8.5
Color (Pt-Co units)
7
 Sodium (mg/L)
8.2
Chloride (mg/L)
15.5
 Potassium (mg/L)
2.2
Silicon (mg/L)
0.9
    

Long-term Florida LAKEWATCH Data

Numbers reported below are the minimum, average, and maximum value for the 53 months sampled:

 
Minimum
Average
Maximum
Long-term total phosphorus concentrations (µg/L)
8
16
33
Long-term total nitrogen concentrations (µg/L)
280
400
640
Long-term total chlorophyll concentrations (µg/L)
1.3
6.5
18.3
Long-term Secchi depth (ft)
4.7
8.5
13.7

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
19
390
8.3
6.7
Feb-25-99
23
460
7.7
6.3
Mar-25-99
15
380
5.0
6.3
Apr-22-99
18
380
5.0
7.7
May-21-99
18
430
6.3
8.0
Jun-22-99
19
490
6.3
7.0
Jul-24-99
18
460
6.7
7.7
Aug-25-99
20
480
8.0
6.3
Sep-24-99
18
470
10.0
6.7
Oct-23-99
10
500
9.7
7.7
Nov-22-99
20
500
8.3
6.7
Dec-20-99
21
520
8.0
6.0
         
1999 Average
18
460
7.4
6.9

Jackson (Highlands County)

Florida LAKEWATCH Aquatic Plant Summary

Aquatic plant data collected on August 6, 1996

Percent area covered with aquatic vegetation (PAC, %)
18
Percent of lake's volume filled with vegetation (PVI, %)
2
Average emergent plant biomass (kg wet wt/m2)
4.2
Average floating-leaved plant biomass (kg wet wt/m2)
0.8
Average submersed plant biomass (kg wet wt/m2)
3.1
Average width of emergent and floating-leaved zone (ft.)
397
Average lake depth (m)
4

Frequency that plant species occur in 15 evenly spaced transects around the lake.

Common Name Plant Species
Frequency (%)
slender spikerush Eleocharis baldwinii
87
cat-tail Typha spp.
87
hydrilla Hydrilla verticillata
73
water primrose Ludwigia octovalvis
73
torpedograss Panicum repens
73
pickerelweed Pontederia cordata
67
willow Salix spp.
60
Baldwin flat sedge Cyperus globulosus
53
water-pennywort Hydrocotyle umbellata
47
coontail Ceratophyllum demersum
47
purple bladderwort Utricularia purpurea
47
musk-grass Chara spp.
47
common salvinia Salvinia rotundifolia
40
tapegrass Vallisneria americana
40
smartweed Polygonum hydropiperoides
33
melaleuca Melaleuca quinquenervia
33
maidencane Panicum hemitomon
33
rush fuirena Fuirena scirpoidea
33
common duckweed Lemna minor
27
cone-spur bladderwort Utricularia gibba
27
Cape Blue Water-Lily Nymphaea capensis
27
floating water-hyacinth Eichhornia crassipes
20
water-lettuce Pistia stratiotes
13
duck-potato Sagittaria lancifolia
13
fragrant water-lily Nymphaea odorata
13
southern water-grass Hydrochloa caroliniensis
13
water spinach Ipomoea aquatica
7
spatterdock Nuphar luteum
7
red ludwigia Ludwigia repens
7
Brazilian pepper Schinus terebinthifolius
7
flat-sedge Cyperus odoratus
7
stonewort Nitella spp.
7
pipewort Eriocaulon spp.
7
St. John's wort Hypericum spp.
7
red root Lachnanthes caroliniana
7
water spikerush Eleocharis elongata
7
bald cypress Taxodium distichum
7

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