Tsala Apopka South (Citrus County)

Florida LAKEWATCH Water Chemistry Summary

Location: Latitude 28°46'10", Longitude 82°16'60"

Period of record: 45 sampling dates; November 20, 1995 to December 8, 1999

Surface area (LAKEWATCH): 337 acres / 136 hectacres     Bathymetric Map

Lake Region (Griffith et al. 1997): Tsala Apopka

Geologic formation (Brooks 1981):

The geology is dominated by limestone consisting of skeletons of fossils in a silt to sand size matrix of the Ocala Limestone Formation.

Physiographic region (Brooks 1981):

The water body lies in the Tsala Apopka Basin division of the Ocala Uplift District.

Supplemental, unpublished water chemistry data, University of Florida.

Numbers reported below are the average for 1 month sampled:
 
pH
7.6
 Sulfate (mg/L)
2.7
Total alkalinity (mg/L as CaCO3)
46.7
 Calcium (mg/L)
19.7
Conductance (µS/cm @ 25 °C)
138
 Magnesium (mg/L)
1.6
Color (Pt-Co units)
127
 Sodium (mg/L)
6.0
Chloride (mg/L)
14.8
 Potassium (mg/L)
0.9
Silicon (mg/L)
1.0
    

Long-term Florida LAKEWATCH Data

Numbers reported below are the minimum, average, and maximum value for the 45 months sampled:

 
Minimum
Average
Maximum
Long-term total phosphorus concentrations (µg/L)
15
37
100
Long-term total nitrogen concentrations (µg/L)
660
970
1420
Long-term total chlorophyll concentrations (µg/L)
2.0
16.6
54.0
Long-term Secchi depth (ft)
1.5
3.1
5.0

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-20-99
16
740
6.3
3.3
Feb-26-99
17
700
6.3
4.1
Apr-06-99
24
830
9.0
3.5
May-03-99
29
940
16.0
3.3
Jun-01-99
42
1050
41.0
2.4
Jul-05-99
32
740
23.0
3.4
Aug-05-99
35
900
19.7
3.0
Sep-07-99
27
830
16.0
3.1
Oct-07-99
16
670
16.7
3.6
Nov-08-99
21
930
14.7
2.8
Dec-08-99
24
840
16.7
3.0
         
1999 Average
26
830
16.8
3.2

 

Tsala Apopka South (Citrus County)

Florida LAKEWATCH Aquatic Plant Summary

Aquatic plant data collected on June 26, 1996

Percent area covered with aquatic vegetation (PAC, %)
8
Percent of lake's volume filled with vegetation (PVI, %)
4
Average emergent plant biomass (kg wet wt/m2)
3.4
Average floating-leaved plant biomass (kg wet wt/m2)
3.4
Average submersed plant biomass (kg wet wt/m2)
0.0
Average width of emergent and floating-leaved zone (ft.)
57
Average lake depth (m)
2

 

Frequency that plant species occur in 10 evenly spaced transects around the lake.

Common Name Plant Species
Frequency (%)
alligator-weed Alternanthera philoxeroides
90
water-pennywort Hydrocotyle umbellata
90
smartweed Polygonum hydropiperoides
80
common salvinia Salvinia rotundifolia
70
maidencane Panicum hemitomon
70
parrot's-feather Myriophyllum aquaticum
60
cat-tail Typha spp.
50
wax myrtle Myrica cerifera
40
sedge family Cyperaceae
30
para grass Brachiaria mutica
30
giant duckweed Spirodela polyrhiza
20
water spinach Ipomoea aquatica
20
slender spikerush Eleocharis baldwinii
20
American lotus Nelumbo lutea
20
water primrose Ludwigia octovalvis
20
buttonbush Cephalanthus occidentalis
20
willow Salix spp.
20
torpedograss Panicum repens
20
bald cypress Taxodium distichum
20
water-lettuce Pistia stratiotes
10
common duckweed Lemna minor
10
floating water-hyacinth Eichhornia crassipes
10
azolla Azolla caroliniana
10
spatterdock Nuphar luteum
10
red ludwigia Ludwigia repens
10
coontail Ceratophyllum demersum
10
bladderwort family Lentibulariaceae
10
salt-bush Baccharis spp.
10
carex sedge Carex spp.
10
knot grass Paspalum distichum
10

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