Tsala Apopka (Citrus County)

Florida LAKEWATCH Water Chemistry Summary

Location: Latitude 28°51'4", Longitude 82°17'53"

Period of record: 53 sampling dates; June 23, 1994 to December 24, 1999

Surface area (LAKEWATCH): 238 acres / 96 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Supplemental, unpublished water chemistry data, University of Florida.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
7.3
 Sulfate (mg/L)
0.0
Total alkalinity (mg/L as CaCO3)
47.3
 Calcium (mg/L)
19.3
Conductance (µS/cm @ 25 °C)
139
 Magnesium (mg/L)
1.7
Color (Pt-Co units)
69
 Sodium (mg/L)
6.3
Chloride (mg/L)
15.2
 Potassium (mg/L)
1.0
Silicon (mg/L)
3.1
    

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)
12
21
71
Long-term total nitrogen concentrations (µg/L)
690
940
1270
Long-term total chlorophyll concentrations (µg/L)
2.3
8.7
20.7
Long-term Secchi depth (ft)
3.0
5.5
8.0

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-21-99
17
780
8.3
7.8
Feb-26-99
16
720
6.3
7.2
Mar-20-99
15
710
4.0
7.8
Apr-21-99
21
830
6.3
7.0
May-24-99
23
910
7.0
6.5
Jun-21-99
19
820
10.0
8.0
Jul-21-99
19
880
10.7
6.5
Aug-20-99
18
910
10.0
6.8
Sep-20-99
12
950
11.7
6.0
Oct-23-99
17
990
12.7
6.8
Nov-18-99
13
940
7.0
7.0
Dec-24-99
21
890
7.3
.
         
1999 Average
17
860
8.4
7.0

 

Tsala Apopka (Citrus County)

Florida LAKEWATCH Aquatic Plant Summary

Aquatic plant data collected on August 14, 1996

Percent area covered with aquatic vegetation (PAC, %)
12
Percent of lake's volume filled with vegetation (PVI, %)
5
Average emergent plant biomass (kg wet wt/m2)
6.9
Average floating-leaved plant biomass (kg wet wt/m2)
3.8
Average submersed plant biomass (kg wet wt/m2)
0.3
Average width of emergent and floating-leaved zone (ft.)
1530
Average lake depth (m)
3

 

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

Common Name Plant Species
Frequency (%)
spatterdock Nuphar luteum
100
slender spikerush Eleocharis baldwinii
90
cat-tail Typha spp.
90
common salvinia Salvinia rotundifolia
80
alligator-weed Alternanthera philoxeroides
80
water-pennywort Hydrocotyle umbellata
80
cone-spur bladderwort Utricularia gibba
80
maidencane Panicum hemitomon
80
water primrose Ludwigia octovalvis
70
water spinach Ipomoea aquatica
50
smartweed Polygonum hydropiperoides
60
coontail Ceratophyllum demersum
60
floating water-hyacinth Eichhornia crassipes
50
wax myrtle Myrica cerifera
40
willow Salix spp.
40
duck-potato Sagittaria lancifolia
30
American lotus Nelumbo lutea
30
pickerelweed Pontederia cordata
30
buttonbush Cephalanthus occidentalis
30
knot grass Paspalum distichum
30
bald cypress Taxodium distichum
30
lemon bacopa Bacopa caroliniana
20
Illinois pondweed Potamogeton illinoensis
20
torpedograss Panicum repens
20
bladderwort Utricularia foliosa
20
jointed flat sedge Cyperus haspan
20
banana-lily Nymphoides aquatica
10
red ludwigia Ludwigia repens
10
purple bladderwort Utricularia purpurea
10
salt-bush Baccharis spp.
10
sawgrass Cladium jamaicense
10
para grass Brachiaria mutica
10
southern cutgrass Leersia hexandra
10

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