North Lotta (Orange County)

Florida LAKEWATCH Water Chemistry Summary

Location: Latitude 28°33'3", Longitude 81°30'33"

Period of record: 79 sampling dates; July 30, 1992 to December 7, 1999

Surface area (LAKEWATCH): 35 acres / 14 hectacres    Bathymetric Map

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

Geologic formation (Brooks 1981):

The geology is dominated by phosphatic sand, silty sand, and clay of the Hawthorne Formation.

Physiographic region (Brooks 1981):

The water body lies in the Apopka Hills subdivision of the Apopka Upland division of the Central Lake District.
 
 

Long-term Florida LAKEWATCH Data

Numbers reported below are the minimum, average, and maximum value for the 79 months sampled:

 
Minimum
Average
Maximum
Long-term total phosphorus concentrations (µg/L)
29
62
180
Long-term total nitrogen concentrations (µg/L)
670
890
1240
Long-term total chlorophyll concentrations (µg/L)
1.0
24.4
49.0
Long-term Secchi depth (ft)
2.0
3.9
6.0

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
Feb-08-99
50
850
17.0
3.0
Mar-16-99
36
740
17.7
5.0
Apr-14-99
36
860
17.7
.
May-13-99
34
790
14.0
3.0
Jul-27-99
44
830
25.7
3.0
Aug-02-99
45
840
28.0
3.0
Nov-08-99
56
810
22.3
3.0
Dec-07-99
58
730
20.3
3.0
         
1999 Average
45
810
20.3
3.3

 

North Lotta (Orange County)

Florida LAKEWATCH Aquatic Plant Summary

Aquatic plant data collected on May 17, 1994

Percent area covered with aquatic vegetation (PAC, %)
2
Percent of lake's volume filled with vegetation (PVI, %)
0
Average emergent plant biomass (kg wet wt/m2)
1.4
Average floating-leaved plant biomass (kg wet wt/m2)
2.0
Average submersed plant biomass (kg wet wt/m2)
0.0
Average width of emergent and floating-leaved zone (ft.)
4
Average lake depth (m)
3

 

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

Common Name Plant Species
Frequency (%)
para grass Brachiaria mutica
60
alligator-weed Alternanthera philoxeroides
30
water primrose Ludwigia octovalvis
30
willow Salix spp.
30
elderberry Sambucus canadensis
30
floating water-hyacinth Eichhornia crassipes
20
water-pennywort Hydrocotyle umbellata
20
elephant-ear Colocasia esculenta
20
buttonbush Cephalanthus occidentalis
20
maidencane Panicum hemitomon
20
torpedograss Panicum repens
20
salt-bush Baccharis spp.
10
wax myrtle Myrica cerifera
10
musk-grass Chara spp.
10

 

North Lotta (Orange County)

Florida LAKEWATCH Aquatic Plant Summary

Aquatic plant data collected on August 3, 1999

Percent area covered with aquatic vegetation (PAC, %)
16
Percent of lake's volume filled with vegetation (PVI, %)
3
Average emergent plant biomass (kg wet wt/m2)
10.2
Average floating-leaved plant biomass (kg wet wt/m2)
10.0
Average submersed plant biomass (kg wet wt/m2)
0.0
Average width of emergent and floating-leaved zone (ft.)
15
Average lake depth (m)
3

 

Frequency that plant species occur in 5 evenly spaced transects around the lake.

Common Name Plant Species
Frequency (%)
para grass Brachiaria mutica
100
floating water-hyacinth Eichhornia crassipes
80
water primrose Ludwigia octovalvis
80
elephant-ear Colocasia esculenta
60
willow Salix spp.
60
wax myrtle Myrica cerifera
40
buttonbush Cephalanthus occidentalis
40
torpedograss Panicum repens
40
alligator-weed Alternanthera philoxeroides
20
cat-tail Typha spp.
20
water-pennywort Hydrocotyle umbellata
20
salt-bush Baccharis spp.
20
maidencane Panicum hemitomon
20
musk-grass Chara spp.
20
elderberry Sambucus canadensis
20
red maple Acer rubrum
20

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