Hickorynut South (Orange County)

Florida LAKEWATCH Water Chemistry Summary

Location: Latitude 28°24'49", Longitude 81°38'17"

Period of record: 35 sampling dates; April 13, 1996 to November 20, 1999

Surface area (LAKEWATCH): 537 acres / 217 hectacres     Bathymetric Map

Lake Region (Griffith et al. 1997): Clermont Uplands

Geologic formation (Brooks 1981):

The geology is dominated by deeply weathered beach and dune sand with some clay lenses of the preglacial Pleistocene.

Physiographic region (Brooks 1981):

The water body lies in the Gap 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Supplemental, unpublished water chemistry data, University of Florida.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 1 month sampled:
 
pH
7.0
 Sulfate (mg/L)
17.5
Total alkalinity (mg/L as CaCO3)
14.5
 Calcium (mg/L)
5.7
Conductance (µS/cm @ 25 °C)
170
 Magnesium (mg/L)
5.1
Color (Pt-Co units)
33
 Sodium (mg/L)
12.5
Chloride (mg/L)
27.3
 Potassium (mg/L)
3.6
Silicon (mg/L)
0.1
    

Long-term Florida LAKEWATCH Data

Numbers reported below are the minimum, average, and maximum value for the 35 months sampled:

 
Minimum
Average
Maximum
Long-term total phosphorus concentrations (µg/L)
7
12
21
Long-term total nitrogen concentrations (µg/L)
520
760
990
Long-term total chlorophyll concentrations (µg/L)
2.0
4.5
11.0
Long-term Secchi depth (ft)
3.0
8.3
15.0

1999 Florida LAKEWATCH Data

Numbers reported below are monthly averages calculated from 2 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
Mar-20-99
15
880
5.0
8.0
May-16-99
14
940
5.0
5.5
Jun-26-99
12
670
5.5
7.5
Aug-14-99
16
870
4.5
8.5
Oct-23-99
10
750
5.0
6.5
Nov-20-99
11
720
5.0
10.0
         
1999 Average
13
800
5.0
7.7

Hickorynut South (Orange County)

Florida LAKEWATCH Aquatic Plant Summary

Aquatic plant data collected on August 15, 1996

Percent area covered with aquatic vegetation (PAC, %)
54
Percent of lake's volume filled with vegetation (PVI, %)
6
Average emergent plant biomass (kg wet wt/m2)
3.0
Average floating-leaved plant biomass (kg wet wt/m2)
2.2
Average submersed plant biomass (kg wet wt/m2)
7.1
Average width of emergent and floating-leaved zone (ft.)
160
Average lake depth (m)
4

Frequency that plant species occur in 2 evenly spaced transects around the lake.

Common Name Plant Species
Frequency (%)
banana-lily Nymphoides aquatica
100
fragrant water-lily Nymphaea odorata
100
pickerelweed Pontederia cordata
100
buttonbush Cephalanthus occidentalis
100
stonewort Nitella spp.
100
bladderwort Utricularia foliosa
100
duck-potato Sagittaria lancifolia
50
slender spikerush Eleocharis baldwinii
50
cone-spur bladderwort Utricularia gibba
50
wax myrtle Myrica cerifera
50
water primrose Ludwigia octovalvis
50
willow Salix spp.
50
sawgrass Cladium jamaicense
50
maidencane Panicum hemitomon
50

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