Little Crystal (Clay County)

Florida LAKEWATCH Water Chemistry Summary

Location: Latitude 29°49'47", Longitude 82°2'50"

Period of record: 134 sampling dates; May 17, 1987 to December 10, 1999

Surface area (LAKEWATCH): 508 acres / 206 hectacres     Bathymetric Map

Lake Region (Griffith et al. 1997): Trail Ridge

Geologic formation (Brooks 1981):

The geology is dominated by quartz sand and quartzite gravel with sandy clay beds of the Hawthorne Formation.

Physiographic region (Brooks 1981):

The water body lies in the Interlachen Sand Hills division of the Central Lake District.
 
 

Long-term Florida LAKEWATCH Data

Numbers reported below are the minimum, average, and maximum value for the 134 months sampled:

 
Minimum
Average
Maximum
Long-term total phosphorus concentrations (µg/L)
5
14
30
Long-term total nitrogen concentrations (µg/L)
200
490
1200
Long-term total chlorophyll concentrations (µg/L)
1.0
13.8
153.0
Long-term Secchi depth (ft)
1.5
5.7
17.0

1999 Florida LAKEWATCH Data

Numbers reported below are monthly averages calculated from 1 station 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-10-99
8
360
4.0
10.0
Feb-09-99
8
300
3.0
9.0
Mar-10-99
12
260
3.0
.
Apr-02-99
10
410
3.0
8.0
May-11-99
13
290
3.0
11.0
Jun-15-99
9
270
3.0
8.5
Jul-10-99
6
310
4.0
8.0
Aug-09-99
7
370
6.0
7.0
Sep-12-99
15
370
13.0
5.0
Oct-20-99
17
520
10.0
4.0
Nov-18-99
19
610
13.0
2.5
Dec-10-99
17
500
15.0
3.0
         
1999 Average
12
380
6.7
6.9

Little Crystal (Clay County)

Florida LAKEWATCH Aquatic Plant Summary

Aquatic plant data collected on July 2, 1998

Percent area covered with aquatic vegetation (PAC, %)
14
Percent of lake's volume filled with vegetation (PVI, %)
4
Average emergent plant biomass (kg wet wt/m2)
5.8
Average floating-leaved plant biomass (kg wet wt/m2)
0.0
Average submersed plant biomass (kg wet wt/m2)
0.8
Average width of emergent and floating-leaved zone (ft.)
66
Average lake depth (m)
4

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

Common Name Plant Species
Frequency (%)
wax myrtle Myrica cerifera
100
maidencane Panicum hemitomon
100
rush fuirena Fuirena scirpoidea
100
Florida bladderwort Utricularia floridana
100
slender spikerush Eleocharis baldwinii
80
southern cutgrass Leersia hexandra
80
St. John's wort Hypericum spp.
80
red ludwigia Ludwigia repens
60
pickerelweed Pontederia cordata
60
red maple Acer rubrum
60
red bay Persea borbonia
40
hatpin Eriocaulon decangulare
20
respuinata bladderwort Utricularia resupinata
20

Back to L lakes page