Little Santa Fe (Alachua County)

Florida LAKEWATCH Water Chemistry Summary

Location: Latitude 29°46'25", Longitude 82°5'46"

Period of record: 157 sampling dates; August 16, 1986 to December 12, 1999

Surface area (LAKEWATCH): No data available.     Bathymetric Map

Lake Region (Griffith et al. 1997): Upper Santa Fe Flatwoods

Geologic formation (Brooks 1981):

The geology is dominated by deeply weathered clayey sand and granular sand of the Hawthorne Formation.

Physiographic region (Brooks 1981):

The water body lies in the Perched Lake and Prairies division of the Central Lake District.

Supplemental, unpublished water chemistry data, University of Florida.

Numbers reported below are the average for 4 months sampled:
 
pH
5.2
 Sulfate (mg/L)
6.4
Total alkalinity (mg/L as CaCO3)
0.2
 Calcium (mg/L)
2.7
Conductance (µS/cm @ 25 °C)
70
 Magnesium (mg/L)
1.2
Color (Pt-Co units)
87
 Sodium (mg/L)
7.4
Chloride (mg/L)
15.6
 Potassium (mg/L)
0.5
Silicon (mg/L)
0.2
    

Long-term Florida LAKEWATCH Data

Numbers reported below are the minimum, average, and maximum value for the 157 months sampled:

 
Minimum
Average
Maximum
Long-term total phosphorus concentrations (µg/L)
4
12
46
Long-term total nitrogen concentrations (µg/L)
310
520
910
Long-term total chlorophyll concentrations (µg/L)
2.0
8.3
43.7
Long-term Secchi depth (ft)
2.3
5.1
10.2

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-28-99
11
450
6.7
5.0
Mar-23-99
14
500
4.7
4.5
Apr-12-99
13
500
8.3
4.5
May-16-99
16
580
5.0
6.0
Jun-20-99
17
440
15.0
4.8
Jul-25-99
13
470
13.3
5.8
Aug-22-99
14
530
10.3
6.5
Sep-26-99
12
500
9.3
5.7
Oct-24-99
10
480
5.7
7.2
Nov-21-99
10
500
5.3
7.0
Dec-12-99
10
580
5.0
6.8
         
1999 Average
13
500
8.1
5.8

Little Santa Fe (Alachua County)

Florida LAKEWATCH Aquatic Plant Summary

Aquatic plant data collected on July 6, 1993

Percent area covered with aquatic vegetation (PAC, %)
24
Percent of lake's volume filled with vegetation (PVI, %)
4
Average emergent plant biomass (kg wet wt/m2)
16.2
Average floating-leaved plant biomass (kg wet wt/m2)
3.5
Average submersed plant biomass (kg wet wt/m2)
0.9
Average width of emergent and floating-leaved zone (ft.)
73
Average lake depth (m)
4

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

Common Name Plant Species
Frequency (%)
buttonbush Cephalanthus occidentalis
100
maidencane Panicum hemitomon
100
bald cypress Taxodium distichum
90
wax myrtle Myrica cerifera
80
spatterdock Nuphar luteum
70
pickerelweed Pontederia cordata
70
slender spikerush Eleocharis baldwinii
60
red ludwigia Ludwigia repens
60
floating water-hyacinth Eichhornia crassipes
50
common salvinia Salvinia rotundifolia
50
banana-lily Nymphoides aquatica
30
water-pennywort Hydrocotyle umbellata
30
salt-bush Baccharis spp.
30
sawgrass Cladium jamaicense
30
knot grass Paspalum distichum
30
Baldwin flat sedge Cyperus globulosus
30
alligator-weed Alternanthera philoxeroides
20
cat-tail Typha spp.
20
variable-leaf milfoil Myriophyllum heterophyllum
20
cone-spur bladderwort Utricularia gibba
20
bog-moss Mayaca fluviatilis
20
southern water-grass Hydrochloa caroliniensis
20
elderberry Sambucus canadensis
20
bog button Lachnocaulon spp.
20
duck-potato Sagittaria lancifolia
10
fragrant water-lily Nymphaea odorata
10
dwarf arrowhead Sagittaria subulata
10
tapegrass Vallisneria americana
10
purple bladderwort Utricularia purpurea
10
elephant-ear Colocasia esculenta
10
water primrose Ludwigia octovalvis
10
willow Salix spp.
10
para grass Brachiaria mutica
10

Little Santa Fe (Alachua County)

Florida LAKEWATCH Aquatic Plant Summary

Aquatic plant data collected on May 16, 1996

Percent area covered with aquatic vegetation (PAC, %)
4
Percent of lake's volume filled with vegetation (PVI, %)
1
Average emergent plant biomass (kg wet wt/m2)
6.4
Average floating-leaved plant biomass (kg wet wt/m2)
3.1
Average submersed plant biomass (kg wet wt/m2)
2.1
Average width of emergent and floating-leaved zone (ft.)
67
Average lake depth (m)
5

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

Common Name Plant Species
Frequency (%)
maidencane Panicum hemitomon
100
buttonbush Cephalanthus occidentalis
90
bald cypress Taxodium distichum
90
banana-lily Nymphoides aquatica
80
bog-moss Mayaca fluviatilis
70
floating water-hyacinth Eichhornia crassipes
60
slender spikerush Eleocharis baldwinii
60
cone-spur bladderwort Utricularia gibba
60
spatterdock Nuphar luteum
50
pickerelweed Pontederia cordata
50
water-pennywort Hydrocotyle umbellata
50
water-moss Fontinalis spp.
50
wax myrtle Myrica cerifera
50
red ludwigia Ludwigia repens
40
para grass Brachiaria mutica
40
pipewort Eriocaulon spp.
40
alligator-weed Alternanthera philoxeroides
30
sawgrass Cladium jamaicense
30
common salvinia Salvinia rotundifolia
20
duck-potato Sagittaria lancifolia
20
knot grass Paspalum distichum
20
common duckweed Lemna minor
10
common arrowhead Sagittaria latifolia
10
lemon bacopa Bacopa caroliniana
10
baby-tears Micranthemum umbrosum
10
tapegrass Vallisneria americana
10
purple bladderwort Utricularia purpurea
10
southern naiad Najas guadalupensis
10
willow Salix spp.
10
sedge family Cyperaceae
10
southern water-grass Hydrochloa caroliniensis
10
musk-grass Chara spp.
10
rush fuirena Fuirena scirpoidea
10

Little Santa Fe (Alachua County)

Florida LAKEWATCH Aquatic Plant Summary

Aquatic plant data collected on May 19, 1998

Percent area covered with aquatic vegetation (PAC, %)
24
Percent of lake's volume filled with vegetation (PVI, %)
3
Average emergent plant biomass (kg wet wt/m2)
6.1
Average floating-leaved plant biomass (kg wet wt/m2)
1.8
Average submersed plant biomass (kg wet wt/m2)
0.5
Average width of emergent and floating-leaved zone (ft.)
80
Average lake depth (m)
4

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

Common Name Plant Species
Frequency (%)
maidencane Panicum hemitomon
100
bald cypress Taxodium distichum
100
buttonbush Cephalanthus occidentalis
80
slender spikerush Eleocharis baldwinii
70
pickerelweed Pontederia cordata
60
bog-moss Mayaca fluviatilis
60
wax myrtle Myrica cerifera
60
spatterdock Nuphar luteum
50
cone-spur bladderwort Utricularia gibba
50
banana-lily Nymphoides aquatica
40
water-pennywort Hydrocotyle umbellata
40
tapegrass Vallisneria americana
40
bladderwort Utricularia foliosa
30
floating water-hyacinth Eichhornia crassipes
20
red ludwigia Ludwigia repens
20
water primrose Ludwigia octovalvis
20
sawgrass Cladium jamaicense
20
stonewort Nitella spp.
20
duck-potato Sagittaria lancifolia
10
alligator-weed Alternanthera philoxeroides
10
purple bladderwort Utricularia purpurea
10
water tupelo Nyssa aquatica
10
willow Salix spp.
10
giant bulrush Scirpus californicus
10
soft rush Juncus effusus
10
rush fuirena Fuirena scirpoidea
10
knot grass Paspalum distichum
10
umbrella sedge Cyperus alternifolius
10

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