Juniper East (Walton County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 30°46'3", Longitude 86°7'14"
Period of record: 33 sampling dates; April 19, 1997 to December 15, 1999
Surface area (Shafer et al. 1986): 670 acres / 271 hectacres
Lake Region (Griffith et al. 1997): Dougherty/Marianna Plains
Geologic formation (Brooks 1981):
The geology is dominated by gravel, sand and clay of the Citronelle Formation.
Physiographic region (Brooks 1981):
The water body lies in the De Funiak Karst division of the Dougherty Karst District.
Supplemental, unpublished water chemistry data, University of Florida.
Numbers reported below are the average for 2 months sampled:
|
pH |
5.4 |
Total alkalinity (mg/L as CaCO3) |
0.2 |
|
Conductance (µS/cm @ 25 °C) |
17 |
Color (Pt-Co units) |
33 |
|
Chloride (mg/L) |
4.5 |
|
|
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 33 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
10 |
14 |
21 |
|
Long-term total nitrogen concentrations (µg/L) |
260 |
410 |
590 |
|
Long-term total chlorophyll concentrations (µg/L) |
3.0 |
7.1 |
14.0 |
|
Long-term Secchi depth (ft) |
4.2 |
6.5 |
9.0 |
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-19-99 |
10 |
360 |
3.3 |
7.7 |
|
Feb-16-99 |
11 |
450 |
3.0 |
6.5 |
|
Mar-16-99 |
13 |
440 |
3.0 |
7.0 |
|
Apr-16-99 |
15 |
410 |
7.3 |
5.0 |
|
May-14-99 |
14 |
290 |
5.7 |
7.0 |
|
Jun-15-99 |
12 |
260 |
5.3 |
7.2 |
|
Jul-14-99 |
11 |
320 |
7.0 |
6.0 |
|
Aug-16-99 |
11 |
320 |
8.7 |
6.7 |
|
Sep-15-99 |
14 |
390 |
9.0 |
7.0 |
|
Oct-18-99 |
12 |
360 |
14.0 |
5.7 |
|
Nov-15-99 |
21 |
430 |
6.7 |
8.5 |
|
Dec-15-99 |
12 |
370 |
6.7 |
9.0 |
|
|
|
|
|
|
|
1999 Average |
13 |
370 |
6.6 |
6.9 |
Juniper East (Walton County)
Florida LAKEWATCH Aquatic Plant Summary
Aquatic plant data collected on July 19, 1999
|
Percent area covered with aquatic vegetation (PAC, %) |
82 |
|
Percent of lake's volume filled with vegetation (PVI, %) |
30 |
|
Average emergent plant biomass (kg wet wt/m2) |
2.9 |
|
Average floating-leaved plant biomass (kg wet wt/m2) |
2.7 |
|
Average submersed plant biomass (kg wet wt/m2) |
3.9 |
|
Average width of emergent and floating-leaved zone (ft.) |
64 |
|
Average lake depth (m) |
2 |
Frequency that plant species occur in 10 evenly spaced transects around the lake.
|
Common Name |
Plant Species |
Frequency (%) |
|
Florida bladderwort |
Utricularia floridana |
100 |
|
banana-lily |
Nymphoides aquatica |
90 |
|
maidencane |
Panicum hemitomon |
90 |
|
fragrant water-lily |
Nymphaea odorata |
80 |
|
lemon bacopa |
Bacopa caroliniana |
80 |
|
slender spikerush |
Eleocharis baldwinii |
70 |
|
water-shield |
Brasenia schreberi |
70 |
|
swamp titi |
Cyrilla racemiflora |
60 |
|
wax myrtle |
Myrica cerifera |
50 |
|
red maple |
Acer rubrum |
40 |
|
red ludwigia |
Ludwigia repens |
30 |
|
cat-tail |
Typha spp. |
30 |
|
woolgrass bulrush |
Scirpus cyperinus |
30 |
|
torpedograss |
Panicum repens |
30 |
|
St. John's wort |
Hypericum spp. |
30 |
|
Tracy's beak-rush |
Rhynchospora tracyi |
20 |
|
red root |
Lachnanthes caroliniana |
20 |
|
. |
Rhexia mariana |
20 |
|
. |
Juncus megacephalus |
20 |
|
common arrowhead |
Sagittaria latifolia |
10 |
|
alligator-weed |
Alternanthera philoxeroides |
10 |
|
spatterdock |
Nuphar luteum |
10 |
|
lizard's-tail |
Saururus cernuus |
10 |
|
bacopa |
Bacopa monnieri |
10 |
|
water-pennywort |
Hydrocotyle umbellata |
10 |
|
cone-spur bladderwort |
Utricularia gibba |
10 |
|
water tupelo |
Nyssa aquatica |
10 |
|
water primrose |
Ludwigia octovalvis |
10 |
|
willow |
Salix spp. |
10 |
|
flat-sedge |
Cyperus odoratus |
10 |
|
para grass |
Brachiaria mutica |
10 |
|
soft rush |
Juncus effusus |
10 |
|
yellow-eyed grass |
Xyris spp. |
10 |
|
bald cypress |
Taxodium distichum |
10 |
|
rush |
Juncus marginatus |
10 |
|
dahoon holly |
Ilex cassine |
10 |
|
vasey grass |
Paspalum urvillei |
10 |
Juniper (Walton County)
Electrofishing Data
|
|
|
|
Canfield and Hoyer (1992) Ranges |
||
|
Species1 |
#/hr |
kg/hr2 |
min weight (kg/hr) |
mean weight (kg/hr) |
max weight (kg/hr) |
|
Bluegill |
59 |
0.7 |
0.3 |
50.3 |
447 |
|
Bowfin |
5 |
9.5 |
3 |
54.5 |
225 |
|
Brook silverside |
1 |
0 |
0 |
0.2 |
1.4 |
|
Dollar sunfish |
3 |
0 |
0 |
0.3 |
0.5 |
|
Golden topminnow |
2 |
0 |
0 |
0.1 |
0.2 |
|
Lake chubsucker |
11 |
4.6 |
0.1 |
40.7 |
161.9 |
|
Largemouth bass |
40 |
9.2 |
1.1 |
82 |
284.6 |
|
Redear sunfish |
9 |
0.2 |
0.1 |
24.3 |
183.1 |
|
Redfin pickerel |
1 |
0 |
0.1 |
0.1 |
0.2 |
|
Warmouth |
2 |
0.2 |
0 |
1.5 |
12 |
|
|
|
|
|
|
|
|
Total |
133 |
24.4 |
|
|
|
1
Total # of species = 10.
Catch per unit of effort (kg of fish / hour of sampling) versus total chlorophyll (mg/m3) and number of fish species collected versus surface area of lake for 60 Florida lakes sampled by Canfield and Hoyer (1992) (•) and Lake Juniper (Walton County) electrofishing sampling (o). The lines represent linear regressions for logged values of the 60 Florida lakes.