Weohyakapka (Polk County)

Florida LAKEWATCH Water Chemistry Summary

Location: Latitude 27°49'6", Longitude 81°24'49"

Period of record: 55 sampling dates; October 26, 1992 to December 29, 1999

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

Lake Region (Griffith et al. 1997): Kissimmee/Okeechobee Lowland

Geologic formation (Brooks 1981):

The geology is dominated by coastal sand and shelly silty sand of the preglacial Pleistocene.

Physiographic region (Brooks 1981):

The water body lies in the Kissimmee Valley division of the Eastern Flatwoods District.
 
 

Supplemental, unpublished water chemistry data, University of Florida.

Numbers reported below are the average for 4 months sampled:
 
pH
7.2
 Sulfate (mg/L)
11.5
Total alkalinity (mg/L as CaCO3)
13.6
 Calcium (mg/L)
4.1
Conductance (µS/cm @ 25 °C)
99
 Magnesium (mg/L)
10.9
Color (Pt-Co units)
35
 Sodium (mg/L)
6.4
Chloride (mg/L)
15.3
 Potassium (mg/L)
1.2
Silicon (mg/L)
3.6
    

Long-term Florida LAKEWATCH Data

Numbers reported below are the minimum, average, and maximum value for the 55 months sampled:

 
Minimum
Average
Maximum
Long-term total phosphorus concentrations (µg/L)
12
21
44
Long-term total nitrogen concentrations (µg/L)
410
650
1100
Long-term total chlorophyll concentrations (µg/L)
2.7
10.7
43.0
Long-term Secchi depth (ft)
2.5
5.5
8.0

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
Apr-20-99
16
520
2.7
6.3
May-18-99
16
490
2.7
7.0
Jun-23-99
17
580
6.7
.
Jul-30-99
17
700
12.7
5.2
Aug-17-99
19
660
10.7
6.3
Nov-01-99
30
790
21.7
2.9
Nov-29-99
33
820
17.3
2.5
Dec-29-99
22
700
9.7
6.2
         
1999 Average
21
660
10.5
5.2

 

Weohyakapka (Polk County)

Florida LAKEWATCH Aquatic Plant Summary

Aquatic plant data collected on June 23, 1999

Percent area covered with aquatic vegetation (PAC, %)
88
Percent of lake's volume filled with vegetation (PVI, %)
51
Average emergent plant biomass (kg wet wt/m2)
3.8
Average floating-leaved plant biomass (kg wet wt/m2)
0.1
Average submersed plant biomass (kg wet wt/m2)
1.6
Average width of emergent and floating-leaved zone (ft.)
162
Average lake depth (m)
2

 

Frequency that plant species occur in 20 evenly spaced transects around the lake.

Common Name Plant Species
Frequency (%)
cat-tail Typha spp.
100
hydrilla Hydrilla verticillata
85
water primrose Ludwigia octovalvis
60
willow Salix spp.
45
buttonbush Cephalanthus occidentalis
40
pickerelweed Pontederia cordata
35
. Nitella prolonga
35
red maple Acer rubrum
35
wax myrtle Myrica cerifera
30
torpedograss Panicum repens
30
giant bulrush Scirpus californicus
25
duck-potato Sagittaria lancifolia
20
baby-tears Micranthemum umbrosum
20
water-pennywort Hydrocotyle umbellata
20
. Scirpus cubensis
15
water tupelo Nyssa aquatica
10
maidencane Panicum hemitomon
10
Egyptian paspalidium Paspalidium geminatum
10
water hemlock Cicuta mexicana
10
sweetbay Magnolia virginiana
10
alligator-weed Alternanthera philoxeroides
5
slender spikerush Eleocharis baldwinii
5
fragrant water-lily Nymphaea odorata
5
tapegrass Vallisneria americana
5
cone-spur bladderwort Utricularia gibba
5
sawgrass Cladium jamaicense
5
. Lyngbya spp.
5
rush fuirena Fuirena scirpoidea
5
red root Lachnanthes caroliniana
5
bald cypress Taxodium distichum
5
club-rush Eleocharis cellulosa
5
bulrush spp. Juncus spp.
5
big rose mallow Hibiscus grandiflorus
5
. Limnophila sessiflora
5

 

Weohyakapka (Polk County)

Electrofishing Data

     
Canfield and Hoyer (1992) Ranges
Species1
#/hr
kg/hr2
min weight (kg/hr)
mean weight (kg/hr)
max weight (kg/hr)
Black crappie
21
9.6
0.1
6.4
28.7
Bluegill
121
9.8
0.3
50.3
447
Bowfin
1
1
3
54.5
225
Brook silverside
2
0
0
0.2
1.4
Chain pickerel
2
1.4
0
17.5
57.1
Florida gar
1
0.7
0.8
50.1
328.6
Golden shiner
4
0.1
0
6.9
65
Lake chubsucker
1
0.8
0.1
40.7
161.9
Largemouth bass
90
43.1
1.1
82
284.6
Redear sunfish
27
1.2
0.1
24.3
183.1
Seminole killifish
1
0
0
4.2
22.3
Spotted sunfish
1
0
0
0.9
3.2
Taillight shiner
3
0
0
0.1
0.4
Warmouth
4
0.3
0
1.5
12
           
Total
279
68
      

1 Total # of species = 14.

2 Weights calculated using regressions from Hoyer and Canfield 1994 and from Bill Schaeffer, Florida Fish and Wildlife Conservation Commission (personal communication).
 
 




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 Weohyakapka (Polk County) electrofishing sampling (o). The lines represent linear regressions for logged values of the 60 Florida lakes.

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