Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 27°23'37", Longitude 81°26'24"
Period of record: 45 sampling dates; March 16, 1996 to December 19, 1999
Surface area (LAKEWATCH): No data available. Bathymetric Map
Lake Region (Griffith et al. 1997): Lake Wales Ridge Transition
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 Eastern Complex of the Central Ridge 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Supplemental, unpublished water chemistry data, University of Florida.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 2 months sampled:
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Sulfate (mg/L) |
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| Total alkalinity (mg/L as CaCO3) |
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Calcium (mg/L) |
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| Conductance (µS/cm @ 25 °C) |
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Magnesium (mg/L) |
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| Color (Pt-Co units) |
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Sodium (mg/L) |
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| Chloride (mg/L) |
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Potassium (mg/L) |
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| Silicon (mg/L) |
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Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 45 months sampled:
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| Long-term total phosphorus concentrations (µg/L) |
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| Long-term total nitrogen concentrations (µg/L) |
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| Long-term total chlorophyll concentrations (µg/L) |
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| Long-term Secchi depth (ft) |
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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:
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Josephine Center (Highlands County)
Florida LAKEWATCH Aquatic Plant Summary
Aquatic plant data collected on August 5, 1996
| Percent area covered with aquatic vegetation (PAC, %) |
17
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| Percent of lake's volume filled with vegetation (PVI, %) |
6
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| Average emergent plant biomass (kg wet wt/m2) |
1.8
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| Average floating-leaved plant biomass (kg wet wt/m2) |
2.2
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| Average submersed plant biomass (kg wet wt/m2) |
0.8
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| Average width of emergent and floating-leaved zone (ft.) |
385
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| Average lake depth (m) |
1
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Frequency that plant species occur in 10 evenly spaced transects around the lake.
| Common Name | Plant Species |
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| water primrose | Ludwigia octovalvis |
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| spatterdock | Nuphar luteum |
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| fragrant water-lily | Nymphaea odorata |
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| pickerelweed | Pontederia cordata |
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| common salvinia | Salvinia rotundifolia |
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| slender spikerush | Eleocharis baldwinii |
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| coontail | Ceratophyllum demersum |
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| wax myrtle | Myrica cerifera |
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| common duckweed | Lemna minor |
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| cat-tail | Typha spp. |
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| maidencane | Panicum hemitomon |
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| para grass | Brachiaria mutica |
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| Baldwin flat sedge | Cyperus globulosus |
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| floating water-hyacinth | Eichhornia crassipes |
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| cone-spur bladderwort | Utricularia gibba |
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| red root | Lachnanthes caroliniana |
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| purple bladderwort | Utricularia purpurea |
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| torpedograss | Panicum repens |
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| water-lettuce | Pistia stratiotes |
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| frog's-bit | Limnobium spongia |
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| water-pennywort | Hydrocotyle umbellata |
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| melaleuca | Melaleuca quinquenervia |
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| southern water-grass | Hydrochloa caroliniensis |
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Josephine Center (Highlands County)
Florida LAKEWATCH Aquatic Plant Summary
Aquatic plant data collected on July 7, 1999
| Percent area covered with aquatic vegetation (PAC, %) |
26
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| Percent of lake's volume filled with vegetation (PVI, %) |
9
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| Average emergent plant biomass (kg wet wt/m2) |
5.1
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| Average floating-leaved plant biomass (kg wet wt/m2) |
3.5
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| Average submersed plant biomass (kg wet wt/m2) |
0.5
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| Average width of emergent and floating-leaved zone (ft.) |
251
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| Average lake depth (m) |
2
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Frequency that plant species occur in 10 evenly spaced transects around the lake.
| Common Name | Plant Species |
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| spatterdock | Nuphar luteum |
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| pickerelweed | Pontederia cordata |
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| water primrose | Ludwigia octovalvis |
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| common salvinia | Salvinia rotundifolia |
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| fragrant water-lily | Nymphaea odorata |
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| wax myrtle | Myrica cerifera |
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| common duckweed | Lemna minor |
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| coontail | Ceratophyllum demersum |
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| para grass | Brachiaria mutica |
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| slender spikerush | Eleocharis baldwinii |
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| cat-tail | Typha spp. |
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| cone-spur bladderwort | Utricularia gibba |
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| water-lettuce | Pistia stratiotes |
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| floating water-hyacinth | Eichhornia crassipes |
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| green algae | Chlorphyta |
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| southern naiad | Najas guadalupensis |
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| frog's-bit | Limnobium spongia |
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| purple bladderwort | Utricularia purpurea |
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| American cupscale | Sacciolepis striata |
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| Baldwin flat sedge | Cyperus globulosus |
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| red maple | Acer rubrum |
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Josephine (Highlands County)
Electrofishing Data
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| Black crappie |
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| Bluefin killifish |
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| Bluegill |
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| Brook silverside |
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| Brown bullhead |
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| Dollar sunfish |
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| Eastern mosquitofish |
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| Florida gar |
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| Golden shiner |
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| Golden topminnow |
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| Lake chubsucker |
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| Largemouth bass |
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| Redear sunfish |
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| Seminole killifish |
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| Warmouth |
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1 Total # of species = 15.
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 Josephine (Highlands County) electrofishing sampling (o). The lines represent liBack to near regressions for logged values of the 60 Florida lakes.