Floyd (Pasco County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°11'5", Longitude 82°27'44"
Period of record: 33 sampling dates; October 28, 1990 to August 30, 1994
Surface area : No data available.
Lake Region (Griffith et al. 1997): Land-O-Lakes
Geologic formation (Brooks 1981):
The geology is dominated by argillaceous to sandy impure limestone of the Tampa Formation.
Physiographic region (Brooks 1981):
The water body lies in the Land-O-Lakes subdivision of the Tampa Plain division of the Ocala Uplift District.
Supplemental, unpublished water chemistry data, University of Florida.
Numbers reported below are the average for 2 months sampled:
|
pH |
6.9 |
Sulfate (mg/L) |
7.0 |
|
Total alkalinity (mg/L as CaCO3) |
29.5 |
Calcium (mg/L) |
10.2 |
|
Conductance (µS/cm @ 25 °C) |
158 |
Magnesium (mg/L) |
2.5 |
|
Color (Pt-Co units) |
26 |
Sodium (mg/L) |
15.8 |
|
Chloride (mg/L) |
26.2 |
Potassium (mg/L) |
2.5 |
|
Silicon (mg/L) |
0.2 |
|
|
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) |
8 |
13 |
43 |
|
Long-term total nitrogen concentrations (µg/L) |
650 |
860 |
1930 |
|
Long-term total chlorophyll concentrations (µg/L) |
1.5 |
4.0 |
17.5 |
|
Long-term Secchi depth (ft) |
5.5 |
7.6 |
11.5 |
Florida LAKEWATCH data were not collected in 1999.
Floyd (Pasco County)
Florida LAKEWATCH Aquatic Plant Summary
Aquatic plant data collected on May 26, 1992
|
Percent area covered with aquatic vegetation (PAC, %) |
60 |
|
Percent of lake's volume filled with vegetation (PVI, %) |
33 |
|
Average emergent plant biomass (kg wet wt/m2) |
2.7 |
|
Average floating-leaved plant biomass (kg wet wt/m2) |
2.2 |
|
Average submersed plant biomass (kg wet wt/m2) |
4.5 |
|
Average width of emergent and floating-leaved zone (ft.) |
124 |
|
Average lake depth (m) |
1 |
Frequency that plant species occur in 10 evenly spaced transects around the lake.
|
Common Name |
Plant Species |
Frequency (%) |
|
slender spikerush |
Eleocharis baldwinii |
90 |
|
fragrant water-lily |
Nymphaea odorata |
90 |
|
pickerelweed |
Pontederia cordata |
90 |
|
Florida bladderwort |
Utricularia floridana |
80 |
|
bladderwort |
Utricularia foliosa |
80 |
|
musk-grass |
Chara spp. |
70 |
|
rush fuirena |
Fuirena scirpoidea |
70 |
|
cat-tail |
Typha spp. |
60 |
|
purple bladderwort |
Utricularia purpurea |
60 |
|
spatterdock |
Nuphar luteum |
50 |
|
buttonbush |
Cephalanthus occidentalis |
40 |
|
water primrose |
Ludwigia octovalvis |
30 |
|
maidencane |
Panicum hemitomon |
30 |
|
banana-lily |
Nymphoides aquatica |
20 |
|
southern cutgrass |
Leersia hexandra |
20 |
|
common salvinia |
Salvinia rotundifolia |
10 |
|
duck-potato |
Sagittaria lancifolia |
10 |
|
bacopa |
Bacopa monnieri |
10 |
|
. |
Cyperus elegans |
10 |