Mirror (Polk County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°2'13", Longitude 81°44'26"
Period of record: 13 sampling dates; August 11, 1991 to August 16, 1992
Surface area (Shafer et al. 1986): 123 acres / 50 hectacres
Lake Region (Griffith et al. 1997): Winter Haven/Lake Henry Ridges
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 Winter Haven Karst division of the Central Lake District.
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 13 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
20 |
34 |
45 |
|
Long-term total nitrogen concentrations (µg/L) |
960 |
1300 |
1600 |
|
Long-term total chlorophyll concentrations (µg/L) |
25.0 |
39.4 |
65.3 |
|
Long-term Secchi depth (ft) |
1.7 |
2.6 |
3.5 |
Florida LAKEWATCH data were not collected in 1999.
Mirror (Polk County)
Florida LAKEWATCH Aquatic Plant Summary
Aquatic plant data collected on August 12, 1992
|
Percent area covered with aquatic vegetation (PAC, %) |
0 |
|
Percent of lake's volume filled with vegetation (PVI, %) |
0 |
|
Average emergent plant biomass (kg wet wt/m2) |
6.4 |
|
Average floating-leaved plant biomass (kg wet wt/m2) |
0.7 |
|
Average submersed plant biomass (kg wet wt/m2) |
5.4 |
|
Average width of emergent and floating-leaved zone (ft.) |
50 |
|
Average lake depth (m) |
4 |
Frequency that plant species occur in 10 evenly spaced transects around the lake.
|
Common Name |
Plant Species |
Frequency (%) |
|
tapegrass |
Vallisneria americana |
70 |
|
cat-tail |
Typha spp. |
60 |
|
duck-potato |
Sagittaria lancifolia |
50 |
|
willow |
Salix spp. |
50 |
|
maidencane |
Panicum hemitomon |
40 |
|
torpedograss |
Panicum repens |
40 |
|
elephant-ear |
Colocasia esculenta |
30 |
|
spatterdock |
Nuphar luteum |
20 |
|
sawgrass |
Cladium jamaicense |
20 |
|
pickerelweed |
Pontederia cordata |
10 |
|
water-pennywort |
Hydrocotyle umbellata |
10 |
|
melaleuca |
Melaleuca quinquenervia |
10 |
|
water primrose |
Ludwigia octovalvis |
10 |
|
rush fuirena |
Fuirena scirpoidea |
10 |
|
knot grass |
Paspalum distichum |
10 |
|
bald cypress |
Taxodium distichum |
10 |
Mirror (Polk County)
Florida LAKEWATCH Aquatic Plant Summary
Aquatic plant data collected on August 17, 1994
|
Percent area covered with aquatic vegetation (PAC, %) |
26 |
|
Percent of lake's volume filled with vegetation (PVI, %) |
9 |
|
Average emergent plant biomass (kg wet wt/m2) |
6.8 |
|
Average floating-leaved plant biomass (kg wet wt/m2) |
1.3 |
|
Average submersed plant biomass (kg wet wt/m2) |
8.8 |
|
Average width of emergent and floating-leaved zone (ft.) |
44 |
|
Average lake depth (m) |
3 |
Frequency that plant species occur in 10 evenly spaced transects around the lake.
|
Common Name |
Plant Species |
Frequency (%) |
|
tapegrass |
Vallisneria americana |
70 |
|
duck-potato |
Sagittaria lancifolia |
60 |
|
cat-tail |
Typha spp. |
60 |
|
water primrose |
Ludwigia octovalvis |
60 |
|
torpedograss |
Panicum repens |
50 |
|
wax myrtle |
Myrica cerifera |
40 |
|
knot grass |
Paspalum distichum |
40 |
|
spatterdock |
Nuphar luteum |
30 |
|
pickerelweed |
Pontederia cordata |
20 |
|
willow |
Salix spp. |
20 |
|
sawgrass |
Cladium jamaicense |
20 |
|
maidencane |
Panicum hemitomon |
20 |
|
fragrant water-lily |
Nymphaea odorata |
10 |
|
water-pennywort |
Hydrocotyle umbellata |
10 |
|
coontail |
Ceratophyllum demersum |
10 |
|
melaleuca |
Melaleuca quinquenervia |
10 |
|
rush fuirena |
Fuirena scirpoidea |
10 |