Tallavana (Gadsden County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 30°35'59", Longitude 84°27'53"
Period of record: 94 sampling dates; December 15, 1991 to November 14, 1999
Surface area (Shafer et al. 1986): 160 acres / 65 hectacres
Lake Region (Griffith et al. 1997): Tifton/Tallahassee Uplands
Geologic formation (Brooks 1981):
The geology is dominated by clayey sand and clay with sandy to clayey limestone of the Hawthorne Formation.
Physiographic region (Brooks 1981):
The water body lies in the Quincy Hills division of the Tifton Uplands District.
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 94 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
29 |
69 |
185 |
|
Long-term total nitrogen concentrations (µg/L) |
400 |
720 |
1190 |
|
Long-term total chlorophyll concentrations (µg/L) |
5.3 |
42.0 |
121.0 |
|
Long-term Secchi depth (ft) |
1.3 |
2.9 |
6.5 |
1999 Florida LAKEWATCH Data
Numbers reported below are monthly averages calculated from 5 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 |
|
Feb-20-99 |
91 |
810 |
92.2 |
. |
|
Mar-20-99 |
83 |
650 |
66.0 |
2.8 |
|
Apr-24-99 |
107 |
750 |
50.5 |
2.0 |
|
May-22-99 |
91 |
700 |
34.2 |
3.1 |
|
Jun-13-99 |
90 |
640 |
35.8 |
3.4 |
|
Jul-17-99 |
171 |
900 |
121.0 |
2.5 |
|
Aug-28-99 |
119 |
1190 |
96.8 |
2.0 |
|
Sep-18-99 |
140 |
1050 |
69.6 |
2.6 |
|
Oct-31-99 |
88 |
810 |
30.8 |
2.6 |
|
Nov-14-99 |
87 |
730 |
35.2 |
3.0 |
|
|
|
|
|
|
|
1999 Average |
107 |
820 |
63.2 |
2.7 |
Tallavana (Gadsden County)
Florida LAKEWATCH Aquatic Plant Summary
Aquatic plant data collected on July 28, 1992
|
Percent area covered with aquatic vegetation (PAC, %) |
36 |
|
Percent of lake's volume filled with vegetation (PVI, %) |
12 |
|
Average emergent plant biomass (kg wet wt/m2) |
6.9 |
|
Average floating-leaved plant biomass (kg wet wt/m2) |
0.0 |
|
Average submersed plant biomass (kg wet wt/m2) |
2.9 |
|
Average width of emergent and floating-leaved zone (ft.) |
15 |
|
Average lake depth (m) |
2 |
Frequency that plant species occur in 10 evenly spaced transects around the lake.
|
Common Name |
Plant Species |
Frequency (%) |
|
slender naiad |
Najas minor |
90 |
|
para grass |
Brachiaria mutica |
90 |
|
soft rush |
Juncus effusus |
90 |
|
musk-grass |
Chara spp. |
90 |
|
buttonbush |
Cephalanthus occidentalis |
80 |
|
alligator-weed |
Alternanthera philoxeroides |
70 |
|
southern water-grass |
Hydrochloa caroliniensis |
60 |
|
giant duckweed |
Spirodela polyrhiza |
40 |
|
smartweed |
Polygonum hydropiperoides |
40 |
|
cat-tail |
Typha spp. |
40 |
|
floating water-hyacinth |
Eichhornia crassipes |
30 |
|
elephant-ear |
Colocasia esculenta |
30 |
|
variable-leaf milfoil |
Myriophyllum heterophyllum |
10 |
|
water primrose |
Ludwigia octovalvis |
10 |
|
willow |
Salix spp. |
10 |
|
giant bulrush |
Scirpus californicus |
10 |
|
rush spp. |
Juncus dichotomus |
10 |