Bryant (Marion County)

Bryant (Marion County)

Florida LAKEWATCH Water Chemistry Summary

Location: Latitude 29°8'41", Longitude 81°51'17"

Period of record: 72 sampling dates; March 22, 1992 to May 23, 1998

Surface area (Shafer et al. 1986): 767 acres / 310 hectacres

Lake Region (Griffith et al. 1997): Central Valley

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 Lynne Karst division of the Central Lake District.

Supplemental, unpublished water chemistry data, University of Florida.

Numbers reported below are the average for 1 month sampled:

Long-term Florida LAKEWATCH Data

Numbers reported below are the minimum, average, and maximum value for the 72 months sampled:

	Minimum	Average	Maximum
Long-term total phosphorus concentrations (µg/L)	13	25	61
Long-term total nitrogen concentrations (µg/L)	620	1200	2170
Long-term total chlorophyll concentrations (µg/L)	5.3	25.6	71.0
Long-term Secchi depth (ft)	1.5	3.4	7.0

Florida LAKEWATCH data were not collected in 1999.

Bryant (Marion County)

Florida LAKEWATCH Aquatic Plant Summary

Aquatic plant data collected on August 5, 1993

Percent area covered with aquatic vegetation (PAC, %)	10
Percent of lake's volume filled with vegetation (PVI, %)	1
Average emergent plant biomass (kg wet wt/m2)	2.3
Average floating-leaved plant biomass (kg wet wt/m2)	0.9
Average submersed plant biomass (kg wet wt/m2)	0.0
Average width of emergent and floating-leaved zone (ft.)	28
Average lake depth (m)	2

Frequency that plant species occur in 10 evenly spaced transects around the lake.

Common Name	Plant Species	Frequency (%)
maidencane	Panicum hemitomon	100
spatterdock	Nuphar luteum	90
willow	Salix spp.	90
wax myrtle	Myrica cerifera	80
sawgrass	Cladium jamaicense	80
duck-potato	Sagittaria lancifolia	60
water primrose	Ludwigia octovalvis	60
salt-bush	Baccharis spp.	40
buttonbush	Cephalanthus occidentalis	40
rush fuirena	Fuirena scirpoidea	40
elderberry	Sambucus canadensis	40
pickerelweed	Pontederia cordata	30
slender spikerush	Eleocharis baldwinii	20
smartweed	Polygonum hydropiperoides	20
yellow-eyed grass	Xyris spp.	20
common salvinia	Salvinia rotundifolia	10
common arrowhead	Sagittaria latifolia	10
alligator-weed	Alternanthera philoxeroides	10
banana-lily	Nymphoides aquatica	10
red ludwigia	Ludwigia repens	10
cat-tail	Typha spp.	10
water-pennywort	Hydrocotyle umbellata	10
flat-sedge	Cyperus odoratus	10
barnyard grass	Echinochloa crusgalli	10
southern cutgrass	Leersia hexandra	10
knot grass	Paspalum distichum	10

Bryant (Marion County)

Florida LAKEWATCH Aquatic Plant Summary

Aquatic plant data collected on July 19, 1994

Percent area covered with aquatic vegetation (PAC, %)	14
Percent of lake's volume filled with vegetation (PVI, %)	1
Average emergent plant biomass (kg wet wt/m2)	0.7
Average floating-leaved plant biomass (kg wet wt/m2)	0.6
Average submersed plant biomass (kg wet wt/m2)	0.0
Average width of emergent and floating-leaved zone (ft.)	46
Average lake depth (m)	3

Frequency that plant species occur in 10 evenly spaced transects around the lake.

Common Name	Plant Species	Frequency (%)
maidencane	Panicum hemitomon	100
spatterdock	Nuphar luteum	70
wax myrtle	Myrica cerifera	70
sawgrass	Cladium jamaicense	70
duck-potato	Sagittaria lancifolia	60
pickerelweed	Pontederia cordata	60
water primrose	Ludwigia octovalvis	60
water-pennywort	Hydrocotyle umbellata	50
rush fuirena	Fuirena scirpoidea	50
red ludwigia	Ludwigia repens	40
salt-bush	Baccharis spp.	40
willow	Salix spp.	40
elderberry	Sambucus canadensis	40
slender spikerush	Eleocharis baldwinii	30
banana-lily	Nymphoides aquatica	20
alligator-weed	Alternanthera philoxeroides	10
smartweed	Polygonum hydropiperoides	10
musk-grass	Chara spp.	10
jointed flat sedge	Cyperus haspan	10