Zebra Mussel Monitoring Project (ZMMP)

Lake Fork Reservoir

About Lake Fork Reservoir

Sources for characteristics are linked from the characteristic's value. Conservation pool elevation datum is NGVD29.

Impoundment Year 1980
Drainage Area 490 mi2
Capacity 605,061 acre-ft
Conservation Pool Elevation 403 ft
Counties Hopkins, Rains, Wood
Primary Uses Water Supply , Recreation
Additional Resources Texas Parks and Wildlife - Lake Fork Reservoir
Water Data for Texas - Lake Fork Reservoir
Texas Water Development Board - Lake Fork Reservoir
Lake Status

No Texas Parks and Wildlife Status.

Lake Map

Blue triangles show USGS data-collection locations.

Zebra Mussel Detection Data

Larvae (Veliger) Detections
Most Recent Detection First Date Detected
05/21/2020 Not Detected 11/09/2015

Larvae detection counts are averaged across all sampling sites.

Zebra mussels typically spawn in the spring and autumn as microscopic, free swimming larvae called 'veligers'. The USGS uses fine mesh nets to sample for larvae during the spawning season.

Adult or Juvenile Detections
Most Recent Detection First Date Detected
12/12/2019 Not Detected 08/14/2019

Adult detection counts are averaged across all sampling sites.

At the end of their larval stage, zebra mussels attach to a substrate and metamorphose into juveniles. The USGS conducts both visual and SCUBA inspections, and deploys artificial substrates as passive samplers, to get a estimate of the juvenile and adult zebra mussel populations.

Water Quality Data

Water-quality monitoring is important for studies of zebra mussel survival, growth, and reproduction. Water-quality data are also important for risk assessments for zebra mussel infestation.

Water-Quality Graphs

Select a parameter to view graphs of data collected at all Lake Fork Reservoir sites.