Zebra Mussel Monitoring Project (ZMMP)

Lavon Lake

About Lavon Lake

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

Impoundment Year 1953
Drainage Area 770 mi2
Capacity 406,338 acre-ft
Conservation Pool Elevation 492 ft
Counties Collin
Primary Uses Water Supply , Flood Control , Recreation
Additional Resources Texas Parks and Wildlife - Lavon Lake
Water Data for Texas - Lavon Lake
Texas Water Development Board - Lavon Lake
US Army Corps of Engineers - Lavon Lake Levels
Lake Status

Texas Parks and Wildlife Status: Positive

Zebra mussels or veligers (larva) have been detected on more than one occassion.

Lake Map

Blue triangles show USGS data-collection locations.

Zebra Mussel Detection Data

Larvae (Veliger) Detections
Most Recent Detection First Date Detected
06/16/2020 Not Detected 05/22/2014

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
06/16/2020 Not Detected 05/11/2015

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.