Hydrilla on Lake Norman, news article & information
Lake Norman Marine Commission Announces Additional Stocking of Sterile Grass Carp
Lake Norman, NC (April, 2019) – The Lake Norman Marine Commission (LNMC) is announcing completion of the stocking of sterile grass carp to control the growth of hydrilla on Lake Norman. Sterile grass carp were released from Blythe Landing (6,000), Ramsey Creek Park (5,765) and Beatty’s Ford Landing (565). Total of 12,330 grass carp were released in April to control hydrilla.
Hydrilla is an aggressive invasive non-native aquatic weed that left unchecked can negatively impact a lake or reservoir in just a few years. Dense stands of the plant can lower dissolved oxygen in the water, interfere with boating, swimming, power generation, water intakes, cause extensive sedimentation and lower surrounding property values. Approximately 8,000 acres of hydrilla habitat is available on Lake Norman based on the 20 ft. contour of the lake. A recent comprehensive survey performed by NC State found active hydrilla growth in 640 acres on Lake Norman, primarily in the Ramsey Creek area.
The stocking of sterile grass carp on Lake Norman is a cooperative effort with the NC Department of Environmental Quality (NC Aquatic Weed Program), NC Wildlife Resource Commission, Duke Energy, Charlotte Water and the Lake Norman Marine Commission supporting this program. Sterile grass carp have been used successfully in Lake Norman and many other NC reservoirs to control hydrilla. This stocking of 12,330 grass carp will complement the previous stocking of 10,200 grass carp in May of 2018. These stockings will provide adequate concentration of fish to eliminate the current outbreak of 640 acres and to also prevent the hydrilla from spreading to other areas of the lake. Each year a survey will be conducted in the fall to determine the extent of hydrilla infestation and to help determine future stocking plans. It is anticipated that the current 640 acres of active hydrilla growth will be largely eliminated in the next 2-3 years.
We will give regular updates at scheduled public meetings each month on the status of the hydrilla infestation. The LNMC meets on the second Monday of each month at 7:00 pm at the Charles Mack Center in Mooresville. The public is welcome to attend these meetings to hear updates or provide any comments during the public comment period scheduled during each meeting.
News article about hydrilla on Lake Norman, February 14, 2018 (click link below):
Pamphlet about hydrilla (click on page to enlarge):