http://www.dnr.sc.gov/invasiveweeds/draftplan.html is anyone else having issues viewing the 2018 plan?
link fixed
http://www.dnr.sc.gov/invasiveweeds/draftplan.html is anyone else having issues viewing the 2018 plan?
link fixed
Last edited by swampshooter; 04-02-2018 at 12:50 AM.
Linky no work
I never used to be a conspiracy theorist......I'm leaning that way more and more every day. SCDNR aquatic management plan links are "404 File Not Found"
Listen to your elders. Not because they are always right but because they have more experiences of being wrong.
"We make a living by what we get, we make a life by what we give" Sir Winston Churchill
Work for me... Here are the .pdf links
http://www.dnr.sc.gov/invasiveweeds/...aftpartone.pdf
http://www.dnr.sc.gov/invasiveweeds/...aftparttwo.pdf
. Lake Murray
(Lexington, Newberry, Richland and Saluda Counties)
Problem plant species
Hydrilla, Water Primrose
Management objectives
37 SOUTH CAROLINA AQUATIC PLANT MANAGEMENT PLAN
Minimize hydrilla growth throughout the lake to prevent its spread within the lake, help prevent
its spread to adjacent public waters, and avoid adverse impacts to drinking water withdrawals
and public use and access.
Monitor water primrose growth and consider control options if impacts are greater than
anticipated.
Maintain diverse aquatic plant community through selective application of control methods and
introduction of desirable native plant species.
Selected control method
Triploid grass carp – stock 3000 triploid grass carp to rebalance the population after significant
losses due to opening of the Flood Gates in 2015
Aquatic herbicides - selected areas of water primrose infestation to provide public access.
Problem Species Control Agents
Hydrilla Chelated copper (Nautique)
Water primrose Renovate 3, Habitat, Clearcast
Area to which control is to be applied
Release approximately one-half of the triploid grass carp on the north side of the lake and onehalf
on the south side.
Use aquatic herbicides to provide control at high priority public access points, such as boat
ramps and park sites.
Rate of control agent to be applied
Triploid Grass Carp: Stock 3000 sterile grass carp, 1500 in the spring and 1500 in the fall, to
rebalance the population. (Continue maintenance stocking in future years with 1710 sterile
grass carp per year to maintain a density of 1 grass carp per 6 surface acres (8333 fish). Continue
maintenance stocking in 2018 based on conditions. Stock to maintain 1 to 6 surface acres
density when population dictates and to add different age class fish. 3000 sterile grass carp to
maintain a density of 1 grass carp per 6 surface acres (8333 fish). The Aquatic Plant
Management Council is committed to maintenance stocking of triploid grass carp in Lake
Murray to provide long-term control of hydrilla. The Aquatic Plant Management Council, with
recommendations from DNR and Lake Murray staff, agrees that the adaptive stocking plan
should be continued, based on current observations of collected data, Herbicide treatments
may be utilized to provide temporary control of hydrilla when necessary. Changes to the
strategy will be implemented if survey results, regrowth, or habitat loss warrant.
Water primrose treatment:
Renovate 3 - 0.500 to 0.750 gallons per acre.
Habitat - 2 to 4 pints per acre.
Clearcast - 1 to 4 pints per acre.
Method of application of control agent
Triploid grass carp - See section 3 above.
All agents to be applied when plants are actively growing.
Timing and sequence of control application
38 SOUTH CAROLINA AQUATIC PLANT MANAGEMENT PLAN
Additional grass carp should be stocked in the spring/fall following Council approval.
Apply herbicides to aquatic vegetation as it becomes problematic.
Other control application specifications
If needed, all sterile grass carp will be a minimum of 12 inches in length. All sterile grass carp
shipments for Lake Murray will be examined by the SCDNR for sterility, size, and condition at the
Campbell Fish Hatchery in Columbia prior to stocking in the lake.
Control by Residential/Commercial Interests:
This plan is designed to provide relief from noxious aquatic vegetation for the public at large.
Private entities such as lake-front residents and commercial interests may have site specific
concerns not addressed immediately using grass carp or mechanical harvesters at public access
areas. Residential and commercial interests may remove nuisance aquatic vegetation manually
or by use of mechanical harvesting devices. Of the three-major control methods the following
conditions apply.
1) Mechanical harvesters – Commercial aquatic plant harvesting services may be hired to
remove hydrilla and Illinois pondweed from areas adjacent to residential and commercial
property after notification of SCE&G. Harvesting precautions as stated in item above must be
adhered to.
2) Aquatic herbicides – SCE&G opposes regular or general application of herbicides in Lake
Murray, therefore, aquatic herbicides may not be applied in the lake by lake front property
owners. Label rate of herbicide will be stringently adhered to.
3) Sterile grass carp - A sufficient number of grass carp have been stocked by SCDNR to control
nuisance aquatic vegetation. Stocking additional grass carp in Lake Murray without written
consent by the SCDNR is prohibited.
Entity to apply control agent
Triploid grass carp - Commercial supplier with supervision by the SCDNR.
Aquatic herbicides - Commercial applicator under supervision by the SCDNR.
Estimated cost of control operations
Triploid grass carp - $28,000
Aquatic herbicides - $0
Potential sources of funding
Triploid grass carp.
S.C. Electric and Gas Company, Lexington and Richland Counties 50%
S.C. Department of Natural Resources 50% (up to $30,000 cost share per waterbody)
Mechanical harvester, S.C. Electric and Gas Company, Commercial marina operators, and
residential property owners.
Aquatic herbicides
S.C. Electric and Gas Company, Lexington and Richland Counties 50%
S.C. Department of Natural Resources 50% (up to $30,000 cost share per waterbody)
(Percentage of match subject to change based on availability of Federal and State funding.)
39 SOUTH CAROLINA AQUATIC PLANT MANAGEMENT PLAN
Long term management strategy
a) Manage the distribution and abundance of nuisance aquatic plant populations at
levels that minimize adverse impacts to water use activities and the environment
through the use of federal and state approved control methods.
b) Maintain or enhance native aquatic plant populations at levels beneficial to water
use, water quality, and fish and wildlife populations through selective control of
nuisance plant populations where feasible, introduction of native plant species
where appropriate, and public education of the benefits of aquatic vegetation in
general.
c) Seek to prevent further introduction and distribution of problem species through
public education, posting signs at boat ramps, regular surveys of the water body,
and enforcement of existing laws and regulations.
d) Improve public awareness and understanding of aquatic plant management
activities through the maintenance of the Lake Murray Aquatic Plant Management
web site. The web site includes up-to-date information on annual management
plans, dates and locations of current and historical control operations, locations of
habitat enhancement activities, and other pertinent information.
e) Periodically revise the management strategy and specific control sites as new
environmental data and control agents and techniques become available and public
use patterns change.
Lake Murray has 50,000 surface acres with an estimated area of vegetation coverage of 50 acres. Do the math on this horrible infestation of nuisance aquatic vegetation. .001 % the carp will starve.......unless they eat all of our native vegetation.
Listen to your elders. Not because they are always right but because they have more experiences of being wrong.
"We make a living by what we get, we make a life by what we give" Sir Winston Churchill
At one time there was a hydrilla problem at Murray, but that has been a while now. I don't remember the last time I've seen hydrilla on the lake, not to mention much in the way of native vegetation. They need to cool off some on the carp and find a happy medium IMHO.
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