Starry stonewort was first discovered in Minnesota waters in Lake Koronis in 2015. It’s now found in 19 Minnesota waterbodies. Lake Koronis is helping researchers understand how a changing climate may influence this invasive and how we can better manage it. Overall, the research showed year-to-year variability in the total biomass of starry stonewort. There
If you drove past Elk Lake in Hoffman, Minnesota this past summer, you may have seen an unusual sight: A mechanical harvester out on the water cutting and removing aquatic vegetation. This is the first time the city has hired a mechanical harvester, but they were dealing with a bumper crop of lakes weeds. A
In the last few decades, the lake’s weedy, northern-most portion has clogged hulls and deterred boaters from entering the lake from the Oswegatchie River. Patches of weeds greet the water’s surface near every dock, and nearly invisible from a distance on a windy day, matted greenery creates a basin of weeds seven-feet-deep in some spots.
The Massachusetts’s Department of Conservation and Recreation is aiming to reduce invasive plant species in Lake Whitehall in a plan that calls for herbicides and mechanical harvesting. The reservoir has extensive growth of “exotic nuisance aquatic vegetation,” including fanwort and variable-leaf milfoil, according to a report by ESS Group, a firmed hired by the state.
The Iowa Great Lakes are seeing an increase in aquatic plants this season. Mike Hawkins, a Fisheries Biologist with the Iowa Department of Natural Resources, says those include native aquatic plant species such as coontail, sago pondweed and wild water celery, to name a few, which are extremely beneficial to a lake’s ecosystem. While it
According to Nick Brown, DNR invasive species specialist, herbicides used to treat curly-leaf pondweed on Minnesota lakes may not lead to improvements in water quality. Curly-leaf pondweed is an invasive plant found throughout much of Minnesota. The plant grows slowly throughout the winter under the ice, but once the ice has left the lake the
Pewaukee Lake was formed in 1838 when a dam was constructed along the Pewaukee River and the wetland was flooded. It combined with Snake Lake to form the 2,500 acre Pewaukee Lake. For 40 years – 1945 to 1985 – the sanitary district used herbicides, including 2-4-D for 17 years, in an attempt to control
It is exhausting reading about lake after lake after lake becoming infested with an over abundance of aquatic vegetation. This plant material not only negatively affects water quality, the health of the fishery, recreation, aesthetics, but it is financially devastating as well. It affects tourism; bait shops, marinas, hotels, restaurants. It affects lake property owners;
Unlike using chemicals, or doing nothing at all, the advantages of harvesting include: – Immediate relief from nuisance plants that interfere with navigation and recreation – Immediate use of the water for swimming or irrigation – There is nothing foreign introduced to the environment when using mechanical control – Biomass is removed from the water