Updated:
Original:

Zebra mussels found in 2 more Minnesota lakes

Author:

The Department of Natural Resources is reminding boaters to take precautions against zebra mussels and other invasive species.

This comes after the Minnesota DNR confirmed the presence of tiny, invasive zebra mussels in two more lakes, a news release says.

On July 9, DNR staff found one live zebra mussel in East Spirit Lake, located in northwestern Minnesota, after someone brought a quarter-inch zebra mussel into the local DNR office.

Then on July 20, the DNR found two three-quarter inch adult zebra mussels in Lake Osakis, in central Minnesota. Staff conducted the search there after getting a report of zebra mussel larvae in the lake.

The DNR will post invasive species alert signs at access points on the two lakes, and will also work to determine if waterways connected to the two lakes should be added to the agency's infested waters list.

As of November 2015, there were 112 lakes infested with zebra mussels, which accounts for less than 2 percent of all Minnesota lakes, the DNR's website says. (For an updated list of infested waterways, click here, or check out this map here.)

Zebra mussels are bad news for cities, power plants and those who use the water. The invasive species can clog water intakes and pipes; attach to boat motors, reducing their performance and efficiency; attach to rocks, swim rafts and ladders, where swimmers can cut their feet; and impact the health of the lake or waterway where they live.

In order to protect the rest of the state's waterways, Minnesota law requires boaters to clean their watercraft of aquatic plants and prohibited invasive species; drain all water by removing drain plugs and keeping them out during transport; and dispose of unwanted bait in the trash.

A new fight against zebra mussels

Meanwhile, there's a new tactic in the battle against zebra mussels in Lake Minnetonka.

Researchers are hoping to decrease the zebra mussel population by killing them off when they're larvae using a copper-based pesticide, Lakeshore Weekly News reported.

The study began last week. Researchers will see what impact different concentrations of the pesticide have on the larvae's survival.

The Star Tribune said this is a first-of-its-kind study in Minnesota, and nationally.

To read more about the study, and other efforts to combat zebra mussels, click here and here.

Next Up

Lakeville South

May bomb threat at south metro school traced to Lakeville area kid

Months of investigation led to the digital footprint of the juvenile.

WIkimedia Commons - Frey April 20, 2021

Frey backs creation of Dept. of Public Safety, removal of police staffing minimums

He is in favor of removing police staffing minimums from the city charter – which this November's ballot question would also do.

Foreman tl - Flug-Presley tr - Sturm bl - Pettus br - Go Fund Me and Facebook

St. Paul PD takes over quadruple killing probe after it emerged they died in Minnesota

A "thorough investigation" reveled where the four Minnesotans were killed.

superior national forest

Highway 1 reopens as Greenwood Fire is 80% contained

The highway has been closed for about a month.

covid, vaccine

Minnesota's COVID-19 update for Monday, September 20

Data in Monday reports includes the past Friday, not the weekend. Weekend data is released on Tuesdays.

ATV

Driver killed in ATV rollover crash north of Alexandria

The crash occurred in Douglas County Sunday evening.

Related