Tag Archives: invasive mussels

Team creates device to help find, fight mussels

Zebra Mussel Shells Cover a Lake Michigan Limestone Beach in Door County Wisconsin - PJ Bruno
Zebra Mussel Shells Cover a Lake Michigan Limestone Beach in Door County Wisconsin – PJ Bruno

The Daily Inter Lake has an interesting article on a device invented to provide fast, sensitive and mobile detection of invasive mussels . . .

The pristine waters of Flathead Lake that have supported local residents’ way of life for centuries are being threatened by invasive species that have devastated lakes and waterways across the country.

The arrival of the first documented zebra and quagga mussels in Montana could mark the beginning of the end for the crown of the continent’s signature landscape, according to experts at the Flathead Lake Biological Station (FLBS).

These invasive species have infested lakes in almost every state in the U.S., corrupting indigenous ecosystems, clogging drainage and irrigation systems and crashing the economical and recreational value of beaches and harbors.

Read more . . .

Glacier to lift restrictions on hand-propelled boats with invasive species inspections this season

Zebra mussels
Zebra mussels – via Wikipedia

Glacier Park has decided to allow small, hand-propelled watercraft on their lakes this season, as long as they are inspected for invasive mussels. Anything with a motor or big enough to require a trailer, is prohibited while the park further evaluates the danger posed by invasive mussel species.

Possibly in response to some points raised at last month’s Interlocal Meeting, “local users who live in more remote locations” (i.e., North Forkers) can get their equipment inspected at the “nearest ranger station.”

Here is the full press release, including a useful Q&A section. It’s followed by a link to a good summary article in the Hungry Horse News . . .

Date: March 16, 2017
Contact: Office of the Superintendent, 406-888-7901

WEST GLACIER, MT. – Glacier National Park announced today that hand-propelled, non-trailered watercraft including kayaks, canoes, and paddleboards will be permitted in the park with mandatory inspection beginning May 15 for Lake McDonald and the North Fork and June 1, 2017 for all remaining areas of the park. Last November, park waters were closed to all boating as a precaution after invasive species of non-native mussels were detected in two popular Montana reservoirs east of the park.

Hand-powered boat users will be required to have their craft certified mussel-free (“clean, drained, and dry”) by Glacier staff under a new inspection program with stations in four popular locations in the park. (Local users who live in more remote locations will be directed to the nearest ranger station for inspection.) This is a change from last season, when hand-propelled watercraft required visitors to complete an AIS-free self-certification form before launching into Glacier’s lakes.

Privately owned motorized and trailered watercraft brought into the park will not be allowed to operate on Glacier’s waters this summer while a comprehensive assessment of the threat from mussels is underway. Among other measures, this will include comprehensive testing of waters in the park and elsewhere in Montana for the presence of quagga and zebra mussels. These non-native mollusks reproduce quickly and can wreak havoc with lake environments, water quality, native wildlife, lake infrastructure, and cause significant economic harm to infested regions.

Continue reading Glacier to lift restrictions on hand-propelled boats with invasive species inspections this season

Columbia River watershed is last refuge from invasive mussels

Zebra Mussel Shells Cover a Lake Michigan Limestone Beach in Door County Wisconsin - PJ Bruno
Zebra Mussel Shells Cover a Lake Michigan Limestone Beach in Door County Wisconsin – PJ Bruno

Here’s a scary wake-up call regarding invasive mussels . . .

They don’t look like much, but it’s hard to overstate the threat posed by aquatic invasive species like zebra and quagga mussels to Montana’s public waterways – and all the waterways downstream in other states. “It’s terrifying,” explained Heidi Sedivy, the program manager for the Flathead Basin Protection Fund.

During an informational talk at the nonprofit Clark Fork Coalition Wednesday, Sedivy said the Columbia River watershed is the last watershed in the lower 48 states that is currently free from nonnative zebra and quagga mussels, which originated in Eastern Europe.

Western Montana represents the headwaters of the Columbia watershed, and alarm bells all over the state were raised when mussels were detected in the Tiber Reservoir in north-central Montana late last year – meaning the entire Missouri River watershed is essentially doomed.

Read more . . .