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May 28, 2021 · In a report prepared by the Montana Department of Natural Resources, a quagga and zebra mussel worst-case scenario invasion would cost Montana an estimated $234 million per year in damages to the Montana economy. Recreation, a big driving wheel to the state and local economy, would be negatively impacted by an estimated $122 million per year.
- Mussel Map Viewer
- Mussel Protocol Data Availability
- Freshwater Mussel Information
The Mussel Map Viewer is an interactive tool to allow users to explore listed native mussels across the Michigan landscape. Watershed level species lists are available alongside the Mussel Protocol Stream Groups. The Mussel Protocol Stream Groups are designed to document the potentialpresence or absence of state or federally listed mussel species. ...
This data is available as an ESRI geodatabase packaged in zip file format and can be obtained at no cost with the signing of a data use agreement. Data can be requested by emailing mnfi@msu.edu For protocol details, see the following documents: 1. Michigan Freshwater Mussel Survey Protocols and Relocation Procedures for Rivers and Streams(PDF) 2. M...
Freshwater Mussels of Michigan posters can be ordered for $3.00 on the MNFI online store or viewed as a PDF. For more information on mussels and the role they play in our environment, download the Freshwater Mussels of Michigan brochure available in letter format, or as a foldable brochure. 1. Freshwater Mussels of Michigan brochure in letter forma...
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and caddisflies than any other country. There are nearly 300 species of freshwater mussels (Unionidae) in eastern North America, with 43 species occurring in Michigan. Figure 1: Pea clams Figure 2: Asian clam Figure 3: Zebra mussels Figure 5 Figure 6 Figure 4: Quagga mussels How do mussels reproduce? male sperm attach to gill filament of attach ...
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Management of aquatic plants was estimated to cost $5 million from 1985 to 2001 at Lake George, NY (Boylen et al. 2001). Expanded aquatic plant coverage, as a result of increased water clarity, can have negative economic impacts. Aquatic plant biomass can have a negative impact on lakefront property values.
survey and relocation work may be necessary. If listed mussels have been reported previously from the project location, coordination with USFWS and/or MDNR, will be required (Figure 1). Table 1.-List of freshwater mussels in Michigan and their current conservation status. Species* Common Name Michigan Status U.S. Status Actinonaias ligamentina
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Beginning Jan. 1, 2025, the DNR’s Fisheries Division will only issue Scientific Collectors Permits to contactors who are certified in Michigan freshwater mussel identification. To be “certified” means the person has successfully passed the Michigan Freshwater Mussel Identification Test. “Contractors” are defined as an individual or ...
Sep 9, 2022 · Nearly 300 species of unionid mussels can be found in eastern North America, and about 45 in Michigan. However, of those in Michigan, 32 are considered at risk – classified as endangered, threatened, or special concern. Some of the threats to our native mussels are probably easy to guess – dams, erosion, channelization, and stormwater ...
