approximate actual size of folded card (3½" x 2¼")

Here's what each card says inside....
('generic' version')

 

Zebra Mussel ALERT

The biofouling zebra mussel is a multibillion-dollar threat to surface water supplies for communities, electric power, industry and agriculture throughout North America. This prolific invader deprives native fish and other aquatic life of food and habitat, and is a costly nuisance to boaters and shippers as well.

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YOUR ASSISTANCE IN REPORTING NEW SIGHTINGS OF ZEBRA MUSSELS IS ESSENTIAL TO HELPING STOP THEM FROM INVADING MORE LAKES AND RIVERS!

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How to Identify It

• Zebra mussels look like small clams with a yellowish or brownish "D"-shaped shell, usually with dark- and light-colored stripes (hence the name "zebra").
• They can be up to two inches long, but most are under an inch. Zebra mussels usually grow in clusters containing numerous individuals (see back photo) and are generally found in shallow, algae-rich water.
• Zebra mussels are the ONLY freshwater mollusc that can firmly attach itself to solid objects – submerged rocks, water intake pipes, dock pilings, boat hulls, etc.

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What to Do

• Note the date and precise locations where the mussel or its shell(s) were found;
• Take the mussel with you (several, if possible) and store in rubbing alcohol (in any case, DON’T throw it back in the water); and
• IMMEDIATELY contact your local Sea Grant program or natural resources management agency.

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STOP AQUATIC HITCHHIKERS! CLEAN AND DRY YOUR BOAT AND ALL RECREATIONAL EQUIPMENT BEFORE TRANSPORTING THEM TO NEW WATERS.

A public service of the University of Wisconsin Sea Grant Program

 

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