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Invasive Crayfish Being Used as Bait

The Michigan Department of Natural Resources (DNR) has recently discovered that anglers are purchasing red swamp crayfish from food markets and using them as live bait. It is illegal to import any live species of crayfish into Michigan for commercial bait purposes. Red swamp crayfish are native to the southeastern United States and are considered an invasive species in Michigan.

Red swamp crayfish are dark red in color with raised, bright red spots covering the body and claws. They also have a black, wedge-shaped stripe on the top of the abdomen. They may vary in length between 2 to 5 inches. This species of crayfish is highly invasive, eats a range of food items and adapts to many habitat types. Red swamp crayfish can survive drought conditions and are known to migrate up to three kilometers in search of habitat. They are very fertile, with females laying up to 600 eggs at a time and reproducing up two times in a year.

 
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What Role Can Oysters Play to Help Improve Water Quality? - With the experimental introduction of oysters, which can filter 50 gallons of water daily, residents hope they will improve water clarity and reduce the intensity and prevalence of harmful algal blooms on Georgica Pond.


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