Phragmites are threatening the health of Michigan’s wetlands and shorelines. The best time to start control and management of phragmites is right now.
The red swamp crayfish has been detected in Michigan. Learn more about identifying and reporting the red swamp crayfish here.
New boating and fishing laws to protect Michigan’s waterways against the spread of invasive species took effect March 21, 2019. Click here to learn more about how these changes may affect you. Additionally, check out the video below from Michigan EGLE on how you can help stop aquatic hitchhikers.
Nor is the introduction of non-indigenous species a problem isolated to the Great Lakes. An estimated 350 non-indigenous species of marine and estuarine plants and animals have been introduced to U.S. coastal waters. These invaders can be a serious threat to native biotic communities and important fish species.
Another recent invader causing considerable concern is the a small bottom-dwelling fish with a large head resembling that of a tadpole. First discovered in Lake St. Clair in 1990, presumably introduced via ballast water from transoceanic vessels, the round goby and the tubenose goby have spread to Lakes Erie, Michigan and Superior and to many […]
The Eurasian ruffe (Gymnocephalus cernuus) warrants particular attention because of its great potential for adversely affecting the multibillion-dollar Great Lakes sport fishery. The ruffe is a small but aggressive fish native to Eurasia. It was introduced into Lake Superior’s Duluth/Superior harbor area in the mid-1980s in the ballast water of an trans-oceanic ship. Research between […]
Eurasian watermilfoil reproduces by fragmentation, thus it does not rely on seed for reproduction. This reproduction allows for the plant fragments to be dispersed and carried by water currents and wind or inadvertently picked up by boaters.
After Treatment the plants turn tan or brown (sometimes even white or pink) sink to the bottom and slowly decompose. Since most aquatic weeds are 90-95% water, little residual is left. However some emergent weeds such as cattails, torpedo grass and woody brush such as primrose willow will take weeks or even months to decompose.
Only a small amount of nutrients added to a pond can cause a lot of problems with aquatic plant growth. Nutrients can be added to your pond in a number of ways, such as, leaves, grass clippings, wildlife waste, and runoff from lawns, cattle pastures, and farm fields all add a large amount of nutrients […]
The resident Canada goose population doubles every three years. As a result, heavy concentrations of geese make playgrounds, athletic fields, corporate campuses, parks and recreational areas, golf courses and residential areas unusable. In addition, just one goose will produce feces 28 times a day.