January 15th, 2014 by Irene Miles
The most recent report from the U.S. Army Corps of Engineers regarding invasive species and threats to the Great Lakes recommends a pricey but perhaps necessary project – separating the Chicago River and Lake Michigan from each other.
From The Atlantic Cities:
“Over the last decade or so, a huge range of interests — from environmental groups to fishermen to shipping experts to politicians — have raised the alarm over just how much this artificial connection has created an opening for invasive species such as the Asian carp to make their way through North America’s waterways. And the costs associated with the damage caused by these species have been high enough to prompt serious consideration of closing off the link between the Mississippi and the Great Lakes.
How high? First, consider the figure $18 billion. That’s the estimate the U.S. Army Corps of Engineers released last week to re-insert a physical separation between the Great Lakes and the Mississippi system. The full report, the Great Lakes and Interbasin Mississippi River Study, was commissioned by Congress to address the growing threat of invasive species in the area known as the Chicago Area Waterway System. The final report details a wide spectrum of actions — ranging from essentially maintaining the status quo to engineering a complete separation over a 25-year period — but doesn’t offer recommendations on which course to take.”
Visit the link above for the complete article, which includes very interesting numbers related to the threat of invasive species (and the long-term costs of managing/controlling them if no action is taken).
January 8th, 2014 by Irene Miles
School is back in session and that means science teachers across southern Lake Michigan will be turning their sights to the Great Lakes. For the AP Environmental Science class at Zion-Benton Township High School, though, the issues facing nearby Lake Michigan have been in focus since the start of the year.
Their teacher, Alex Stavropoulos, got the idea for some of his classroom and field activities after spending a week aboard the U.S. EPA R/V Lake Guardian this summer for the annual Shipboard and Shoreline Science Workshop. Alex wrote in to tell us what his class has been up to.
Towards the beginning of the school year, my class spent about a month on our “Aquatic Habitats and Biodiversity” unit. After exploring the general nature of aquatic systems (both marine and freshwater), we took a closer look at our local water systems, specifically Lake Michigan. During this time, we discussed the history of the Great Lakes, identified the various ways in which humans have used and altered the makeup of the Great Lakes, spent two days conducting water-quality testing and macro-invertebrate sampling (using both biotic and abiotic indicators to compare water quality in various tributaries to that of the mouths in which they fed into Lake Michigan), and debated plausible methods to prevent invasive species such as the Asian Carp from entering the Great Lakes.
Throughout this entire unit, I found myself regularly referencing experiences I had during the Lake Guardian summer workshop. The experiences not only allowed me to better explain the complexity of some of these issues, but it also opened my students’ eyes to hands-on opportunities available in the world of science. It taught me a great deal about the Great Lakes, but, more importantly, it improved my ability to teach students about the Lakes’ significance. I hope this program continues to be funded for years to come as it is a wonderful way of spreading both knowledge and passion regarding the importance of preserving the gift that is the Great Lakes.
This year’s workshop will take place on Lake Erie. Keep an eye on our blog in the coming months for more details and application information.
December 18th, 2013 by Irene Miles
In the battle against invasive sea lampreys in the Great Lakes region, Wisconsin has committed to the fight with new legislation signed last week.
“To help combat the invasive, eel-like fish, Gov. Scott Walker signed legislation on Thursday for the state to spend up to $564,500 in the next two fiscal years on lamprey control efforts on Lake Michigan and Lake Superior.
The controls include chemical treatments and barriers that block the movement of swimming lamprey, which according to the Wisconsin DNR ‘have no jaws, no true teeth, no paired fins and a skeleton made of cartilage, not true bone.’
The state funds are expected to be matched with federal dollars for control efforts that are taking place across the Great Lakes basin.
In Lake Michigan, 126 of 511 tributaries have historic records of sea lamprey production. Of those 83 tributaries have been treated with chemicals, according to the Fish and Wildlife Commission. A major focus of treatment took place on the Oconto River in northeastern Wisconsin, where about 60 miles of the river were treated.”
Read the complete article at the link above.
December 17th, 2013 by Irene Miles
Residents of Sheboygan, Wisconsin are seeing their namesake river, and the opportunities it holds for the community, in a whole new light thanks to a suite of cleanup projects completed in 2012 and 2013. For decades, high concentrations of PCBs and other industrial pollutants lining the riverbed had kept river-goers and businesses at arm’s length. But with the contaminated sediment removed and habitat restoration well underway, the public is embracing the river with full force.
“After nearly three decades of being a black eye of the community, we are thrilled that the Sheboygan River and harbor is being restored to reduce health risks to people, fish, and wildlife, and will greatly enhance opportunities for economic development,” said Adam Payne, Sheboygan County Administrator at a 2012 press event celebrating the project.
Perhaps the biggest boost so far has been to recreation. Dredging the equivalent of 15,000 dump trucks of contaminated sediment left boaters and anglers with a deeper river that is easier to access and navigate. With the contamination gone, the community has also started to see the Sheboygan River as a safe place to spend an afternoon. Just a few months after the project ended, residents reported seeing more and bigger boats navigating in and out of the river’s harbor, and they expect to see even more fishing and boating in the coming years.
“Anytime you have a healthy river going through a community, you have a better quality of life,” said one resident to IISG’s Caitie McCoy and Emily Anderson as part of a series of interviews about how community perceptions of the river had changed.
The deeper, cleaner river has also attracted local businesses. Everything from coffee shops to digital communications companies have opened along the river, and more businesses are expected to follow. It is too early to say just how much the cleanup project will impact things like property values, tourism, and redevelopment, but it is already clear that riverfront development is on the rise thanks to changes to the river and its newly restored status within the community.
“When it comes right down to it, those who would invest in the river and want to develop this property, they are really after the water access,” said another resident.
There is good news for local wildlife too. With the dredging work completed, the Wisconsin Department of Natural Resources and other project partners have begun work to restore native habitats. Recently planted native plants have caught the attention of a variety of species, including cranes and blue birds. With this work done, the Sheboygan River will officially be taken off the list of most polluted places in the Great Lakes.
December 5th, 2013 by Irene Miles
Researchers are reporting that they have found DNA evidence of an invasive fish, Eurasian ruffe, in the southern Lake Michigan waters.
“The Nature Conservancy said a team of researchers from the University of Notre Dame, Central Michigan University and its own organization found evidence of DNA of Eurasian ruffe in Calumet Harbor, south of Chicago.
Two positive samples from the harbor were collected on July 8. The harbor is at the mouth of the Chicago-area waterway system. Environmental DNA is a surveillance tool that can be used to monitor the genetic presence of aquatic species.
The waterway system is part of an engineered canal that provides an artificial link between Lake Michigan and the Mississippi River basin and has been infiltrated with invasive Asian carp from the Mississippi for years.
That same system has the potential to introduce Eurasian ruffe in the Mississippi, according to the Nature Conservancy. The group said the genetic findings underscore the need for a permanent barrier to block species from moving between the Great Lakes and Mississippi systems.”
Read the complete article at the link above to learn more about this invasive species and the test results.
December 3rd, 2013 by Irene Miles
Non-profit organization The Nature Conservancy recently acquired a small island in Lake Michigan that is used by migrating birds as a stopping point on their journey.
“St. Martin Island is part of a chain that runs between Wisconsin’s Door Peninsula and Michigan’s Garden Peninsula…
The Luber family sold it to the nonprofit conservancy for $1.5 million dollars. The Nature Conservancy says the price was well below market value.
Eventually the island will be included in the Green Bay National Wildlife Refuge.
Dave Ewert is a senior scientist with the Nature Conservancy in Michigan. He says the chain of islands is really important for migrating land birds in the spring and fall.
‘If they’re caught out away from mainland then they’re going to look for islands to come down, land, feed, rest, seek refuge from predators. So these islands really are a godsend to these migratory birds,’ Ewert said.
He says more than 100 species have been documented in the chain of islands. St. Martin is one of the larger islands at more than 1,200 acres. The U.S. Coast Guard has a light tower on the island.”
Read more about the island at the link above.
December 2nd, 2013 by Irene Miles
The invasive snail first moved into the Great Lakes decades ago and took up residency in Lake Michigan about 5 years ago. Inland lakes and rivers in the Midwest, though, had remained snail-free. That is until last month, when the Wisconsin Department of Natural Resources reported finding the snails in Black Earth Creek, about 25 miles north of the Illinois state line.
To keep this rapidly-reproducing snail from taking over local waterways and forcing out native species, officials in Illinois and Wisconsin are asking recreational water users and other outdoor enthusiasts to take three simple steps after a day near the water:
· Remove all plants, animals, and mud from boats, trailers, and equipment
· Drain everything, including bait buckets and live wells
· Dry everything with a towel
The small size of this invasive species—no more than 5 mm in length—makes them nearly impossible to spot. But diligently following these simple procedures can ensure that the New Zealand mud snail isn’t accidently carried unseen to from one body of water to another.
To learn more about what you can do to help prevent the spread of the New Zealand mud snail and other invasive species, visit www.TransportZero.org.
*Photo courtesy of Mohammed El Damir, Pest Management, Bugwood.org
November 15th, 2013 by Irene Miles
The 3rd Annual Great Lakes Place-based Education Conference, November 7-9 in Grand Rapids, Michigan, brought together over 200 teachers, community representatives, non-profit organization educators, and more. The conference gives teachers an opportunity to incorporate the latest place-based research and education concepts about the Great Lakes into their lessons, encouraging student stewardship, continuing science education, and community development.
IISG’s Robin Goettel attended the conference and organized a poster session, “Center for Great Lakes Literacy: Connecting Educators, Scientists and Citizens.” The Center for Great Lakes Literacy (CGLL) “engages educators, students, scientists, and lifelong learners in stewardship and citizen science activities to help protect and restore Great Lakes watersheds.”
According to Robin, “A major focus of this exhibit was creating awareness of Great Lakes Literacy Principles – a great foundation from which to create an environmental stewardship ethic. CGLL specialists shared exciting educator opportunities including ship-based and shoreline workshops focusing on the latest Great Lakes issues. Visitors learned about water quality monitoring equipment they can use with their students made available courtesy of the USEPA GLNPO Limno Loan program. Participants also found out about Great Lakes Awareness Days that will be offered throughout the region.”
Representatives of the CGLL program from seven Great Lakes Sea Grant programs were on hand to talk with attendees about the wide array of resources available, many specifically tailored to the environmental needs and issues of their region. Classroom resources were also available, including Fresh and Salt and Greatest of the Great Lakes curricula, as well as the Dose of Reality newspaper activity guide that covers the disposal of unwanted medicines and personal care products.
November 11th, 2013 by Irene Miles
Recent research on Great Lakes contaminants has shown that microplastics – small beads of plastic used in many exfoliants, toothpastes, and other products – are contributing to pollution levels. As a result, mayors near the Great Lakes are calling on manufacturers to remove the plastics from their products.
From TheObserver.ca:
“The Great Lakes and St. Lawrence Cities Initiative, representing more than 100 Canadian and U.S. cities, is urging industry and governments to have microplastics removed from personal care products.
Its call came as a study on microplastic pollution was published based on sampling last summer on Lake Huron, Erie and Superior led by Sherri Mason, a professor at the State University of New York at Fredonia.
‘It takes that kind of initiative to get things to change,’ she said of the mayor’s support for the issue.
‘It’s not so much about cleaning it up, as it is about stopping it at its source.’
Mason returned to the lakes for seven weeks this summer to collect more samples, including one from the St. Clair River at Sarnia that will be analyzed as the study continues.
Samples taken in 2012 included green, blue and purple coloured spheres, similar to polypropylene and polyethylene microbeads in consumer products, such as facial cleaners.”
Read the complete article at the link above.
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