Using native aquatic plants like those in Jens Jensen Park is about more than just creating striking water gardens, though. Growing native species also helps curb the spread of invasive aquatic plants that outcompete native species and upset food webs. Invasive species common in water gardens are already threatening the health of Illinois waterways. For example, the fast-growing Brazilian Elodea—typically sold in aquarium stores and water nurseries under the name “Anacharis”—has been found in several lakes and ponds in Illinois, including in a community not far from Highland Park. Like many invasive plants, this waterweed grows in dense mats that block out sunlight needed by other species and hinders water recreation. And it is nearly impossible to remove once it has been introduced.
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Jens Jensen Park water garden goes native
August 27th, 2013 by Irene MilesInvasive carp turned delicious taste test at recent bowfishing tournament
August 26th, 2013 by Irene MilesStudent art contest focusing on Asian carp announces winners
August 23rd, 2013 by Irene MilesPurdue Day offers opportunity to share invasive species info
August 21st, 2013 by Irene Miles
Purdue Day at the Indiana State Fair turned out to be a great place for Illinois-Indiana Sea Grant specialists to show off the Asian carp bag toss game. Fair goers of all ages tried their hand at making the shot, and they got to learn more about invasive Asian carp at the same time.
With each throw, Purdue graduate students Zoe Almeida and Allison Hyrcik and IISG specialists Kara Salazar and Angie Archer quizzed the visitors on facts related to Asian carp. Many were eager to learn more and to find out about actions they could take to control the spread of Asian carp.

Attracting close to a million visitors each year, the Indiana State Fair offered specialists the opportunity to talk with Hoosiers from all areas of the state, from the southern border near the Ohio River to the northern part of the state around Lake Michigan. With so many waterways throughout Indiana, visitors to the booth were interested to learn more about invasive species and steps that could be taken to protect the state’s natural resources.
In the news: Aquaculture a growing food field in Indiana
August 19th, 2013 by Irene MilesAquaculture, the business of raising fish for commercial sale, is a growing part of Indiana’s agriculture practice, and Illinois-Indiana Sea Grant’s Kwamena Quagrainie is just one of the people helping to make that possible.
From Purdue University:
“Estimated sales from Indiana fish farms amounted to more than $15 million in 2012, an increase from $3.5 million in 2006, according to the publication Economic Importance of the Aquaculture Industry in Indiana. There are about 50 fish producers in Indiana, compared with 18 just seven years ago.‘While aquaculture is not the most well-known industry in Indiana’s agriculture sector, it is definitely present and very important to the state’s economy,’ Kwamena K. Quagrainie, aquaculture marketing specialist in Purdue University’s Department of Agricultural Economics, said in the report. He conducted the study with graduate student Megan C. Broughton.
‘The industry has seen steady growth over the past few years, and it is important to know exactly how much economic activity is associated with aquaculture in Indiana,’ Quagrainie said.Indiana’s aquaculture industry ranges from small-scale producers raising fish in their backyards to large-scale producers growing fish to sell in national and international markets, the report says. The industry includes production of fish for human food, ornamental fish for aquariums and recreational fish that are stocked in private and public ponds and lakes.”
New manual provides the how-tos of outdoor water conservation
August 15th, 2013 by Irene MilesThe manual comes just as the height of the summer season has led some areas to enact strict watering policies or, in the recent case of Lake Forest, institute a temporary ban on outdoor watering altogether.
Lake Michigan sampling trip reaps plastic microbeads
August 14th, 2013 by Irene Miles
Last week, IISG’s Anjanette Riley and Laura Kammin set sail on Lake Michigan to learn more about plastic pollution in the Great Lakes. Anjanette wrapped up the trip by writing about the experience: The sampling process started like many do – with a countdown that sets off a whirlwind of action. On three, some in the 5-person crew would hoist a 4-foot-long trawl overboard while another recorded the time, the boat’s location and speed, and the direction and force of the wind. Another person was responsible for adjusting the sails and the boat’s direction to keep it moving at a slow-but-steady speed. The next 30 minutes—as exact as possible—would be a bit calmer. The trawl skimmed the surface of Lake Michigan, trapping everything that crossed its path in a narrow net. And the crew got ready to process the sample. The real work started when the trawl was pulled from water. Everything caught in the net—large and small, natural and man-made—had to be moved to a plastic bottle so its contents could be examined later. It sounds simple enough, but the netting is small and getting tiny beads of plastic or nearly-microscopic animals into the bottle required a multi-step process that took time. Step 1: use a spray gun to get everything out of the net and into a tightly-woven sieve. Step 2: spray everything to one side of the sieve. Step 3: spoon the larger contents into a plastic bottle. Step 4: drain everything else into the bottle. Step 5: pour in some rubbing alcohol. Step 6: label the plastic bottle with the sample number and tape it up to prevent it from spilling. And repeat.
During the three days Laura and I were aboard the sailboat Free at Last, the crew collected 16 samples from all across southern Lake Michigan. With us on the boat was Stiv Wilson, communications director for the plastics research group 5 Gyres, Nick Williamson, an undergraduate research assistant at SUNY Fredonia, and Conor Smith, the ship captain. Together, we made a triangle from the Chicago area to just south of the Wisconsin border to South Haven, Michigan and back, collecting water samples about every hour and a half.
We found bits and pieces of plastic in several of the samples. Most of what we saw were tiny microbeads, like the kind used as exfoliants in face and body washes. On the second day, though, we pulled a plastic cigarette wrapper from the lake. Beyond the reach of the trawl, we also saw balloons, plastic bags and bottle lids, a straw, and a couple other pieces of unrecognizable plastics riding the waves. But these were just the things large enough to be seen. We won’t know for sure how much plastic is in the lake until Sherri Mason and her research team at SUNY Fredonia examine the samples under a microscope over the next few months.
The findings from this trip will be added to the results of previous research excursions on northern Lake Michigan and each of its sister lakes to get a more complete picture of plastic pollution in the Great Lakes. Initial results have already revealed that the lakes have a higher concentration than some parts of the world’s oceans, where plastics have been a major environmental concern for years.
Because plastics float and break down very slowly over time, everything from chemical contaminants to bacteria and invasive species can latch on and catch a ride to new ecosystems. These sampling trips are the first to examine whether the Great Lakes may be facing the same ecological threat.
Tribune focuses on Lake Michigan microplastics research
August 9th, 2013 by Irene Miles
As you read in yesterday’s blog post, IISG’s Laura Kammin and Anjanette Riley are taking part in a research trip on Lake Michigan this weekend investigating the presence and concentration of microplastic pollution in the Great Lakes.
The Chicago Tribune has more details about the research:
“Calling the lake ‘its own separate little beast,’ Mason said she expects to find high levels of microplastics in Lake Michigan because it borders so many large cities and because water molecules are estimated to swirl around the lake for about 99 years on average before being replaced by water flowing in. Water stays longer only in Lake Superior, according to the National Oceanic and Atmospheric Administration.On Friday the researchers boarded the Niagara at St. Ignace, Mich., and sailed from Lake Huron into Lake Michigan. After a stop in Milwaukee, the ship is scheduled to arrive in Chicago on Wednesday afternoon. Along the way, researchers planned to collect almost 30 samples.One scientist who sailed on last summer’s research trip is back in her lab, studying the chemicals that may be piggybacking on the microplastics gathered from Superior, Huron and Erie.The particles ‘work like a sponge’ for pollutants, said Lorena Rios Mendoza, an assistant professor of chemistry at the University of Wisconsin at Superior. One reason is that microplastics have a large surface area in relation to their size, which means there are plenty of places for the chemicals to stick.”
Research mission beginning today looks into microplastic pollution of the Great Lakes
August 8th, 2013 by Irene MilesThe first round of sampling revealed that the Lakes are home to between 1,500 and 1.7 million plastic particles per square mile, with Lake Erie housing the largest concentrations. Dr. Sherri “Sam” Mason of the State University of New York (SUNY) at Fredonia, Dr. Lorena Rios-Mendoza of University of Wisconsin, and Dr. Marcus Erikson of 5 Gyres Institute have determined that much of the plastic they found was actually microbeads, found in many brands of toothpaste and facial and body scrubs. These tiny pieces of plastic are less than a millimeter in diameter, much too small to be filtered out by wastewater treatment facilities before that water is released into nearby lakes and rivers.
Recent News
- Illinois-Indiana Sea Grant announces 2026 Graduate Student Scholars
- IISG and Purdue FNR Remember Carolyn Foley, Names Great Lakes Research Award
- 2026 IISG interns explore the field of environmental science
- Educators become students at Great Lakes Project WET workshop
- Registration now open for the 2026 State of Lake Michigan Meeting
IISG Instagram
What does a career in natural resources look like?
This month, a group of 4-H youth joined us at Martell Forest to find out! From tree climbing and birding to creating scent traps and dissecting owl pellets, participants spent three days exploring the many ways people work with and protect our natural resources.
Thanks to everyone who joined us! We can’t wait to see where your adventures take you next!
What does it mean to be Great Lakes literate?
It’s understanding how the Great Lakes shape your life and how your choices impact the lakes.
To be Great Lakes literate is to understand, communicate, and care for these special freshwater resources. 💙
Learn more about Great Lakes Literacy by visiting the Center for Great Lakes Literacy’s website at the link in bio.
#TeachingTuesday
Happy Juneteenth from all of us at Illinois-Indiana Sea Grant!
Got a research idea for southern Lake Michigan?
IISG’s 2026 Seed Grant Research Competition is open. Up to $150,000 total funding for pilot studies that could become your next big project.
💵 $10,000 to $50,000 per project
⏰ Applications due August 17, 2026
Two info webinars coming up: July 2 and July 21.
🔗 Full details at the link in bio.
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