“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.”

Joining IISG staffers at the event were teachers and students from area schools who came to share what they are doing in their communities to protect water quality and aquatic wildlife. LaToyia Gilbert and her students talked about bringing medicine disposal ‘dos and don’ts’ to citizens and pharmacy technicians in Gary, IN.

Latoyia was inspired to create this project based on what she learned at the recent Great Lakes B-WET workshop. Jim Doyiakos and students from Amundsen High School introduced visitors to the risks of invasive species. And Ronald Hall’s 41st Street Beach Eco Warriors from Evergreen Academy Middle School shared their experiences picking up trash and monitoring water quality at Chicago’s 41st Street Beach.

Thanks to a Shedd Aquarium teacher workshop going on that same day, some of the people who stopped by the exhibits were also teachers looking for ways to bring Great Lakes science into their classrooms. Many of these teachers took pictures of the displays or copies of the handouts so they could replicate the activities later. Others sought advice from teachers manning exhibits about potential stewardship projects they could do with their students. One teacher who helped with the event even asked if it could be repeated in the spring so her students could present their own projects.”

Recent research in the Chicago area shows that bacteria are developing a resistance to a common antibacterial chemical used in many household and personal care products. 

From The Cary Institute: 

“Invented for surgeons in the 1960s, triclosan slows or stops the growth of bacteria, fungi, and mildew. Currently, around half of liquid soaps contain the chemical, as well as toothpastes, deodorants, cosmetics, liquid cleansers, and detergents. Triclosan enters streams and rivers through domestic wastewater, leaky sewer infrastructure, and sewer overflows, with residues now common throughout the United States.

 

Emma Rosi-Marshall, one of the paper’s authors and an aquatic ecologist at the Cary Institute of Ecosystem Studies in Millbrook, New York explains: ‘The bacterial resistance caused by triclosan has real environmental consequences. Not only does it disrupt aquatic life by changing native bacterial communities, but it’s linked to the rise of resistant bacteria that could diminish the usefulness of important antibiotics.'”

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.”