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.'”

Illinois-Indiana Sea Grant’s Caitie McCoy and others have just completed work on a new curriculum for elementary and high school science students. 

Helping Hands: Restoration for Healthy Habitats offers lessons and hands-on activities to connect students in the Great Lakes with recent or ongoing cleanup and restoration projects happening in their communities. The range of activities offers new ways to engage students with real-life examples that show environmental science in action.

Teachers interested in having Sea Grant lead the curriculum in their school should contact Caitie McCoy. Caitie can work with the teacher to customize curriculum to meet school-specific needs. The curriculum expands Great Lakes literacy among students, many of whom may become future researchers and educators.

Community leaders in Areas of Concern that would like to help Sea Grant lead or set up an educational program are also encouraged to contact Caitie. The complete curriculum is free to download at the link above.

Recent research indicates that even a handful of Asian carp, between just ten and twenty fish, could establish an ecologically damaging population in the Great Lakes. 

From ScienceDaily.com: 

“Published this week in the Biological Invasions journal, research from Professor Kim Cuddington of the Faculty of Science at Waterloo indicates that the probability of Asian carp establishment soars with the introduction of 20 fish into the Great Lakes, under some conditions…

 

‘This species will have a huge impact on the food web,’ says Professor Cuddington. ‘Not only is it a fast-growing fish physically, but the population itself grows very quickly. A female can lay well over a million eggs a year, and with no known predators present in the Great Lakes, the Asian carp could dominate the waters and impact fisheries.’…

IISG staff will have the opportunity to see aquaculture in action next week while touring the Bell Aquaculture facility in Albany, IN. IISG’s Kwamena Quagrainie has been studying and providing expert advice to aquaculture operations in the Midwest and worldwide for many years, and will be giving the staff more information on how the facility provides millions of pounds of sustainably grown fish to the market each year.

Aquaculture has been a growing food field in the state of Indiana, and a recent feasibility study funded in part by IISG (available online soon at our research projects page) shows that it may have significant potential in Illinois as well.

Additionally, Purdue University produced this great video about aquaponics, which is an extension of aquaculture where fish and plants are raised sustainably and simultaneously in a mutually beneficial system. 

Learn more about aquaculture on our aquaculture page. 

“The Great Lakes lack the predictable regularity of tides; a combination of factors including winds, temperature and current depth influence currents. Combined, these factors cause a complex, spiraling water flow, producing a type of interior (rather than surface) waves called inertial waves.

 

The researchers hypothesize that the inertial waves are the primary mechanism governing the movement and dispersion of particles. ‘You can get currents as strong as a half-meter per second in the middle of Lake Michigan,’ Cary Troy of Purdue’s School of Civil Engineering said prior to the study. ‘The effect is strongest in the middle of each of the Great Lakes, so that’s why we are doing the research there.’

 

‘The goal is to do dye-release experiments and to track the dye patch over time to see where it diffuses and where it moves and to relate that to the information we have about the lake currents and waves,’ Troy said. ‘One obvious application is for something like an oil spill or any sort of contaminant spill in the Great Lakes. If you have a spill, you need to predict where it’s going to go and how quickly it’s going to dissipate.'”

A recent study of Lake Michigan is indicating a high level of prescription drugs in the water, helping to emphasize the importance of proper disposal and the difficulty that water treatment facilities have removing these compounds.

From MLive.com:

“The study was performed by researchers at the University of Wisconsin-Milwaukee and examined water samples taken near a Milwaukee water treatment plant and from the city’s harbor, Environmental Health News reported.

The SeaPerch Program, sponsored by the Office of Naval Research, brings robotics and underwater science together to enhance classroom activities and curricula for a variety of grade levels. Illinois-Indiana Sea Grant recently sponsored a contestto give away several of the kits to teachers of grades 6-12, and the six winners will be receiving their new kits in the coming weeks. Blake Landry, project partner and coordinator of the University of Illinois’ SeaPerch Program, is working with IISG to provide continued support and training to the teachers and their students.

Continuing research on Lake Michigan and throughout the Great Lakes is turning up important information on the presence and concentration of microplastics – particles too small to be filtered by water treatment plants, but which can have negative effects on the environment.

From the StarTribune:

“Fresh off the research boat, Lorena Rios-Mendoza, assistant professor of chemistry at the University of Wisconsin-Superior, presented her preliminary findings to reporters Thursday.

 

She said Lake Erie seems to hold the highest concentrations of plastics, probably because the particles float downstream from the upper lakes, according to the Duluth News Tribune (http://bit.ly/1cnm6BS ).

 

The plastic has also been found in Lake Superior sediment, meaning it’s not just floating on the surface, Rios-Mendoza said.

 

‘It was very shallow where they were found, but they were in the sediment,’ Rios-Mendoza said.

The researchers dragged fine-mesh nets across the surface of lakes. Some of the plastic can be seen only under a microscope.