September 11th, 2013 by Irene Miles
A group of researchers from Purdue University spent a week aboard a research vessel in Lake Michigan, attempting to track and map the way that the currents move and transport marine life and pollutants with them.
“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.'”
Read the complete article, including more information about how they tracked the current flow through the lake, at the link above.
September 6th, 2013 by Irene Miles
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.
Researchers found high levels of the anti-diabetes drug metformin, the anti-bacterial drug triclosan and the antibiotic sulfamethoxazole as well as high levels of caffeine in both water and sediment samples taken from the lake. In total, 38 different compounds were found in the samples in some concentration, including acetaminophen, testosterone, codeine and several antibiotics.”
Follow the link above for the complete article (including a link to the study and additional reading), and find out more about the importance of proper medicine disposal at our UnwantedMeds.org site.
September 5th, 2013 by Irene Miles
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.
Teachers were asked to complete a survey and provide details about how they wanted to integrate the SeaPerch technology into their science lessons, and the responses were outstanding. In addition to bolstering their own classroom activities, several teachers hoped to use the starter kit and accompanying science lessons to share with teachers throughout the area. One winner wrote, “The SeaPerch program and applications would be an excellent topic to present at the Illinois Computing Educators Conference targeting science teachers and integration of science and engineering.”
In addition to offering a new tool to teachers, the contest helps to further activity and curriculum development and provides educators an opportunity to network and share their ideas with others. All of which complements IISG’s goal of fostering Great Lakes science literacy and engagement throughout the region.
September 4th, 2013 by Irene Miles
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.
So far, Rios-Mendoza’s hypothesis is that the plastic in the Great Lakes starts small, possibly as scrubbing beads in household or beauty products, facial scrubs and even some toothpaste.”
Follow the link above to read the complete article, including information about some of the harmful properties of this pollution, and read about IISG’s Laura Kammin and Anjanette Riley taking part in the research this summer here.
August 28th, 2013 by Irene Miles
The APEX awards are given each year by Communication Concepts to recognize outstanding publication work in a variety of fields, and Illinois-Indiana Sea Grant was selected this year for two separate awards.
IISG’s Laura Kammin was recognized for the creation of our proper medicine disposal website UnwantedMeds.org. Working with Jane Scherer at the University of Illinois’ Extension program, Laura created the website and blog, providing valuable information about the dangers that improper medicine disposal can pose to the environment, steps that people can take to prevent medicines from getting into the wrong hands or contaminating the environment, and information about local take-back events and collection programs.
Additionally, the IISG communications team of Irene Miles, Anjanette Riley, and Susan White were recognized for the publication of our 30 milestones, celebrating and highlighting a range of accomplishments in the first 30 years of the Illinois-Indiana Sea Grant program. You can browse the milestones with photographs in our Facebook album.
August 27th, 2013 by Irene Miles
Visitors to Jens Jensen Park in the Chicago suburb of Highland Park will notice a change to the landscape this year. The Fountain of the Blue Heron, nestled between the park’s grassy land and thick forestry, has been transformed into a water garden. But this is no ordinary water garden. Like much of the park surrounding it, this garden was built with plants that are native to northeastern Illinois.
The fountain was redesigned by the Park District of Highland Park and the Chicago Botanic Garden, with funding assistance from Illinois-Indiana Sea Grant, to give park visitors a closer look at how native aquatic plants like lizard’s tail, water willow, and sweet flag can be used to create beautiful, healthy water gardens.
“Native plantings have gotten a bit of a bad rap,” said Bob Kirschner, director of restoration ecology at the Chicago Botanic Garden. “They are often seen as weedy and unorganized. We wanted to demonstrate how you can use native aquatic plants to achieve the ornamental look many people desire.”
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.
“Once an invasive species has become established, the negative impacts on the environment cannot be fully reversed,” said Greg Hitzroth, an IISG aquatic invasive species outreach specialist. “By growing non-invasive species, gardeners can help prevent a new population of harmful species from taking root in local environments.”
The over one dozen species of aquatic plants at home in Jens Jensen Park will also provide food for birds, insects, and other wildlife. Native plants are especially important for pollinators like bees and butterflies that keep northeastern Illinois’ natural areas flowering.
Visit IISG’s Aquatic Plants in Trade website to learn more about aquatic invasive plants and read this water gardening brochure to learn how you can help curb the spread.
August 26th, 2013 by Irene Miles
Katherine Touzinsky, a graduate student at Purdue University and 2014 Knauss Fellowship finalist, set out to prove to skeptics that Asian carp really does taste great. The taste test was held in conjunction with the Houston Bowfishing Classic tournament along the Wabash River outside Lafayette, Indiana.
Katherine and Angie Archer, fellowship specialist with IISG, served up tasty fried fish strips which Katherine calls “silvertips”, a wordplay combination of silver carp and wing tips. Many of the bowfishermen have caught Asian carp but had never tried this mild white fish. After watching friends enjoy the crispy fish, they were encouraged to grab a piece. The reactions ranged from “so-so” to “delicious,” with a few coming back for seconds (and even thirds).
The Houston Bowfishing Classic shoots are in their eighth year and are quickly gaining in popularity and notoriety among Midwestern bowfisherman. Katherine’s project, entitled “Winning Back the Wabash—Clean ‘em Out and Cook ‘em Up,” was funded by a Purdue Sustainability Office grant. The goal of the grant project is to help foster environmental stewardship and invasive species control through outreach and active engagement of community members. To help with control, the tournament offered an award to the most silver and bighead carp caught by a team, and another award for the biggest fish (by weight). The 14 teams hauled in 171 Asian carp, with the biggest silver carp weighing in at 11.3 pounds and a bighead carp that weighed 14.5 pounds.
The Dean John A. Knauss Fellowship, awarded annually through National Sea Grant, provides post-graduates the opportunity to work with legislative and executive branches of the U.S. government in Washington, D.C. for one year. Students who have an interest in oceanic and Great Lakes research or marine policies affecting our natural resources are encouraged to apply. For more information, visit the fellowship page on our website.
August 23rd, 2013 by Irene Miles
Back in April, we announced an art contest that asked K-12 students to share their ideas of how Lake Michigan could be protected from Asian carp. The results are now in, and three students in the Champaign area have been crowned the winners.
The awards go to Kylie Jackson, a third grader from Mahomet, and Lindsay Donovan and Nicole Dudley, both kindergarteners from Champaign. Each of their drawings depicts different ways to control the spread of Asian carp by keeping eggs from hatching. Kyle, Lindsay, and Nicole were chosen from 67 entries. Drawings were judged on creativity, artistic design, and relevancy to the topic.
The contest, funded by Illinois-Indiana Sea Grant, is part of ongoing efforts to introduce people to a new modeling tool that resource managers and lawmakers can use to prevent the spread of Asian carp. The model, known as FluEgg, can help decision makers identify where in the Great Lakes the invasive fish could become established. Because carp eggs have to stay afloat to hatch, Asian carp need to spawn in fast-moving streams. In order to thrive in the lakes, they would need access to places where there is a lot of turbulence, such as downstream from dams and spillways. Resource managers can use FluEgg to find those areas where conditions are right and test how effective prevention methods would be.
Developed by University of Illinois researchers Tatiana Garcia and Marcelo Garcia, FluEgg is the first of its kind to consider factors like water temperature and turbulence as well as biological data about early life stages to answer the question of whether Asian carp can become established in the Great Lakes. The model has already revealed that the Sandusky River in Ohio—a tributary to Lake Erie that was though unsuitable for spawning—could be a breeding ground for Asian carp during warm summer months. In the coming months, Tatiana and Marcelo plan to use FluEgg to evaluate more tributaries.
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.
Find out more about invasive species at our website.
