Freshwater specialists keep fresh waters ... fresh

Contact: Paula M. Davis

Aug. 24, 2016

Read more about 蜜桃社区 researchers and their ongoing work in the 蜜桃社区 Magazine.

KALAMAZOO, Mich.鈥擴sing a remotely operated underwater vehicle, an ROV, John Lutchko helps explore the subsurface waters around Traverse City, including in Grand Traverse Bay, a bay of Lake Michigan.

Photo of Alexis Lee and John Lutchko piloting a submarine.
蜜桃社区 student and NMC staffer, John Lutchko, center, explains the finer points of piloting one of the community college鈥檚 remotely operated submarine vehicles in the West Arm of Grand Traverse Bay in Traverse City. 蜜桃社区 senior Alexis Lee, left, has her hands on the controls as fellow student Sarah Ballard looks on. They used the sub to view quaggi mussels, an invasive species in the Great Lakes.

鈥淩esearch is so fascinating, and there鈥檚 plenty to be done,鈥 says Lutchko, who this summer will be the first graduate of a joint degree program in freshwater science and sustainability offered by 蜜桃社区 and Traverse City-based Northwestern Michigan College.

The linked degrees, an associate from NMC that leads to a bachelor鈥檚 from the University, prepare students to become the next wave of professionals who will solve problems related to freshwater quality, availability and use.

Lutchko has been a top student in both schools. This year, he was named 蜜桃社区鈥檚 environmental and sustainability studies Presidential Scholar, a designation that is the highest academic honor the University bestows on undergraduates. And after earning his associate degree, NMC hired him as its marine technology lab coordinator and primary ROV pilot.

鈥淭hese two programs have been so engaging,鈥 he says. 鈥淲hether it鈥檚 watershed science at NMC, where we do field work, or freshwater ecology, or (蜜桃社区 Professor Charles Ide鈥檚 class on Human Impacts on the Great Lakes), getting out and doing work. That鈥檚 the way you learn for sure.鈥

Viewing invaders

Photo of Dr. Hans VanSumeren and students on a boat.
Dr. Hans VanSumeren, head of NMC鈥檚 Great Lakes Water Studies Institute, explains to 蜜桃社区 students the workings of the remotely operated submarine vehicle shown in the foreground.

On a sunny Saturday morning in June, as part of the human impacts course, 蜜桃社区 students took turns learning how to pilot an ROV while aboard the Northwesterner, NMC鈥檚 56-foot research vessel.

Research and monitoring dives in Traverse City underscore what a gem Michigan鈥檚 freshwater lakes are and, importantly, such excursions reveal some of the invasive species that threaten them, including quagga mussels, gobies and other invaders.

In the West Arm of Grand Traverse Bay, not far from the community college鈥檚 Great Lakes Campus, students searched for the Nyord, a boat that sank in the 1970s.

Intently gazing at a screen that displayed live video from an ROV, 蜜桃社区 student Sarah Ballard followed Lutchko鈥檚 directions for remotely 鈥渇lying鈥 the vehicle, her hands operating what looked like a joystick.

鈥淒on鈥檛 use the up thruster,鈥 Lutchko advised. 鈥淭hrusters kick up debris. Let it float up.鈥

Ballard complied.

鈥淣ow go back and forth.鈥

Soon enough, the murk cleared, uncloaking life some 50 feet beneath the surface of West Bay. Lutchko gestured to a tiny fish that darted into the frame.

鈥淪ee the goby?鈥

鈥淚 see the goby 鈥 right 鈥 there,鈥 a rapt Ballard responded slowly, trying to discern shapes on screen.

Indigenous to the Black and Caspian seas, gobies are not welcome in Michigan鈥檚 Great Lakes and inland waters, as these bottom-dwellers eat the eggs of native fish and compete with native species for food and habitat.

The point of viewing the shipwreck that day was to see firsthand the proliferation of quagga mussels, a habitat-destroying invader that students learned is profuse in the Great Lakes Basin. About the size of a quarter in adulthood, the bivalves came over in ballast water of transoceanic ships.

鈥淭hese organisms have very few natural predators here and they just thrive,鈥 says Ide, the biological sciences professor who teaches the human impacts course.

Quaggas, and the also-invasive zebra mussel, filter feed, which increases water clarity. This may sound beneficial, or even benign, but clearing subsurface waters like this allows algae to grow at increasingly greater depths.

Students found that the Nyord is caked in quaggas, one example of a widespread problem. 

鈥淭here鈥檚 a quadrillion quagga mussels (in the Great Lakes Basin), and they鈥檙e here to stay,鈥 Lutchko says.

鈥淵ou can鈥檛 just go and kill them all because you鈥檙e going to kill a lot of other things in the process. There is nothing we can do; but we have to keep an eye on what鈥檚 going on. That鈥檚 where the monitoring comes in.鈥

Holistic and hands-on

Like this weekend in Traverse City, along with classroom-based instruction, freshwater science and sustainability students get direct experiences in some of the ecosystems they are learning about and may go on to encounter in watershed management, environmental consulting or the other fields they will be prepared to pursue.

鈥淏uilding a cohort of good scientists who have multidisciplinary skills is what this is all about,鈥 says Dr. Hans VanSumeren, director of NMC鈥檚 Great Lakes Water Studies Institute and
co-founder of the community college鈥檚 freshwater studies degree, the first associate degree of its kind in the nation when it was established in 2009.

Several years ago, NMC and 蜜桃社区 officials began talks about joining forces in a program of study that could lead from a two-year degree at NMC to a bachelor鈥檚 degree at 蜜桃社区. The program launched in 2014.

鈥淭he program covers biology and ecology, but it鈥檚 also got policy, data processing, oceanography, climate (science), business and communication. It鈥檚 holistic. Industry wants people who know how to do a lot of stuff,鈥 VanSumeren says.

With its surrounding Great Lakes containing 20 percent of the world鈥檚 surface freshwater, 鈥淢ichigan would have to be the best place in the country, and maybe in the world, to study freshwater,鈥 says Dr. Steve Kohler, professor of biological sciences and director of 蜜桃社区鈥檚 Environmental and Sustainability Studies program.

鈥淥ne, there鈥檚 the quantity. But the other reason is the diversity of systems. The diversity of types, both the lakes and rivers, is outstanding. You have different ecosystems to study. We can鈥檛 show students tropical systems, but we can show them just about everything else.鈥

Students who want to complete all of their freshwater science and sustainability studies in Traverse City may enroll at NMC and earn an associate degree, then transfer to 蜜桃社区-Traverse City to complete the final two years of coursework required for a bachelor鈥檚 degree.

Students also may enroll in the bachelor鈥檚-only version of the program offered on 蜜桃社区鈥檚 main campus in Kalamazoo.

A desire 鈥榯o keep fresh waters ... fresh鈥

Photo of Dr. Hans VanSumeren Zack Ladwig.
蜜桃社区 biology major Zack Ladwig helps VanSumeren retrieve a submarine.

Taking Ide鈥檚 class was an eye-opening experience for Sierra Porter, a sophomore majoring in freshwater science.

The course is based on Ide鈥檚 years of research funded by Environmental Protection Agency grants. In addition to invasive species, his students learn about how pollutants, such as polychlorinated biphenyls鈥擯CBs鈥攊n the Great Lakes and inland waters impact ecosystem and human health.

Each student had a capstone project; Porter鈥檚 presentation was on persistent organic pollutants, such as PCBs. Though production of these industrial chemicals has been banned in the U.S. for almost 40 years, they persist in the environment.

鈥淣ow, more PCBs come into Lake Michigan from other parts of the world through weather,鈥 Ide says. 鈥淭hey come over the lake and get rained down. So, it鈥檚 like a global problem.鈥

PCBs have been found in animal tissue, including that of eagles, water fowl and game fish. The contaminant is one of the reasons state government issues advisories on how much and what type of fish are safe to eat.

As an example of just one ill effect, for a developing fetus, high concentrations of PCBs can interfere with receptors that tell the brain and muscles how to use calcium.

鈥淚f your brain isn鈥檛 using calcium right, in human development, the brain doesn鈥檛 develop properly,鈥 Ide explains

So, a child may be born with learning disabilities and low IQ.

鈥淭he PCB contamination has really opened my eyes,鈥 Porter says. 鈥淚 want to get more in depth and learn about what other contaminants aren鈥檛 being brought to the surface. Why aren鈥檛 they being talked about? Why isn鈥檛 anything being done about these?鈥

When she completes her degree, Porter hopes to 鈥渨ork toward keeping our fresh waters, just as they say, fresh.

鈥淚鈥檓 not sure where that鈥檚 going to take me in life, but being in science is always a thrill, and to study in this program has already given me many opportunities to meet other scientists with the same dream as mine.鈥

For more information about freshwater science degree options, go to wmich.edu/academics/undergraduate/freshwater or contact Dr. Steve Kohler, and NMC鈥檚 Great Lakes Water Studies Institute at (231) 995-3333 or visit .

Read more about 蜜桃社区 researchers and their ongoing work in the 蜜桃社区 Magazine, which is published quarterly by 蜜桃社区's Office of Marketing and Strategic Communications.