Marissa Cubbage smiles in front of waterfall

Master’s student Marissa Cubbage came to Purdue University to study the young life stages of fish in the Great Lakes. Arriving in West Lafayette in the summer of 2019, she laid out the plans for her research on lake whitefish in Lake Michigan. But just two weeks before her sampling was set to begin, state agencies and the university shut down all out-of-state field work due to the pandemic.

A change in plans was in order, so Cubbage opted to use previously collected larval samples by the Little Traverse Bay Band of Odawa Indians. The tribe had collected samples from 2015 to 2019 and were willing to share them with her, offering a unique glimpse at a longer window of data than the one-to-two years of sampling that a traditional Master’s degree allows.

This analysis informed Cubbage’s thesis, which addresses how the decline of zooplankton populations has affected the diet of larval whitefish.

Cubbage presented her research findings to the tribal biologists and technicians through virtual presentations and meetings. She also created an informational handout that will be distributed along with subsistence and commercial fishing licenses.

Cubbage was funded through Illinois-Indiana Sea Grant and both Tomas Höök, IISG director, and Paris Collingsworth, Great Lakes ecosystem specialist, served as her thesis advisors.

Read the full story on the Purdue University Department of Forestry and Natural Resources news page.


Illinois-Indiana Sea Grant is a part of University of Illinois Extension and Purdue Extension.

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Happy International Women’s Day! A special thank you to the incredible members of our IISG community who inspire, lead, and drive change every day. 🎉
It’s almost our favorite time of the year...Rain Garden Rumble!This will be our 6th annual competition where 28 native plant species go head-to-head (or bloom-to-bloom?) in a fierce competition. But the best part? YOU determine who is crowned champion.There are a few ways to participate. First, fill out a bracket* (steps below). Then, vote in our daily Instagram polls or Facebook posts from March 18th through April 4th. The person who submits the most accurate bracket wins a sweet set of Illinois Extension "rain-care" merch (an umbrella and rain gauge)!👀*You do NOT have to fill out a bracket to vote in the polls!1. Click the link in our bio to open our official blog with more information regarding the event.2. Scroll down and click our bracket.3. In the tab that pops up, click the “download” icon.4. Fill it out with your picks and save the document. Please include your name! Note that you can learn more about the plants by clicking their names in the bracket.5. Submit your completed bracket to RedOakRainGarden@illinois.edu by Monday, March 17. Matches begin the following day on Facebook and Instagram.May the best plant win...🌿🏆#RainGardenRumble2025
Learn about freshwater jellyfish in Wolf Lake!! #IISGfunded researcher Nadine Folino-Rorem of Wheaton College is speaking to Calumet Revisited on Mar 4, 2025 at 5:00 PM Central, and you can listen in! Request a Zoom link: booscommunications@gmail.comLearn more about this research at the link in bio.
Reminder to apply by March 5!!IISG has a new funding opportunity for promising two-year research projects addressing issues relevant to the southern Lake Michigan ecosystem and the surrounding communities in northeast Illinois and northwest Indiana.The competitive grant program funds research projects aligned with the goals outlined in the Illinois-Indiana Sea Grant Strategic Plan 2024-2027. These goals include Healthy Coastal Ecosystems, Resilient Communities and Economies, Sustainable Fisheries and Aquaculture, and Environmental Literacy and Workforce Development.Learn more at the link in bio.
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