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.

IISG Instagram

Add a Great Lakes twist to your summer reading! Discover stories inspired by our region with Great Lakes Great Reads. Check out reading lists perfect for beach days or quiet evenings.https://greatlakesgreatread.org/#BeachReads
Real-time coastlines, real-world insights. Check out the LIVE feed of Lake Michigan at Indiana Dunes State Park Beach – supporting recreationalists, researchers, and the broader public at the link in bio.This work is in partnership between Southeast Coastal Ocean Observing Regional Association (@secoora_org), the Great Lakes Observing System (@greatlakesobservingsystem), Indiana Dunes State Park (@indianadunessp), Indiana Department of Natural Resources (@indianadnr), and Illinois-Indiana Sea Grant with support from Surfline (@surfline).Check out IISG’s website for more information on this collaborative project at the link in bio. Also featured on Seagull and Indiana Coastal Atlas.Purdue Forestry and Natural ResourcesUniversity of Illinois ExtensionSouthern Lake Michigan Water Safety Task ForceUS National Weather Service Chicago IllinoisSave the DunesShirley Heinze Land TrustIndiana Dunes National ParkIndiana DunesFriends of Indiana Dunes, Inc.
Science Sips is a series hosted by Illinois-Indiana Sea Grant, Sketchbook Brewing Company, and Northwestern University’s Center for Water that brings together researchers, scientists, and curious minds over good conversation and cold drinks. Each event features experts sharing their work in an accessible, informal setting. No lab coat required.At this gathering, Chicago author Dick Lanyon will take us back in time with a look at the history behind the construction of the Calumet and Chicago waterways and how these feats of engineering shape the region we live in today. Austin Happel from Shedd Aquarium will also share the latest research on fish communities in the Chicago River, including what the science is telling us right now about the health of this urban waterway.Stick around to test your Great Lakes knowledge with a round of trivia!Details at the link in bio.