Inland and Coastal Aquatic Systems Do Heavy Lifting in the Global Nitrogen Cycle

A close-up image of a flowing stream from ground level shows gently bubbling water and shoreline vegetation.

After more than a decade of research and collaboration, researchers from Michigan Tech, Baylor University and Boston University have discovered that inland and coastal aquatic systems play a much larger role in nitrogen fixation and the global nitrogen cycle than their small surface area would suggest.

Amy Marcarelli (BioSci/ESC) is one of three principal investigators on the project, along with Boston U Earth and Environment and Biology Professor Robinson W. Fulweiler and Thad Scott, a Baylor biology professor. The team’s research was highlighted in the article “Global importance of nitrogen fixation across inland and coastal waters,” recently published in the journal Science.

“The key findings of this project are that nitrogen fixation is ubiquitous across inland and coastal waters,” said Marcarelli. “It’s an important process in sediments, and these ecosystems contribute more substantially to the global nitrogen budget than we previously thought.”

Read about the study on Michigan Tech's Unscripted Research Blog.

Campus Water Service Disruptions

The City of Houghton will be performing routine maintenance on the municipal water system today and tomorrow, July 10 and July 11. This work may result in periodic water service disruptions to Michigan Tech campus buildings. Outages, if any, are anticipated to last approximately 45 minutes.

As more information on timing becomes available, Facilities Management will notify occupants of any affected buildings prior to any disruptions.

Please contact Facilities Management at 906-487-2303 if you have any questions.

MTU Hosting Community Deep Mapping Institute

Michigan Tech's Department of Social Sciences, Geospatial Research Facility and Great Lakes Research Center welcome 28 fellows from around North and South America to campus for the next eight days.

The National Endowment for the Humanities Community Deep Mapping Institute fellows represent nine project teams whose members are all learning how to do community-driven deep mapping. Deep mapping integrates spatio-temporal data into geographic information systems and utilizes the world-leading technologies developed in the Keweenaw Time Traveler project.

The institute is lead by Don Lafreniere, Sarah Scarlett and Mark Rhodes (all SS), Dan Trepal and James Juip (both GRF), and Krysta Ryzewski of Wayne State University.

Job Postings

Job Postings for Thursday, July 10, 2025

Staff and faculty job descriptions are available on the Human Resources website. For more information regarding staff positions, call 906-487-2280 or email humanresources@mtu.edu. For more information regarding faculty positions, contact the academic department in which the position is posted.

Director of Financial Aid, Financial Aid Administration. Apply online.

Administrative Aide (12 months, 40 hours), Electrical and Computer Engineering (UAW posting dates July 10 to July 16, 2025 — external applicants are encouraged to apply; however, internal UAW applicants are given first consideration if they apply during the internal UAW posting dates). Apply online.

Michigan Technological University is an Equal Opportunity Educational Institution/Equal Opportunity Employer that provides equal opportunity for all, including protected veterans and individuals with disabilities.

Accommodations are available. If you require any auxiliary aids, services, or other accommodations to apply for employment, or for an interview, at Michigan Technological University, please notify the Human Resources office at 906-487-2280 or humanresources@mtu.edu.

New Funding

Tatyana Karabencheva-Christova (Chem/HRI) is the principal investigator on a project that has received $244,450 of a potential $1,673,982 research and development grant from the U.S. Department of Health and Human Services/National Institutes of Health/National Library of Medicine.

This potential five-year project is titled "Understanding Metalloenzymes Mechanisms and Dynamics."

In the News

Inside Higher Ed published an article co-authored by Holly Hassel (HU) guiding members of team writing projects through a short conversation recommended for all such teams before they start writing.

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The Keweenaw Report mentioned the Michigan Tech Archives in a story about local museums capturing visitors with the community’s stories. The article highlighted the Copper Range Museum, noting the valuable resources provided by the MTU Archives for further research on local history.

Today's Campus Events

To have your event automatically appear, please submit them to the University Events Calendar.

PhD Defense: Fan Ding

Computer Science Co-advisors: Scott Kuhl and Keith Vertanen Sensing Tap Location Using an Array of Acoustic Sensors Attend Virtually: https://michigantech.zoom.us/j/81632451173

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Strength and Conditioning : Summer Middle School Program

Lead by the MTU Strength and Conditioning Staff, this 8-week summer program is for athletes looking to improve their performance and fitness level to prepare for the upcoming season. Program includes (3) sessions per week in a varsity collegiate setting and SDC membership access for the duration of the program.

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Strength and Conditioning : Summer High School Program

Lead by the MTU Strength and Conditioning Staff, this 8-week summer program is for athletes looking to improve their performance and fitness level to prepare for the upcoming season. Program includes (3) sessions per week in a varsity collegiate setting and SDC membership access for the duration of the program.

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PhD Defense: Kenneth Larsen

Engineering - Environmental Advisor: Brian Barkdoll Dam It All: A Multi-scalar Investigation Into The Ecological Role and Function of Beaver Dams

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Volleyball : Summer Middle School All-Skills Camp

Bump your volleyball game up to the next level. This camp is designed specifically for players with goals of improving their overall technique and tactical knowledge of the game. Through the All-Skills Camp, you’ll fine-tune your technique and advance your knowledge of the game. We will focus on first contact (serving and passing) and refining other skills such as setting, attacking, and defense. There will also be a segment devoted exclusively to position training. You’ll have a blast meeting and playing with new friends in the SDC Varsity Gym.